April 2026 - NANOG - lists.nanog.org

Anyone from IBM Cloud/Softlayer on this list?
by Yan Filyurin 11 Apr '26

11 Apr '26

Had a hopefully quick question. Thank you! Yan Filyurin Nebius Group

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 10 Apr '26

10 Apr '26

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 11 Apr, 2026 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: 1043690 Prefixes after maximum aggregation (per Origin AS): 399679 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 513366 Number of IPv4 prefixes with a valid ROA: 628212 Number of IPv4 prefixes with an invalid ROA: 1476 Number of IPv4 prefixes with no ROA: 414002 Total ASes present in the Internet Routing Table: 78316 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 67300 Origin ASes announcing only one prefix: 27400 Transit ASes present in the Internet Routing Table: 11016 Transit-only ASes present in the Internet Routing Table: 564 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1001 Number of instances of unregistered ASNs: 1043 Number of 32-bit ASNs allocated by the RIRs: 49288 Number of 32-bit ASNs visible in the Routing Table: 40350 Prefixes from 32-bit ASNs in the Routing Table: 227424 Number of bogon 32-bit ASNs visible in the Routing Table: 136 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3108504704 Equivalent to 185 /8s, 72 /16s and 4 /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: 339470 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286546 Total APNIC prefixes after maximum aggregation: 82908 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 273456 Unique aggregates announced from the APNIC address blocks: 107510 APNIC Region origin ASes present in the Internet Routing Table: 15183 APNIC Prefixes per ASN: 18.01 APNIC Region origin ASes announcing only one prefix: 4683 APNIC Region transit ASes present in the Internet Routing Table: 2007 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10739 Number of APNIC addresses announced to Internet: 753994368 Equivalent to 44 /8s, 241 /16s and 10 /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: 303724 Total ARIN prefixes after maximum aggregation: 135932 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303242 Unique aggregates announced from the ARIN address blocks: 146844 ARIN Region origin ASes present in the Internet Routing Table: 19417 ARIN Prefixes per ASN: 15.62 ARIN Region origin ASes announcing only one prefix: 7105 ARIN Region transit ASes present in the Internet Routing Table: 1930 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 29 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5546 Number of ARIN addresses announced to Internet: 1347913984 Equivalent to 80 /8s, 87 /16s and 137 /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, 393216-404380 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: 287824 Total RIPE prefixes after maximum aggregation: 142306 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290355 Unique aggregates announced from the RIPE address blocks: 188916 RIPE Region origin ASes present in the Internet Routing Table: 29390 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12172 RIPE Region transit ASes present in the Internet Routing Table: 3962 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13263 Number of RIPE addresses announced to Internet: 733194880 Equivalent to 43 /8s, 179 /16s and 170 /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: 127700 Total LACNIC prefixes after maximum aggregation: 30891 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 122879 Unique aggregates announced from the LACNIC address blocks: 50269 LACNIC Region origin ASes present in the Internet Routing Table: 11395 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2706 LACNIC Region transit ASes present in the Internet Routing Table: 2561 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9420 Number of LACNIC addresses announced to Internet: 169896064 Equivalent to 10 /8s, 32 /16s and 104 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36895 Total AfriNIC prefixes after maximum aggregation: 7009 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53336 Unique aggregates announced from the AfriNIC address blocks: 19465 AfriNIC Region origin ASes present in the Internet Routing Table: 2018 AfriNIC Prefixes per ASN: 26.43 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 53 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103309824 Equivalent to 6 /8s, 40 /16s and 98 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13910 8945 104 CHINAMOBILE-CN China Mobile Communication 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5033 4193 77 ERX-CERNET-BKB China Education and Resear 9498 4903 549 326 BBIL-AP BHARTI Airtel Ltd., IN 18403 4547 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3485 887 178 CMNET-JIANGSU-AP China Mobile communicati 45899 3360 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 3018 860 521 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14611 41274 5674 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3117 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4668 310 1033 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3719 1305 76 SHAW - Shaw Communications, CA 396982 3320 4859 493 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3271 8767 828 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2721 222 906 AS-COLOCROSSING - HostPapa, US 30036 2671 364 304 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7161 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 9009 3833 354 2247 M247, RO 20940 3819 3389 110 AKAMAI-ASN1, NL 12389 3173 2319 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2720 197 2002 CDNEXT, GB 34984 2449 365 571 TELLCOM-AS, TR 8452 1729 1852 17 TE-AS TE-AS, EG 203020 1642 249 809 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12751 3300 620 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2446 506 345 Mega Cable, S.A. de C.V., MX 11830 1938 369 65 Instituto Costarricense de Electricidad y 11664 1436 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1245 371 22 INTEGRATEL PERU S.A.A., PE 26615 1066 2392 101 TIM SA, BR 22884 1053 71 362 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 24863 1296 389 16 LINKdotNET-AS, EG 36935 1242 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 556 58 61 WANANCHI-, KE 36914 550 82 3 KENET-AS, 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 14611 41274 5674 AMAZON-02 - Amazon.com, Inc., US 9808 13910 8945 104 CHINAMOBILE-CN China Mobile Communication 8151 12751 3300 620 UNINET, MX 12479 7161 1711 149 UNI2-AS, ES 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5033 4193 77 ERX-CERNET-BKB China Education and Resear 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4903 549 326 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3117 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4668 310 1033 CABLEONE - CABLE ONE, INC., US Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13910 13806 CHINAMOBILE-CN China Mobile Communications Grou 8151 12751 12131 UNINET, MX 12479 7161 7012 UNI2-AS, ES 7545 5916 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5033 4956 ERX-CERNET-BKB China Education and Research Net 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4903 4577 BBIL-AP BHARTI Airtel Ltd., IN 18403 4547 4521 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4028 VIETEL-AS-AP Viettel Group, VN 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:40 /11:95 /12:297 /13:582 /14:1186 /15:2099 /16:13637 /17:8378 /18:13404 /19:25712 /20:46981 /21:52904 /22:114094 /23:107644 /24:655920 /25:687 /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 8151 6941 12751 UNINET, MX 12479 6104 7161 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3528 4668 CABLEONE - CABLE ONE, INC., US 6327 3500 3719 SHAW - Shaw Communications, CA 22773 3054 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2623 14611 AMAZON-02 - Amazon.com, Inc., US 30036 2323 2671 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2535 2:1806 3:994 4:5 5:5107 6:196 7:6 8:1510 9:39 11:172 12:1190 13:688 14:2721 15:459 16:172 17:422 18:916 20:585 21:4 22:188 23:8166 24:2777 25:2 27:2748 28:1 29:19 31:3474 32:37 34:86 35:287 36:4665 37:4450 38:10098 39:1283 40:423 41:4558 42:2171 43:3022 44:446 45:19784 46:4860 47:411 48:126 49:2224 50:2023 51:626 52:1306 54:276 55:1120 56:11 57:326 58:2421 59:1439 60:1175 61:3133 62:3123 63:1722 64:6299 65:2136 66:6076 67:3245 68:1501 69:4209 70:1063 71:615 72:3183 74:3033 75:1491 76:591 77:2927 78:1973 79:1789 80:2371 81:2217 82:4040 83:1448 84:2148 85:3806 86:1091 87:2488 88:1350 89:4708 90:783 91:8430 92:2824 93:3008 94:4375 95:4653 96:1456 97:316 98:944 99:808 100:68 101:1367 102:4486 103:32378 104:5361 105:816 106:913 107:2875 108:1240 109:4211 110:2298 111:4174 112:3168 113:1962 114:2271 115:2241 116:2159 117:3505 118:2950 119:2116 120:2725 121:1594 122:3009 123:2273 124:1729 125:3009 126:125 128:1600 129:972 130:1639 131:2466 132:830 133:475 134:1672 135:610 136:1610 137:1415 138:3308 139:1630 140:1825 141:1735 142:2530 143:2126 144:1732 145:646 146:2209 147:2201 148:2762 149:3103 150:1364 151:2809 152:2320 153:1314 154:9567 155:2294 156:4459 157:2281 158:1531 159:2856 160:3809 161:1962 162:4039 163:2492 164:2040 165:2629 166:1272 167:2299 168:4019 169:849 170:5561 171:1125 172:4553 173:3483 174:883 175:1357 176:3867 177:4871 178:4359 179:2306 180:3045 181:4522 182:3991 183:2828 184:2022 185:21806 186:5766 187:4941 188:4603 189:4501 190:9836 191:1566 192:11491 193:9624 194:7873 195:5831 196:3347 197:3255 198:6297 199:6078 200:8218 201:6392 202:10818 203:10523 204:4803 205:3764 206:4563 207:3998 208:4378 209:5451 210:4902 211:2777 212:5045 213:4128 214:1041 215:47 216:7291 217:3582 218:1755 219:585 220:2200 221:1308 222:1079 223:3431 End of report

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What’s Changed at NANOG and Why It Matters + MORE
by Nanog News 10 Apr '26

10 Apr '26

*** What’s Changed at NANOG and Why It Matters* ------------------------------------------------------------ *Let Us (Re)Introduce Ourselves to Your Network + Peers* *NANOG's technical focus remains as strong as ever.* What has changed is the way the community supports participation, technical exchange, and collaboration between conferences. See what else has changed or send this to a Newcomer. *READ MORE *( https://nanog.org/stories/articles/whats-changed-at-nanog-and-why-it-matter… ) *** NANOG Committee Spotlight: Election Committee* ------------------------------------------------------------ *Get Involved in NANOG — Join a NANOG Committee* The purpose of the Elections Committee is to assist the Board of Directors by conducting elections for NANOG Board positions, proposed amendments to governing documents, and to conduct any other election-related matters as directed by the NANOG Board. *MORE INFO* ( https://nanog.org/about/who-we-are/committees/elections-committee/) *** Spotlight on Compudopt: Earth Month + E-Waste Recycling* ------------------------------------------------------------ *Network upgrades generate retired hardware every year.* Through responsible IT asset disposition, those devices can be securely wiped, refurbished, and redeployed to families in need. Partner with Compudopt today for compliant device recovery and turn e-waste into digital opportunity, leading to a cleaner tomorrow! *MORE INFO *(http://www.compudopt.org/itad ) *** Don't Get Left in the Digital Dust!* ------------------------------------------------------------ *Take Advantage of Standard Rates + Register Now* Stay in the know + join your tribe. NANOG 97 will take place in Bellevue, WA, Jun. 1-3. *REGISTER NOW* (https://nanog.org/events/nanog-97/register/) *** 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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Contact needed: AS15169 Peering/GGC Escalation (Bogota Edge Exhaustion)
by cesarmeza＠superredes.co 10 Apr '26

10 Apr '26

Hello NANOG community, I apologize for reaching out here, but we have exhausted all official support channels for over two months and are dealing with a severe capacity crisis. We are looking for a direct contact or Duty Manager at Google Peering / GGC Strategy for LATAM. Our ASN: AS270075 (Super Redes SAS - Colombia) The Issue: Google's rack capacity in the Bogota metro area is completely exhausted. This was confirmed to us via a Google NOC internal bug leak (b/478722514). Because of this, our 100G PNIs have been artificially hard-capped at 10G. We had to administratively shut down the peering links to stop massive flapping and are now bleeding >15 Gbps of Google-destined traffic to paid transit. The Ignored Mitigation: We meet all volume criteria (~30 Gbps) and requested a local GGC node to mitigate this 40+ days ago (Ticket #2175456459). The request remains completely ignored with zero human response from the Edge team. The NOC refuses to provide an ETR for the physical capacity issue. If anyone from AS15169 is reading this, or if anyone can back-channel this to the right person, we desperately need a human to look at ticket #2175456459 so we can deploy this cache and restore service stability. Thank you in advance, [Cesar Meza] [Director NOC] Super Redes SAS (AS270075) Cesar Alberto Meza Seijas Director NOC Super Redes SAS T: +57 606 3495750 | E: cesarmeza(a)superredes.co (mailto:{cesarmeza@superredes.co}) www.superredes.com.co (https://www.superredes.com.co) Carrera 27 #81-57 Casa 16, Corales Pereira, Risaralda, Colombia El contenido de este correo electrónico es confidencial y está destinado únicamente al destinatario especificado en el mensaje. Está estrictamente prohibido compartir cualquier parte de este mensaje con terceros, sin el consentimiento por escrito del remitente. Si recibió este mensaje por error, responda a este mensaje y continúe con su eliminación, para que podamos asegurarnos de que tal error no ocurra en el futuro.

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Kentucky Data Link // CONTACTS?
by Evan M. Gillman 09 Apr '26

09 Apr '26

Hi All, Is there anyone on this list from Windstream that has some historical knowledge regarding the Kentucky Data Link network and potential fiber in / around Cave City, KY? Thanks again. Evan M. Gillman | transitbroker.com | P. 212.420.1222 | M. 917.664.0707

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Site Reliability Engineering - Focus of NANOG 97 + MORE
by Nanog News 08 Apr '26

08 Apr '26

*** Site Reliability Engineering - Focus of NANOG 97* ------------------------------------------------------------ *Join Us in Bellevue (Jun.1-3)* NANOG 97’s content will showcase how network operators are using SRE tools and methodologies in the real world to reduce network and application downtime and increase reliability. *SRE topics we plan to include in NANOG 97’s programming include:* * Monitoring and observability * Incident management * Capacity planning * Change management *READ MORE* ( https://nanog.org/stories/articles/site-reliability-engineering-focus-of-na… ) *REGISTER FOR N97* (https://nanog.org/events/nanog-97/) *** NANOG Committee Spotlight: Mentorship Committee* ------------------------------------------------------------ *Get Involved in NANOG — Join a NANOG Committee* The Mentorship Committee strengthens the NANOG community by delivering programs that support early‑career engagement, improve first‑time attendee experiences, and foster continuous professional mentorship and development. *MORE INFO* (https://nanog.org/outreach/nanog-mentorship-program/) *** Reminder: Submit Your Content 🎯* ------------------------------------------------------------ *Transform Your Best Idea into a NANOG Talk* If you are interested in sharing your experiences, ideas, or the latest technologies with the greater NANOG community, submit a presentation proposal including draft slides no later than Monday, April, 27. *CALL FOR CONTENT *(https://nanog.org/program/call-content/) *** Video of the Week - The Network Automation Map: Navigate Your Journey with the NAF Automation Framework* ------------------------------------------------------------ *With OpsMill, Damien Garros + Nokia, Wim Henderickx* At 1k views since our last meeting, this video is catching some eyeballs. *WATCH NOW* ( https://www.youtube.com/watch?v=MCeDVWOrnIs&list=PLO8DR5ZGla8i1P6NjMTMxvym0… ) *** 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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Spoofer Report for NANOG for Mar 2026
by CAIDA Spoofer Project 08 Apr '26

08 Apr '26

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within usa, can. Inferred improvements during Mar 2026: ASN Name Fixed-By 209179 WI-FI-DOM 2026-03-04 54256 2026-03-11 27364 ACS-INTERNET 2026-03-12 152179 2026-03-15 138915 KAOPU-HK 2026-03-16 36352 AS-COLOCROSSING 2026-03-19 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Mar 2026: ASN Name First-Spoofed Last-Spoofed 3356 LEVEL3 2016-03-06 2026-03-30 12083 WOW-INTERNET 2016-11-09 2026-03-31 14051 SUREWEST 2017-10-26 2026-03-28 22883 CONDENAST 2019-05-29 2026-03-25 21804 ACCESS-SK 2019-06-09 2026-03-31 52643 N&G Tecnologia LTDA 2019-09-24 2026-03-20 393397 LREC-LRT 2020-08-02 2026-03-23 36352 AS-COLOCROSSING 2020-10-08 2026-03-20 55016 IMPER-AS-1 2021-05-18 2026-03-29 22773 ASN-CXA-ALL-CCI-22773-RDC 2021-10-24 2026-03-25 12183 TALKIE-COMMUNICATIONS 2022-12-10 2026-03-28 400282 2023-04-27 2026-03-30 393577 SCCNET 2023-05-03 2026-03-27 394684 AS-GOLD 2024-01-17 2026-03-28 27425 ASN-IDK-27425 2024-02-21 2026-03-12 53755 IOFLOOD 2024-02-23 2026-03-28 393530 TLU 2024-05-22 2026-03-25 19935 CRRS 2024-05-29 2026-03-19 265561 LANTOINTERNET SA DE CV 2024-09-06 2026-03-26 54334 ROYA 2025-03-13 2026-03-31 273843 2025-04-02 2026-03-31 204969 AS_CIRTEL 2025-10-22 2026-03-20 32425 SKB3-ARIN-BGP 2025-12-12 2026-03-09 212238 CDNEXT 2026-02-18 2026-03-25 20162 UTDALLAS 2026-03-03 2026-03-31 35958 CCN42 2026-03-27 2026-03-27 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=usa,can&no_block… Please send any feedback or suggestions to spoofer-info(a)caida.org

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Cloudflare DNS contact?
by Betsy Schwartz 08 Apr '26

08 Apr '26

We're getting reports of users trying to log in or request 2FA emails from Cloudflare sites (ex: California DMV) but seeing errors that our well.com domain isn't recognized as valid. Well.com has been around since 1993 and our primary DNS hasn't changed since perhaps 2012. . Excerpts appended for reference. I strongly suspect these errors are related to a Cloudflare security check for valid email domains. Hoping someone here can validate or disprove this. If it's a Cloudflare issue, any contacts here? When I poke at an open cloudflare DNS server and look up the A for well.com I get a disturbing error: : server can't find well.com.well.sf.ca.us: well.sf.ca.us is an antique (but valid) A record in the sf.ca.us zone and has no business appearing here. Did something drop a period or CRLF on a list somewhere? When I query AWS and Google DNS servers, our DNS looks correct and unchanged Thank you very much for any pointers! Betsy -- Correct info: > set type=any > well.com Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: well.com Address: 23.22.72.90 well.com nameserver = ns-1783.awsdns-30.co.uk. well.com nameserver = ns-1103.awsdns-09.org. well.com nameserver = ns-805.awsdns-36.net. well.com nameserver = ns-459.awsdns-57.com. well.com origin = ns-1103.awsdns-09.org mail addr = awsdns-hostmaster.amazon.com <snip> well.com mail exchanger = 15 xmx.well.com. <snip> -- whois well.com [Querying whois.verisign-grs.com] Domain Name: WELL.COM Registry Domain ID: 4562093_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.enom.com Registrar URL: http://www.enomdomains.com Updated Date: 2020-01-24T18:46:10Z Creation Date: 1993-01-25T05:00:00Z Registry Expiry Date: 2029-01-26T05:00:00Z <snip> Name Server: NS-1103.AWSDNS-09.ORG Name Server: NS-1783.AWSDNS-30.CO.UK Name Server: NS-459.AWSDNS-57.COM Name Server: NS-805.AWSDNS-36.NET <snip>

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Anyone from Edgoo here?
by William Herrin 06 Apr '26

06 Apr '26

My ISP is your customer and you appear to be incorrectly applying strict reverse path filtering on their BGP managed link. If that's accurate, congratulations: you broke the Internet. Or at least the part of it encompassing 199.33.224.0/23. Please contact me so we can figure this out. Regards, Bill Herrin -- For hire. https://bill.herrin.us/resume/

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Operational feedback on policy redundancy
by manwar＠illinois.edu 06 Apr '26

06 Apr '26

Hello, I am a PhD student currently looking at the long-term management of network policies and intents. In studying a large-scale production dataset from a service provider, I found that over 95% of the operational intents were semantically redundant (meaning they were completely shadowed or subsumed by broader, older rules). I am trying to understand if this high level of policy bloat matches the actual experience of operators in the field: Redundancy: Is cleaning up shadowed or redundant rules a regular part of your workflow, or do they just tend to stay in the system for years once they're active? Conflicts: How often do you run into cases where multiple goals (which all seem fine on their own) accidentally create a conflict when they are enforced together over the same traffic? Resolutions: Is there a standard way you "relax" or prioritize these goals when you find they are fighting each other? Thank you for any operational insights you can share. Best regards, Mubashir Anwar University of Illinois Urbana-Champaign

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