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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 12 Apr '24

12 Apr '24

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 13 Apr, 2024 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 943717 Prefixes after maximum aggregation (per Origin AS): 360569 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 460113 Total ASes present in the Internet Routing Table: 75646 Prefixes per ASN: 12.48 Origin-only ASes present in the Internet Routing Table: 64860 Origin ASes announcing only one prefix: 26582 Transit ASes present in the Internet Routing Table: 10786 Transit-only ASes present in the Internet Routing Table: 513 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 121 Max AS path prepend of ASN (150315) 116 Prefixes from unregistered ASNs in the Routing Table: 1084 Number of instances of unregistered ASNs: 1086 Number of 32-bit ASNs allocated by the RIRs: 44105 Number of 32-bit ASNs visible in the Routing Table: 36196 Prefixes from 32-bit ASNs in the Routing Table: 184594 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 604 Number of addresses announced to Internet: 3028380800 Equivalent to 180 /8s, 129 /16s and 108 /24s Percentage of available address space announced: 81.8 Percentage of allocated address space announced: 81.8 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: 311335 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 249982 Total APNIC prefixes after maximum aggregation: 73481 APNIC Deaggregation factor: 3.40 Prefixes being announced from the APNIC address blocks: 242376 Unique aggregates announced from the APNIC address blocks: 100311 APNIC Region origin ASes present in the Internet Routing Table: 14075 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4257 APNIC Region transit ASes present in the Internet Routing Table: 1877 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 121 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9459 Number of APNIC addresses announced to Internet: 760672896 Equivalent to 45 /8s, 86 /16s and 242 /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, 131072-153913 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: 275234 Total ARIN prefixes after maximum aggregation: 124610 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 279979 Unique aggregates announced from the ARIN address blocks: 133368 ARIN Region origin ASes present in the Internet Routing Table: 19127 ARIN Prefixes per ASN: 14.64 ARIN Region origin ASes announcing only one prefix: 6955 ARIN Region transit ASes present in the Internet Routing Table: 1986 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4876 Number of ARIN addresses announced to Internet: 1269427712 Equivalent to 75 /8s, 169 /16s and 238 /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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 264820 Total RIPE prefixes after maximum aggregation: 126714 RIPE Deaggregation factor: 2.09 Prefixes being announced from the RIPE address blocks: 259545 Unique aggregates announced from the RIPE address blocks: 163305 RIPE Region origin ASes present in the Internet Routing Table: 28619 RIPE Prefixes per ASN: 9.07 RIPE Region origin ASes announcing only one prefix: 12135 RIPE Region transit ASes present in the Internet Routing Table: 3977 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11733 Number of RIPE addresses announced to Internet: 714778880 Equivalent to 42 /8s, 154 /16s and 169 /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, 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: 121743 Total LACNIC prefixes after maximum aggregation: 28914 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120013 Unique aggregates announced from the LACNIC address blocks: 49529 LACNIC Region origin ASes present in the Internet Routing Table: 11077 LACNIC Prefixes per ASN: 10.83 LACNIC Region origin ASes announcing only one prefix: 2590 LACNIC Region transit ASes present in the Internet Routing Table: 2393 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8943 Number of LACNIC addresses announced to Internet: 177216256 Equivalent to 10 /8s, 144 /16s and 27 /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: 30854 Total AfriNIC prefixes after maximum aggregation: 6141 AfriNIC Deaggregation factor: 5.02 Prefixes being announced from the AfriNIC address blocks: 41200 Unique aggregates announced from the AfriNIC address blocks: 13120 AfriNIC Region origin ASes present in the Internet Routing Table: 1818 AfriNIC Prefixes per ASN: 22.66 AfriNIC Region origin ASes announcing only one prefix: 645 AfriNIC Region transit ASes present in the Internet Routing Table: 353 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1185 Number of AfriNIC addresses announced to Internet: 105965312 Equivalent to 6 /8s, 80 /16s and 231 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9850 8743 68 CHINAMOBILE-CN China Mobile Communicati 7545 5661 777 677 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4936 4192 76 ERX-CERNET-BKB China Education and Rese 7552 3862 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3623 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 3579 498 257 BBIL-AP BHARTI Airtel Ltd., IN 45899 3289 1872 98 VNPT-AS-VN VNPT Corp, VN 24560 2774 861 372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11258 584 KIXS-AS-KR Korea Telecom, KR 4755 2200 434 196 TATACOMM-AS TATA Communications formerl 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 9868 11373 3449 AMAZON-02, US 11492 4602 305 605 CABLEONE, US 7155 4170 287 90 VIASAT-SP-BACKBONE, US 6327 3605 1320 75 SHAW, CA 22773 3526 3048 241 ASN-CXA-ALL-CCI-22773-RDC, US 174 3335 6632 829 COGENT-174, US 749 3201 54912 2453 DNIC-AS-00749, US 16625 3120 1331 2228 AKAMAI-AS, US 367 2820 3549 1342 DNIC-ASBLK-00306-00371, US 396982 2763 3641 413 GOOGLE-CLOUD-PLATFORM, 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 7711 1709 144 UNI2-AS, ES 39891 4758 286 60 ALJAWWALSTC-AS, SA 20940 3872 3396 128 AKAMAI-ASN1, NL 9009 3277 284 1600 M247, RO 12389 2978 2303 901 ROSTELECOM-AS, RU 8551 2635 368 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 34984 2349 364 583 TELLCOM-AS, TR 13188 1607 100 26 TRIOLAN, UA 8452 1529 1852 14 TE-AS TE-AS, EG 44477 1529 100 726 STARK-INDUSTRIES, GB 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 12400 3321 487 UNINET, MX 10620 3532 497 886 Telmex Colombia S.A., CO 13999 2515 346 666 Mega Cable, S.A. de C.V., MX 11830 2004 369 64 Instituto Costarricense de Electricidad 28573 1341 2315 247 Claro NXT Telecomunicacoes Ltda, BR 3816 1312 788 199 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1152 177 428 Techtel LMDS Comunicaciones Interactiva 6503 1137 346 478 Axtel, S.A.B. de C.V., MX 6147 1081 369 22 Telefonica del Peru S.A.A., PE 26615 1067 2503 52 TIM SA, BR 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 1549 545 28 RAYA-AS, EG 24863 1502 389 20 LINKdotNET-AS, EG 36992 1367 1519 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 29571 1158 75 78 ORANGE-COTE-IVOIRE, CI 36935 935 521 42 Vodafone-, EG 6713 554 1861 34 IAM-AS, MA 15399 529 56 54 WANANCHI-, KE 36914 485 82 3 KENET-AS, KE 24757 436 73 5 EthioNet-AS, ET 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 8151 12400 3321 487 UNINET, MX 16509 9868 11373 3449 AMAZON-02, US 9808 9850 8743 68 CHINAMOBILE-CN China Mobile Communicati 12479 7711 1709 144 UNI2-AS, ES 7545 5661 777 677 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4936 4192 76 ERX-CERNET-BKB China Education and Rese 39891 4758 286 60 ALJAWWALSTC-AS, SA 11492 4602 305 605 CABLEONE, US 7155 4170 287 90 VIASAT-SP-BACKBONE, US 20940 3872 3396 128 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 9850 9782 CHINAMOBILE-CN China Mobile Communications Grou 12479 7711 7567 UNI2-AS, ES 16509 9868 6419 AMAZON-02, US 7545 5661 4984 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4936 4860 ERX-CERNET-BKB China Education and Research Net 39891 4758 4698 ALJAWWALSTC-AS, SA 7155 4170 4080 VIASAT-SP-BACKBONE, US 11492 4602 3997 CABLEONE, US 7552 3862 3842 VIETEL-AS-AP Viettel Group, VN 20940 3872 3744 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 65536 DOCUMENT 5.102.30.0/24 65512 -Private Use AS-, ZZ 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, 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 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 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 Transit: 174 COGENT-174, US 27.0.192.0/22 Origin: 138415 YANCYLIMITED-AS-HK Yancy Limited, HK 27.0.192.0/22 Transit: 51847 NEAROUTE, HK 27.0.192.0/24 Origin: 138195 MOACKCOLTD-AS-AP MOACK.Co.LTD, KR 27.0.192.0/24 Transit: 3786 LGDACOM LG DACOM Corporation, KR 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 /10:37 /11:95 /12:297 /13:583 /14:1195 /15:2071 /16:13298 /17:8257 /18:13749 /19:24852 /20:43928 /21:51662 /22:111187 /23:98695 /24:573058 /25:723 /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 6830 7711 UNI2-AS, ES 8151 6423 12400 UNINET, MX 11492 3515 4602 CABLEONE, US 39891 3440 4758 ALJAWWALSTC-AS, SA 6327 3402 3605 SHAW, CA 7155 3114 4170 VIASAT-SP-BACKBONE, US 22773 2614 3526 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2148 2494 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2138 3532 Telmex Colombia S.A., CO 8551 2111 2635 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1643 2:1499 3:322 4:6 5:4532 6:161 7:6 8:1516 9:1 11:172 12:1463 13:379 14:2398 15:318 16:209 17:369 18:758 20:358 21:4 22:188 23:6683 24:2714 25:2 27:2559 29:19 31:2691 32:48 34:61 35:127 36:2280 37:4469 38:7190 39:891 40:123 41:4074 42:981 43:2369 44:318 45:17083 46:4427 47:306 49:1946 50:1925 51:573 52:1586 54:313 55:998 56:5 57:166 58:1893 59:1247 60:1033 61:2587 62:2690 63:1894 64:5531 65:2317 66:4680 67:3002 68:1316 69:4097 70:1194 71:577 72:2904 74:2595 75:1549 76:630 77:2430 78:1849 79:2490 80:2184 81:1957 82:1553 83:1317 84:1652 85:3138 86:841 87:2265 88:1244 89:4053 90:677 91:8099 92:2211 93:2666 94:3672 95:4134 96:1295 97:315 98:1042 99:743 100:79 101:1184 102:3116 103:32528 104:4855 105:636 106:942 107:2757 108:1124 109:4084 110:2137 111:3280 112:2075 113:1592 114:1792 115:2031 116:1891 117:2621 118:2380 119:1965 120:1811 121:1327 122:2680 123:2229 124:1621 125:2884 126:32 128:1489 129:937 130:1114 131:1858 132:804 133:410 134:1717 135:318 136:942 137:1061 138:2843 139:1553 140:1393 141:1365 142:1587 143:1486 144:1010 145:349 146:2061 147:1842 148:2460 149:2562 150:1030 151:1342 152:2012 153:523 154:6478 155:1446 156:2313 157:1698 158:1114 159:2325 160:2627 161:1620 162:3580 163:1719 164:1637 165:2133 166:1172 167:1802 168:3943 169:797 170:4779 171:1019 172:3821 173:3038 174:908 175:1203 176:3630 177:4697 178:3583 179:2263 180:2354 181:3687 182:3429 183:1804 184:2273 185:20715 186:4996 187:4541 188:4046 189:4165 190:9322 191:1491 192:10947 193:9070 194:7484 195:5275 196:3123 197:2475 198:6029 199:7620 200:8058 201:6315 202:10477 203:10187 204:4568 205:3741 206:4490 207:3495 208:4155 209:5067 210:4653 211:2580 212:4294 213:3417 214:1082 215:50 216:6771 217:2816 218:1362 219:580 220:2044 221:1033 222:880 223:2239 End of report

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Anyone got a contact at OpenAI. They have a spider problem.
by John Levine 12 Apr '24

12 Apr '24

As I think I have mentioned before, I have the world's lamest content farm at https://www.web.sp.am/. Click on a link or two and you'll get the idea. Unfortunately, GPTBot has found it and has not gotten the idea. It has fetched over 3 million pages today. Before someone tells me to fix my robots.txt, this is a content farm so rather than being one web site with 6,859,000,000 pages, it is 6,859,000,000 web sites each with one page. Of those 3 million page fetches, 1.8 million were for robots.txt. It's not like it's hard to figure out what's going on since the pages all look nearly the same, and they're all on the same IP address with the same wildcard SSL certificate. Amazon's spider got stuck there a month or two ago but fortunately I was able to find someone to pass the word and it stopped. Got any contacts at OpenAI? R's, John PS: If you were wondering what they're using to train GPT-5, well, now you know.

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Attn Access ISPs - FCC BB Labels (machine-readable standards)
by Livingood, Jason 11 Apr '24

11 Apr '24

Yesterday the FCC broadband label order is in effect – so all ISPs need to publish them. Oct 10, 2024 is the deadline to produce machine-readable BB labels. I have kicked off an effort via the BITAG to standardize the format of these labels. See https://github.com/jlivingood/Broadband-Labels<https://urldefense.com/v3/__https:/github.com/jlivingood/Broadband-Labels__…> for some initial ideas. If you’d like to participate – because you are an ISP publishing labels or an org/researcher that will be importing/consuming/comparing labels – you may wish to participate. There’s no fee or docs to sign to do so, and your participation does noy convey endorsement of the final work product. IF INTERESTED – email me off-list and I will provide details. Thanks! Jason

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Comcast Voice Routing Contact?
by Nick Garrett 11 Apr '24

11 Apr '24

Apologies for cross-post - no luck using the VoiceOps list. Sent to VO 04/10: Hello, we have a fun issue we are attempting to troubleshoot with an end user having problems reaching local businesses utilizing Comcast (unsure if the end product is POTS over Coax or VoiceEdge). SPID: Comcast IP Phone/1 The calls are not originating via their usual routing on their receiving end and some alternative routing seems to be in place where they are failing to cell phones. I'm checking to see if any Comcast folks are lurking that could potentially help or shed light on what is occurring or what the problem seems to be. We tried to suggest to our end user to have the local businesses reach out to Comcast - going through tier 1 support, rolling a truck, etc. It's still an issue (surprisingly) as I'm not sure this could be solved by a field technician if it could even be communicated well enough upstream to who it would matter to. We are attempting to go the usual channels now with the carrier we are originating the calls from and seeing if they can engage further engineering upstream but I have a feeling this will fizzle out. The losing carrier we ported this customer from last year is of no relation to Comcast (at least on the outside), but I'm unsure if they're still in the call stack or if there was some sharing of resources on that end when they were still housed there. **Update 04/11 - origination route to term partner support path is not looking hot👎 Region of concern is northern Illinois Please reach out off-list if you can be of assistance and I can share more information. Thanks!

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N91 Location: Things To Do + See in Kansas City, MO + Hackathon + More
by Nanog News 11 Apr '24

11 Apr '24

*Things to Do + See in Kansas * *Check Out Landmark Attractions While Attending NANOG 91* *Why it's worth your time: *NANOG invites you to join us for our upcoming virtual and in-person meeting, NANOG 91, in Kansas City, MO, 10 - 12 June at Loews Kansas City Hotel. When not absorbing the latest trends in technology or networking with tech leaders — why not explore this jazzy city, where the roots (and fountains) run deep? We've done the work. Check out NANOG's hit list, and then curate your own! *READ MORE * <https://nanog.org/stories/articles/things-to-do-see-in-kansas-city/> *Hackathon 91 - Register Now! * *Hack Your Way to New Friends, Networking, + Fun!* *Friday, 31 May, *1:00pm Central - Welcome / Introduction / Infrastructure tutorial / Team Formation via Zoom *Sunday, 09 June,* 9:00am - 5:00pm Central - Competition Time *Theme: *Put your sleuthing skills to the test! - Ft. Problem-Solving/Troubleshooting Competitions *MORE INFO * <https://nanog.org/events/nanog-91-hackathon/> *Sponsors: Join our NANOG Showcase!* *Your Belongs Logo Here! * Check out our newest offering to connect and network with NANOG attendees over a 3-hour time block in high traffic areas. Only $8k per booth with a branded table-top banner, provided by NANOG! Contact Shawn Winstead swinstead(a)nanog.org to learn more. *NANOG Talk of the Week! * *AI Data Center Networks Michal Styszynski, Mahesh Subramaniam - Juniper Networks * *Why it's worth your time:* The modern AI data center workloads bring new requirements and design best practices for the network infrastructure. This session will present the new GPU to GPU connect training cluster and inference fabric design options. The session will cover fabric-level load balancing aspects, ROCEv2/DCQCN, and DC fabric traffic engineering. *WATCH NOW * <https://www.youtube.com/watch?v=rVW6N-ECyq0>

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IANA AS Numbers Registry Update
by David Dong 10 Apr '24

10 Apr '24

Hi, The IANA AS Numbers registry has been updated to reflect the allocation of the following block to ARIN: 401309-402332 Assigned by ARIN 2024-04-10 You can find the registry at: https://www.iana.org/assignments/as-numbers/ The allocation was made in accordance with the Policy for Allocation of ASN Blocks to Regional Internet Registries: https://www.icann.org/resources/pages/global-policy-asn-blocks-2010-09-21-en Best regards, David Dong IANA Services Sr. Specialist

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Serious Bug in Cisco's 6500 & 6800 Platforms
by Mark Tinka 09 Apr '24

09 Apr '24

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdviso… Mark.

1 0

Spoofer Report for NANOG for Mar 2024
by CAIDA Spoofer Project 08 Apr '24

08 Apr '24

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 2024: ASN Name Fixed-By 11055 MIDCONTINENT-COMMUNICATIONS 2024-03-01 394195 CLEARNETWORX 2024-03-29 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Mar 2024: ASN Name First-Spoofed Last-Spoofed 3356 LEVEL3 2016-03-06 2024-03-02 209 CENTURYLINK-US-LEGACY-QWEST 2016-08-16 2024-03-29 27364 ACS-INTERNET 2016-09-27 2024-03-26 20412 CLARITY-TELECOM 2016-09-30 2024-03-30 46573 GLOBAL-FRAG-NETWORKS 2019-05-16 2024-03-29 46997 2021-12-22 2024-03-29 12183 TALKIE-COMMUNICATIONS 2022-12-10 2024-03-29 3701 NERONET 2023-04-18 2024-03-29 400282 2023-04-27 2024-03-28 202400 2023-05-08 2024-03-31 394684 WISPERNET 2024-01-17 2024-03-28 55 UPENN 2024-01-30 2024-03-22 25853 ELJY30540 2024-02-01 2024-03-26 27425 ASN-IDK-27425 2024-02-21 2024-03-23 54256 STONE-RLM-AZER 2024-02-22 2024-03-11 33544 WILINE 2024-03-28 2024-03-28 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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Netskrt - ISP-colo CDN
by Aaron Gould 07 Apr '24

07 Apr '24

Anyone out there using Netskrt CDN? I mean, installed in your network for content delivery to your customers. I understand Netskrt provides caching for some well known online video streaming services... just wondering if there are any network operators that have worked with Netskrt and deployed their caching servers in your networks and what have you thought about it? What Internet uplink savings are you seeing? Netskrt - https://www.netskrt.io/ -- -Aaron

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TFTP over anycast
by Javier Gutierrez 06 Apr '24

06 Apr '24

Hi, I'm working on some DR design and we want to not only have this site as a DR but also performing some active/active for some of the services we hosts and I was wondering if someone had some experience with using anycast for TFTP or DHCP services? What are some of the pains/challenges you experienced and things we should lookout for? Any input is greatly appreciated. Kind regards, Javier Gutierrez

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