July 2025 - NANOG - lists.nanog.org

Remote hands assistance in LA
by Suriya Kamon 28 Jul '25

28 Jul '25

Hello NANOG, We are after remote hands assistance for one of our sites in LA (well known DC) for major and minor works. Please contact me off list with your contact details, rates, etc. Thank you all. Cheers, S plusminus3 at protonmail dot com Sent with [Proton Mail](https://proton.me/mail/home) secure email.

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UDP traffic levels
by Djamel Sadok 26 Jul '25

26 Jul '25

Hi, Could anyone tell me what is the level of UDP traffic on the internet? and among UDP traffic, which percentage is not responsive to congestion (i.e. classic UDP without including responsive flows to congestion such as QUIC and RTP)? Thanks, Djamel

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 25 Jul '25

25 Jul '25

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 26 Jul, 2025 IPv4 BGP Table (Global) as seen at Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 991858 Prefixes after maximum aggregation (per Origin AS): 384350 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 487900 Number of IPv4 prefixes with a valid ROA: 552079 Number of IPv4 prefixes with an invalid ROA: 1476 Number of IPv4 prefixes with no ROA: 438303 Total ASes present in the Internet Routing Table: 77133 Prefixes per ASN: 12.86 Origin-only ASes present in the Internet Routing Table: 65995 Origin ASes announcing only one prefix: 26973 Transit ASes present in the Internet Routing Table: 11138 Transit-only ASes present in the Internet Routing Table: 563 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 59 Max AS path prepend of ASN ( 37447) 54 Prefixes from unregistered ASNs in the Routing Table: 1139 Number of instances of unregistered ASNs: 1181 Number of 32-bit ASNs allocated by the RIRs: 46946 Number of 32-bit ASNs visible in the Routing Table: 38671 Prefixes from 32-bit ASNs in the Routing Table: 206639 Number of bogon 32-bit ASNs visible in the Routing Table: 113 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 454 Number of addresses announced to Internet: 3108124800 Equivalent to 185 /8s, 66 /16s and 56 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 323780 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263526 Total APNIC prefixes after maximum aggregation: 78675 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 254464 Unique aggregates announced from the APNIC address blocks: 105073 APNIC Region origin ASes present in the Internet Routing Table: 14765 APNIC Prefixes per ASN: 17.23 APNIC Region origin ASes announcing only one prefix: 4522 APNIC Region transit ASes present in the Internet Routing Table: 1972 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10279 Number of APNIC addresses announced to Internet: 750146304 Equivalent to 44 /8s, 182 /16s and 83 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 291522 Total ARIN prefixes after maximum aggregation: 132139 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293229 Unique aggregates announced from the ARIN address blocks: 141378 ARIN Region origin ASes present in the Internet Routing Table: 19253 ARIN Prefixes per ASN: 15.23 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 2001 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5266 Number of ARIN addresses announced to Internet: 1349388288 Equivalent to 80 /8s, 110 /16s and 8 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 276526 Total RIPE prefixes after maximum aggregation: 136220 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275422 Unique aggregates announced from the RIPE address blocks: 177989 RIPE Region origin ASes present in the Internet Routing Table: 28966 RIPE Prefixes per ASN: 9.51 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 4036 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12588 Number of RIPE addresses announced to Internet: 732187008 Equivalent to 43 /8s, 164 /16s and 73 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124587 Total LACNIC prefixes after maximum aggregation: 29762 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120895 Unique aggregates announced from the LACNIC address blocks: 49028 LACNIC Region origin ASes present in the Internet Routing Table: 11270 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2544 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9237 Number of LACNIC addresses announced to Internet: 171117824 Equivalent to 10 /8s, 51 /16s and 13 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 34558 Total AfriNIC prefixes after maximum aggregation: 6792 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 47394 Unique aggregates announced from the AfriNIC address blocks: 14048 AfriNIC Region origin ASes present in the Internet Routing Table: 1937 AfriNIC Prefixes per ASN: 24.47 AfriNIC Region origin ASes announcing only one prefix: 699 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1301 Number of AfriNIC addresses announced to Internet: 105029376 Equivalent to 6 /8s, 66 /16s and 159 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 12116 8762 117 CHINAMOBILE-CN China Mobile Communication 7545 6139 840 618 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4815 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3699 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3295 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2915 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2821 812 181 CMNET-JIANGSU-AP China Mobile communicati 4766 2311 11519 607 KIXS-AS-KR Korea Telecom, KR Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13661 40974 5279 AMAZON-02, US 11492 4819 319 605 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3412 8771 859 COGENT-174, US 22773 3339 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3197 3856 433 GOOGLE-CLOUD-PLATFORM, US 16625 2937 1238 2179 AKAMAI-AS, US 4155 2880 218 1730 USDA-1, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7595 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3923 3395 127 AKAMAI-ASN1, NL 9009 3816 362 2132 M247, RO 12389 3123 2315 871 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2323 164 1691 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1585 1852 14 TE-AS TE-AS, EG 203020 1525 190 671 HOSTROYALE, IN Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12311 3260 575 UNINET, MX 10620 3484 474 1024 Telmex Colombia S.A., CO 13999 2523 511 349 Mega Cable, S.A. de C.V., MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 28573 1372 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1348 787 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1205 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1188 371 22 Telefonica del Peru S.A.A., PE 22884 1067 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1020 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1729 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1313 1489 356 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1229 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 832 520 43 Vodafone-, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 544 57 60 WANANCHI-, KE Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13661 40974 5279 AMAZON-02, US 8151 12311 3260 575 UNINET, MX 9808 12116 8762 117 CHINAMOBILE-CN China Mobile Communication 12479 7595 1712 148 UNI2-AS, ES 7545 6139 840 618 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4819 319 605 CABLEONE, US 4538 4815 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 3923 3395 127 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 12116 11999 CHINAMOBILE-CN China Mobile Communications Grou 8151 12311 11736 UNINET, MX 12479 7595 7447 UNI2-AS, ES 7545 6139 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4815 4739 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 11492 4819 4214 CABLEONE, US 9498 4468 4156 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3891 VIETEL-AS-AP Viettel Group, VN 20940 3923 3796 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:92 /12:298 /13:580 /14:1201 /15:2128 /16:13806 /17:8290 /18:13582 /19:24787 /20:44768 /21:52239 /22:112349 /23:102921 /24:613956 /25:790 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6543 7595 UNI2-AS, ES 8151 6531 12311 UNINET, MX 11492 3611 4819 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2492 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 13661 AMAZON-02, US 30036 2283 2624 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3484 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1770 2:1497 3:857 4:10 5:4709 6:163 7:6 8:1575 9:2 11:172 12:1341 13:463 14:2614 15:367 16:286 17:375 18:897 20:559 21:4 22:188 23:7740 24:2677 25:2 27:2736 29:19 31:3354 32:38 33:1 34:80 35:258 36:3853 37:4568 38:9500 39:942 40:248 41:4241 42:937 43:2677 44:374 45:18645 46:5077 47:338 49:1891 50:2012 51:589 52:1549 54:323 55:1097 56:11 57:276 58:2098 59:1357 60:1171 61:2802 62:2979 63:1793 64:5528 65:2141 66:4737 67:3096 68:1074 69:3892 70:1049 71:623 72:2856 74:2796 75:1505 76:610 77:2758 78:1899 79:1694 80:2215 81:2044 82:3184 83:1441 84:1895 85:3482 86:1092 87:2380 88:1312 89:4418 90:777 91:8402 92:2707 93:2950 94:4079 95:4398 96:1452 97:311 98:954 99:692 100:71 101:1198 102:3892 103:32207 104:5246 105:799 106:972 107:2655 108:1274 109:4189 110:2227 111:3398 112:2290 113:1576 114:1972 115:2184 116:2069 117:2620 118:2461 119:1947 120:2175 121:1384 122:2807 123:2239 124:1707 125:2904 126:91 128:1601 129:973 130:1305 131:2032 132:777 133:450 134:1585 135:351 136:1463 137:1187 138:2828 139:1579 140:1695 141:1517 142:1913 143:1937 144:1171 145:565 146:2185 147:2097 148:2721 149:2939 150:1276 151:2230 152:2072 153:524 154:7564 155:1849 156:3105 157:1938 158:1352 159:2521 160:3569 161:1889 162:3882 163:2248 164:1873 165:2377 166:1533 167:2018 168:3969 169:785 170:5127 171:1003 172:4229 173:3398 174:919 175:1318 176:3735 177:4741 178:3937 179:2294 180:2578 181:4124 182:3535 183:1950 184:2074 185:21600 186:5229 187:4673 188:4265 189:4376 190:9564 191:1497 192:11355 193:9471 194:7776 195:5601 196:3295 197:3192 198:6230 199:8627 200:8226 201:6371 202:10598 203:10610 204:4672 205:3643 206:4528 207:3640 208:4276 209:5185 210:4914 211:2704 212:4558 213:3820 214:1022 215:48 216:6746 217:3232 218:1429 219:564 220:2144 221:1197 222:874 223:2692 End of report

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** From Peering to Progress: Connect with the Brightest Minds at N95 + More!
by Nanog News 24 Jul '25

24 Jul '25

*** From Peering to Progress: Connect with the Brightest Minds at N95* ------------------------------------------------------------ *Register Now for NANOG 95 (27-29, Oct.) in Arlington, TX* "The thing that I've noticed the most is how wonderfully kind and helpful everybody is here." "NANOG is the only conference that connects you with the bigger players and the more seasoned people that show up in the community. I haven't seen that as much at other conferences." Let’s build, break, peer, and push the boundaries of what’s possible, together. *REGISTER NOW* (https://nanog.org/events/nanog-95/register/) *** Advance the Internet. Educate the Community. Speak at N95!* ------------------------------------------------------------ *NANOG 95 Call for Presentations* We are aiming to highlight (but are not limited to) presentations focusing on Enterprise Networks and Wireless Technology. MORE INFO (https://nanog.org/program/call-presentations/) *** NANOG Beer N' Gear Sponsorships Available!* ------------------------------------------------------------ Reach out to sponsorship(a)nanog.org (mailto:sponsorship@nanog.org) for more info. *** Stay Connected* ------------------------------------------------------------ http://www.facebook.com http://www.instagram.com/nanog_org/ http://www.linkedin.com/company/nanog/ https://www.twitter.com/nanog/ http://nanog.org

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Hello NANOG Apply Today for the ARIN 56 Fellowship Program
by John Sweeting 21 Jul '25

21 Jul '25

Hello NANOG, Please see the announcement below referencing ARIN's Fellowship Program. ________________________________ From: arin-announce-bounces(a)arin.net Sent: Tuesday, July 8, 2025 10:28 AM To: arin-announce(a)arin.net Subject: Apply Today for the ARIN 56 Fellowship Program Interested in Internet governance, number resource policy, and getting involved in the ARIN community? Become an ARIN Fellow! Applications for the ARIN 56 Fellowship Program are now open, and we encourage you to apply for this specialized, interactive learning opportunity.   APPLY NOW: https://arin.net/beafellow Applications are now being accepted through 24 July 2025.  -------- What to Expect Selected Fellows will participate in virtual sessions before and after the ARIN 56 Public Policy and Members Meeting on 30-31 October 2025 in Arlington, Texas. Fellows may attend ARIN 56 either in person or virtually, as determined by the Fellowship Selection Committee. Fellows are also encouraged to attend NANOG 95 on 27-29 October in Arlington. With the personal support from experienced ARIN community Mentors, Fellows will have the opportunity to: - Ask questions and receive feedback - Gain the knowledge and confidence to join in community discussions and contribute new ideas - Become part of the future of Internet governance and policy in the ARIN region  -------- Who Should Apply Individuals who are 18 years of age or older and reside in the ARIN region are eligible to apply if they have a demonstrated interest in the ARIN community and its Policy Development Process for the management of Internet number resources.   Applicants should understand the importance of ARIN’s mission and be familiar with ARIN services, the Internet number resources it manages, and the processes reflected in the Number Resource Policy Manual (NRPM).   To learn more about ARIN’s Fellowship Program, the selection process, and the Terms and Conditions, please visit: https://www.arin.net/fellowship. Applicants can email fellowships(a)arin.net for more information or to request a customizable letter to their employer that highlights the benefits of taking part in ARIN’s Fellowship Program.  ARIN looks forward to receiving your application soon!  Regards,  Amanda Gauldin  Project Manager American Registry for Internet Numbers (ARIN)

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IAB Workshop on IP Geolocation Issues/Futures
by Livingood, Jason 21 Jul '25

21 Jul '25

Heads up for NANOG folks about this IAB workshop – of obvious interest to this community! Jason (co-organizer of the workshop) https://datatracker.ietf.org/group/ipgeows/about/ Workshop Description This workshop aims to understand the current use cases for publishing, discovering, and consuming IP address geolocation data ('IP-geo' hereafter). It will also explore areas for improvement, both in ways to update or replace IP geolocation mechanisms, and to consider mechanisms that satisfy the use cases without relying on IP addresses. The IAB seeks short position papers on the topics listed below. This list is non-exhaustive and should be interpreted broadly. * Today's Use Cases: How is IP-geo data used today? In particular, what are the root challenges, technical needs, or business needs that IP-geo data is being leveraged to address? * Gaps and Problems: What are gaps or problems with the current approaches being used by industry? Are there preferences for particular file types? How effective are current approaches? What are the impacts on user privacy? * Future Opportunities: If we re-designed technical solutions to address the motivating use cases, what would those solutions look like? Are there alternative approaches that can avoid the gaps and problems we have today? Is there value in conveying other information in addition to or instead of geography, such as type of last mile network connection? All inputs submitted and considered relevant will be published on the workshop website. The organizers will issue invitations based on the submissions received. Sessions will be organized according to content, and not every accepted submission or invited attendee will have an opportunity to present; the intent is to foster an active discussion and not simply to have a sequence of presentations. A workshop report covering all submissions and the workshop discussion will be published afterwards. Call for Papers The workshop will be held online in three 2-to-3-hour sessions spread over the first week of December 2025. The workshop will be by invitation only. Those wishing to attend should submit a "position paper" or "expressions of interest" to address the above topics and questions. Paper length is limited to 3 pages; brevity is encouraged and PDF format is preferred. All inputs submitted and considered relevant will be published on the workshop website, so do not include any confidential information. Position papers from those not planning to attend the workshop themselves are also encouraged. Not every accepted submission or invited attendee will have an opportunity to present; the intent is to foster an active discussion and not simply to have a sequence of presentations. The workshop may also include breakout sessions. A workshop report covering all submissions and discussions will be published afterward. Please indicate your interest by submitting a position paper or expression of interest by 19 September 2025 to ip-geo-workshop-pc(a)iab.org<mailto:ip-geo-workshop-pc@iab.org> In-Scope Topics The following topics are considered in-scope; however, this list is non-exhaustive: Actionable requirements for IP address geolocation, including: * How applications that use IP-geo information leverage this data, such as search engines, video streaming platforms, Content Delivery Networks (CDNs), speed test sites, etc. What challenges, technical requirements, or business requirements does IP-geo data currently address? * Formatting of IP-geo files, including Comma Separated Value (CSV), JavaScript Object Notation (JSON), and text files * Methods and frequency of updating, publishing, distributing, and consuming IP-geo data * Trust and privacy issues related to IP-geo data * Gaps and problems in current IP-geo approaches * Alternative approaches to addressing use cases that may not involve IP-geo Logistics * Initial submissions due: 2025-10-03 (Earlier submissions are appreciated) via email to ip-geo-workshop-pc(a)iab.org<mailto:ip-geo-workshop-pc@iab.org> * Invitations Issued by: 2025-10-24 * Workshop Location: Online * Workshop Dates: 3 days, dates TBD, week of 1-5 December 2025 * Workshop Times: 2-3 hours (XX:00 - XX:00 UTC, TBD) each day * Program Committee: Glenn Deen (SVTA, NBCUniversal), Jana Iyengar (IAB, Netflix), Mirja Kühlewind (IAB, Ericsson) Warren Kumari (IAB, Google), Jason Livingood (IAB, Comcast), Tommy Pauly (IAB, Apple) * Contact the Program Committee with any further questions: ip-geo-workshop-pc(a)iab.org<mailto:ip-geo-workshop-pc@iab.org>.

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NANOG94 Security Track Overview
by Krassimir Tzvetanov 18 Jul '25

18 Jul '25

Hello Everyone, Since the Security Track was not recorded, I wanted to share a summary of what we discussed. I had the presenters review this write up as well to make sure I am not spilling the beans. Let me know if this is helpful and I will try to write up summaries when the track is not recorded. https://hydrolix.io/blog/residential-criminal-proxies/?utm_source=smlk Also, here is a Bitly version if you want to repost something short on social media: https://bit.ly/4nWaEXD I apologize, it took over a month. I meant to post this earlier, but you know life happens. Regards, Krassi

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 18 Jul '25

18 Jul '25

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 19 Jul, 2025 IPv4 BGP Table (Global) as seen at Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 989694 Prefixes after maximum aggregation (per Origin AS): 383745 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486902 Number of IPv4 prefixes with a valid ROA: 550929 Number of IPv4 prefixes with an invalid ROA: 1483 Number of IPv4 prefixes with no ROA: 437282 Total ASes present in the Internet Routing Table: 77085 Prefixes per ASN: 12.84 Origin-only ASes present in the Internet Routing Table: 65930 Origin ASes announcing only one prefix: 26925 Transit ASes present in the Internet Routing Table: 11155 Transit-only ASes present in the Internet Routing Table: 573 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 75 Max AS path prepend of ASN ( 63293) 64 Prefixes from unregistered ASNs in the Routing Table: 1126 Number of instances of unregistered ASNs: 1170 Number of 32-bit ASNs allocated by the RIRs: 46890 Number of 32-bit ASNs visible in the Routing Table: 38614 Prefixes from 32-bit ASNs in the Routing Table: 206129 Number of bogon 32-bit ASNs visible in the Routing Table: 117 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 439 Number of addresses announced to Internet: 3107910272 Equivalent to 185 /8s, 62 /16s and 242 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 323283 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 262807 Total APNIC prefixes after maximum aggregation: 78488 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 253694 Unique aggregates announced from the APNIC address blocks: 105031 APNIC Region origin ASes present in the Internet Routing Table: 14754 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4513 APNIC Region transit ASes present in the Internet Routing Table: 1977 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10271 Number of APNIC addresses announced to Internet: 750094592 Equivalent to 44 /8s, 181 /16s and 137 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 291313 Total ARIN prefixes after maximum aggregation: 132045 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293048 Unique aggregates announced from the ARIN address blocks: 141047 ARIN Region origin ASes present in the Internet Routing Table: 19237 ARIN Prefixes per ASN: 15.23 ARIN Region origin ASes announcing only one prefix: 7023 ARIN Region transit ASes present in the Internet Routing Table: 2012 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 75 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5257 Number of ARIN addresses announced to Internet: 1349356544 Equivalent to 80 /8s, 109 /16s and 140 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 276320 Total RIPE prefixes after maximum aggregation: 135959 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275268 Unique aggregates announced from the RIPE address blocks: 177399 RIPE Region origin ASes present in the Internet Routing Table: 28959 RIPE Prefixes per ASN: 9.51 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 4024 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12566 Number of RIPE addresses announced to Internet: 732200064 Equivalent to 43 /8s, 164 /16s and 124 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124762 Total LACNIC prefixes after maximum aggregation: 29765 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 121095 Unique aggregates announced from the LACNIC address blocks: 49084 LACNIC Region origin ASes present in the Internet Routing Table: 11265 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2562 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9231 Number of LACNIC addresses announced to Internet: 171116800 Equivalent to 10 /8s, 51 /16s and 9 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 33366 Total AfriNIC prefixes after maximum aggregation: 6743 AfriNIC Deaggregation factor: 4.95 Prefixes being announced from the AfriNIC address blocks: 46150 Unique aggregates announced from the AfriNIC address blocks: 13969 AfriNIC Region origin ASes present in the Internet Routing Table: 1924 AfriNIC Prefixes per ASN: 23.99 AfriNIC Region origin ASes announcing only one prefix: 688 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1289 Number of AfriNIC addresses announced to Internet: 104899840 Equivalent to 6 /8s, 64 /16s and 165 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 11881 8762 118 CHINAMOBILE-CN China Mobile Communication 7545 6159 840 621 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4814 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4467 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3704 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2909 863 522 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2743 812 181 CMNET-JIANGSU-AP China Mobile communicati 4766 2323 11519 609 KIXS-AS-KR Korea Telecom, KR Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13682 40975 5271 AMAZON-02, US 11492 4812 319 611 CABLEONE, US 7155 3856 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3396 8771 859 COGENT-174, US 22773 3340 3032 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3196 3855 432 GOOGLE-CLOUD-PLATFORM, US 16625 2937 1239 2182 AKAMAI-AS, US 4155 2871 218 1734 USDA-1, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7600 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3929 3395 127 AKAMAI-ASN1, NL 9009 3786 361 2107 M247, RO 12389 3127 2317 874 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2323 164 1691 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1550 1852 14 TE-AS TE-AS, EG 203020 1472 164 649 HOSTROYALE, IN Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12306 3255 574 UNINET, MX 10620 3514 482 1020 Telmex Colombia S.A., CO 13999 2527 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1201 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1066 68 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1019 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1733 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36992 1219 1482 323 ETISALAT-MISR, EG 36935 822 520 43 Vodafone-, EG 37069 702 1112 11 MOBINIL, EG 24863 661 389 22 LINKdotNET-AS, EG 36914 572 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 539 57 59 WANANCHI-, KE Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13682 40975 5271 AMAZON-02, US 8151 12306 3255 574 UNINET, MX 9808 11881 8762 118 CHINAMOBILE-CN China Mobile Communication 12479 7600 1712 148 UNI2-AS, ES 7545 6159 840 621 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4814 4192 76 ERX-CERNET-BKB China Education and Resear 11492 4812 319 611 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 9498 4467 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 3929 3395 127 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 11881 11763 CHINAMOBILE-CN China Mobile Communications Grou 8151 12306 11732 UNINET, MX 12479 7600 7452 UNI2-AS, ES 7545 6159 5538 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4814 4738 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 11492 4812 4201 CABLEONE, US 9498 4467 4155 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3891 VIETEL-AS-AP Viettel Group, VN 20940 3929 3802 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:92 /12:298 /13:580 /14:1201 /15:2127 /16:13781 /17:8289 /18:13572 /19:24742 /20:44446 /21:52217 /22:111830 /23:102813 /24:612839 /25:796 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6542 7600 UNI2-AS, ES 8151 6526 12306 UNINET, MX 11492 3606 4812 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2815 3856 VIASAT-SP-BACKBONE, US 22773 2493 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2345 13682 AMAZON-02, US 30036 2270 2611 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2201 3514 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1768 2:1501 3:853 4:10 5:4701 6:163 7:6 8:1577 9:1 11:172 12:1334 13:452 14:2600 15:365 16:286 17:383 18:897 20:558 21:4 22:188 23:7696 24:2677 25:2 27:2753 29:19 31:3344 32:38 33:1 34:80 35:259 36:3644 37:4571 38:9442 39:913 40:253 41:4154 42:935 43:2662 44:368 45:18611 46:5093 47:337 49:1882 50:1947 51:592 52:1553 54:327 55:1113 56:11 57:274 58:2111 59:1353 60:1174 61:2809 62:2945 63:1799 64:5522 65:2163 66:4722 67:3092 68:1090 69:3895 70:1050 71:625 72:2856 74:2789 75:1504 76:612 77:2756 78:1898 79:1693 80:2215 81:2046 82:3175 83:1436 84:1887 85:3463 86:1088 87:2376 88:1316 89:4414 90:778 91:8405 92:2701 93:2943 94:4069 95:4400 96:1446 97:311 98:955 99:696 100:71 101:1192 102:3875 103:32205 104:5217 105:756 106:971 107:2639 108:1189 109:4174 110:2240 111:3371 112:2241 113:1575 114:1962 115:2181 116:2064 117:2582 118:2463 119:1938 120:2159 121:1382 122:2802 123:2235 124:1696 125:2910 126:91 128:1595 129:973 130:1303 131:2032 132:768 133:450 134:1640 135:350 136:1450 137:1181 138:2815 139:1575 140:1697 141:1519 142:1905 143:1995 144:1194 145:562 146:2179 147:2103 148:2708 149:2941 150:1230 151:2231 152:2093 153:525 154:7572 155:1846 156:3105 157:1939 158:1347 159:2513 160:3616 161:1880 162:3860 163:2251 164:1871 165:2347 166:1527 167:2022 168:3996 169:788 170:5142 171:1008 172:4217 173:3394 174:920 175:1317 176:3722 177:4761 178:3932 179:2314 180:2598 181:4129 182:3506 183:1914 184:2075 185:21590 186:5237 187:4685 188:4264 189:4343 190:9557 191:1504 192:11354 193:9478 194:7775 195:5594 196:3282 197:3165 198:6220 199:8611 200:8232 201:6384 202:10589 203:10601 204:4676 205:3653 206:4529 207:3636 208:4275 209:5184 210:4850 211:2695 212:4563 213:3823 214:1025 215:46 216:6755 217:3209 218:1421 219:562 220:2145 221:1191 222:874 223:2690 End of report

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1.1.1.1
by Randy Bush 18 Jul '25

18 Jul '25

1.1.1.1 was mis-announced by tata. see https://www.thousandeyes.com/blog/cloudflare-outage-analysis-july-14-2025 i would be interested in analyses of the blast radius, i.e. to/through what extents of the topology it propagated before it hit rov. of course, that question naïvely assumes there is a roa. randy

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** VIDEO: NANOG 94 Recap is Here! + More!
by Nanog News 17 Jul '25

17 Jul '25

*** VIDEO: NANOG 94 Recap is Here!* ------------------------------------------------------------ *Experience our Last Conference in Denver* Whether you’re a longtime attendee or curious first-timer, this is your chance to see why NANOG conferences are the premier event for technologists. *WATCH NOW* (https://nanog.org/stories/nanog-tv/best-of-nanog-94/) *** N95 Call for Presentations!* ------------------------------------------------------------ *Transform your Research, Ideas, and Best Practices into a Conference* We are aiming to highlight (but are not limited to) presentations focusing on Enterprise Networks and Wireless Technology. *MORE INFO* (https://nanog.org/program/call-presentations/) *** Stay Connected with NANOG Online—Join Our Discord + Mailing Lists!* ------------------------------------------------------------ *The Conversation Doesn’t Stop When the Conference Ends* Join the NANOG Discord to engage in real-time with peers, speakers, and experts on everything from routing to career advice, or subscribe to our mailing lists for in-depth technical discussions, industry news, and collaborative problem-solving. *See you online!* *LEARN MORE* (http://discord.NANOG.org) *** NANOG Espresso Bar Sponsorship Available!* ------------------------------------------------------------ Reach out to sponsorship(a)nanog.org (mailto:sponsorship@nanog.org) for more info. *** Stay Connected* ------------------------------------------------------------ http://www.facebook.com http://www.instagram.com/nanog_org/ http://www.linkedin.com/company/nanog/ https://www.twitter.com/nanog/ http://nanog.org

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