- NANOG - lists.nanog.org

Cogent abuse?
by David Hubbard 18 May '26

18 May '26

Anyone know of a backup way to contact Cogent abuse? Apparently their normal address routes emails directly into a php script, which sounds perfectly safe, but that is now broken: This is the mail system at host abuse01-hhc.sys.cogentco.com. ... <report(a)abuse01-hhc.sys.cogentco.com<mailto:report@abuse01-hhc.sys.cogentco.com>> (expanded from <report(a)abuse.sys.cogentco.com<mailto:report@abuse.sys.cogentco.com>>): Command died with status 1: "/usr/bin/php" Thanks

3 2

verifying the entire AS path against the customer cone on a route server
by Martin Tonusoo 17 May '26

17 May '26

Hi. I was working on a route server configuration for BIRD and while it's commonplace and often publicly documented [1, 2] that a route server checks that the origin AS number is in the as-set, then I didn't find a single route server documentation which states that the entire AS-path is checked. Same is true for software [3] used for building the route servers configuration. I mean that in principle, route servers running BIRD and checking that the origin AS is in as-set may call a similar function in their ingress filters: function origin_as_in_asset(int peer_as) -> bool { case peer_as { # FOO (as-set: AS-FOO) # Content of AS-FOO_as_numbers.conf file: # [65536,65537, # 65538,65539] 64501: return bgp_path.last ~ include "/etc/bird/AS-FOO_as_numbers.conf";; # BAR (as-set: AS-BAR) 64502: return bgp_path.last ~ include "/etc/bird/AS-BAR_as_numbers.conf";; else: return false; } }; A stricter approach checking the entire AS path would be something like this: function as_in_asset(int peer_as) -> bool { case peer_as { # FOO (as-set: AS-FOO) 64501: for int asn in bgp_path do { if asn !~ include "/etc/bird/AS-FOO_as_numbers.conf"; then { #printn "Invalid AS number: ", asn, "; "; return false; } } # BAR (as-set: AS-BAR) 64502: for int asn in bgp_path do { if asn !~ include "/etc/bird/AS-BAR_as_numbers.conf"; then { #printn "Invalid AS number: ", asn, "; "; return false; } } # Exception. For AS 64503 check only the origin AS number. 64503: return bgp_path.last ~ include "/etc/bird/AS-BAZ_as_numbers.conf";; else: return false; } return true; }; For example, the second approach would have rejected those two route leaks: martin@lab-svr:~$ # AS 21217 announces a prefix from its upstream AS 25091 to its other upstream AS 47176 which accepts the prefix martin@lab-svr:~$ # 91.206.52.252 is rs1 of SwissIX martin@lab-svr:~$ curl -s https://data.ris.ripe.net/rrc20/2026.01/updates.20260102.1440.gz | bgpdump -m -v - | awk -F '|' '$4 == "91.206.52.252" && $7 == "47176 21217 25091 3303 50350"' BGP4MP|1767364961|A|91.206.52.252|42476|193.104.238.0/24|47176 21217 25091 3303 50350|IGP|91.206.52.39|0|0||AG|50350 193.104.238.209| martin@lab-svr:~$ martin@lab-svr:~$ # AS 56635 announces a prefix from its upstream AS 12778 to its other upstream AS 3212 which accepts the prefix martin@lab-svr:~$ curl -s https://data.ris.ripe.net/rrc20/2026.01/updates.20260111.1950.gz | bgpdump -m -v - | awk -F '|' '$4 == "91.206.52.252" && $7 == "21215 3212 56635 12778 197944"' BGP4MP|1768161244|A|91.206.52.252|42476|91.230.90.0/24|21215 3212 56635 12778 197944|IGP|91.206.52.96|0|0||NAG|| martin@lab-svr:~$ Or those ones, which seem to be a typo in AS path prepending: martin@lab-svr:~$ curl -s https://data.ris.ripe.net/rrc20/2026.01/updates.20260110.2020.gz | bgpdump -m -v - | awk -F '|' '$4 == "91.206.52.252" && $7 == "24961 50873 41451 45415 41451"' BGP4MP|1768076675|A|91.206.52.252|42476|195.43.80.0/23|24961 50873 41451 45415 41451|IGP|91.206.52.217|0|100030|24961:4 24961:100 24961:200 24961:300|NAG|41451 185.46.172.254| BGP4MP|1768076675|A|91.206.52.252|42476|195.43.80.0/23|24961 50873 41451 45415 41451|IGP|91.206.53.33|0|100030|24961:4 24961:100 24961:200 24961:300|NAG|41451 185.46.172.254| BGP4MP|1768076675|A|91.206.52.252|42476|195.43.80.0/23|24961 50873 41451 45415 41451|IGP|91.206.52.217|0|100030|24961:4 24961:100 24961:200 24961:300 24961:9001|NAG|41451 185.46.172.254| martin@lab-svr:~$ Performance-wise this for-loop approach would take around 90 us per prefix if the AS path contains excessive 32 AS numbers and the as-set file contains 100k AS numbers. Or 8 - 10 us per prefix if the AS path contains 10 AS numbers and the as-set file contains 1k AS numbers. I tested using the clock_gettime() in BIRD version 3.2.1. In summary, I simply wanted to share this idea. Perhaps such stricter checking is applicable for small and regional exchanges. However, it requires that both route servers use BIRD, as to my knowledge, OpenBGPD or any NOS like Junos does not support checking each AS path element against some dataset. Also, wider adoption of ASPA on route servers would prevent such route leaks. [1] https://www.swissix.ch/resources/route-server-guide/ [2] https://www.lonap.net/tech/route-servers2#filterpolicy [3] https://github.com/pierky/arouteserver Martin

1 0

Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 15 May '26

15 May '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 16 May, 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: 1050574 Prefixes after maximum aggregation (per Origin AS): 402256 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 517291 Number of IPv4 prefixes with a valid ROA: 644358 Number of IPv4 prefixes with an invalid ROA: 1331 Number of IPv4 prefixes with no ROA: 404885 Total ASes present in the Internet Routing Table: 78504 Prefixes per ASN: 13.38 Origin-only ASes present in the Internet Routing Table: 67470 Origin ASes announcing only one prefix: 27450 Transit ASes present in the Internet Routing Table: 11034 Transit-only ASes present in the Internet Routing Table: 580 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: 1184 Number of instances of unregistered ASNs: 1214 Number of 32-bit ASNs allocated by the RIRs: 49776 Number of 32-bit ASNs visible in the Routing Table: 40632 Prefixes from 32-bit ASNs in the Routing Table: 230380 Number of bogon 32-bit ASNs visible in the Routing Table: 97 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 454 Number of addresses announced to Internet: 3104350720 Equivalent to 185 /8s, 8 /16s and 162 /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: 343349 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 288045 Total APNIC prefixes after maximum aggregation: 83418 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 274456 Unique aggregates announced from the APNIC address blocks: 107778 APNIC Region origin ASes present in the Internet Routing Table: 15226 APNIC Prefixes per ASN: 18.03 APNIC Region origin ASes announcing only one prefix: 4669 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: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10798 Number of APNIC addresses announced to Internet: 748410752 Equivalent to 44 /8s, 155 /16s and 215 /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: 303824 Total ARIN prefixes after maximum aggregation: 136822 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303186 Unique aggregates announced from the ARIN address blocks: 147797 ARIN Region origin ASes present in the Internet Routing Table: 19422 ARIN Prefixes per ASN: 15.61 ARIN Region origin ASes announcing only one prefix: 7103 ARIN Region transit ASes present in the Internet Routing Table: 1910 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5577 Number of ARIN addresses announced to Internet: 1347671296 Equivalent to 80 /8s, 83 /16s and 213 /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: 290466 Total RIPE prefixes after maximum aggregation: 143468 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293612 Unique aggregates announced from the RIPE address blocks: 191503 RIPE Region origin ASes present in the Internet Routing Table: 29489 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12220 RIPE Region transit ASes present in the Internet Routing Table: 4001 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: 13413 Number of RIPE addresses announced to Internet: 734146176 Equivalent to 43 /8s, 194 /16s and 46 /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: 130062 Total LACNIC prefixes after maximum aggregation: 30829 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 124491 Unique aggregates announced from the LACNIC address blocks: 50325 LACNIC Region origin ASes present in the Internet Routing Table: 11405 LACNIC Prefixes per ASN: 10.92 LACNIC Region origin ASes announcing only one prefix: 2725 LACNIC Region transit ASes present in the Internet Routing Table: 2568 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9450 Number of LACNIC addresses announced to Internet: 169717760 Equivalent to 10 /8s, 29 /16s and 176 /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: 36993 Total AfriNIC prefixes after maximum aggregation: 7030 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 54375 Unique aggregates announced from the AfriNIC address blocks: 19501 AfriNIC Region origin ASes present in the Internet Routing Table: 2031 AfriNIC Prefixes per ASN: 26.77 AfriNIC Region origin ASes announcing only one prefix: 733 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: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1394 Number of AfriNIC addresses announced to Internet: 104202752 Equivalent to 6 /8s, 54 /16s and 2 /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 13975 8946 106 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5002 4192 74 ERX-CERNET-BKB China Education and Resear 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4552 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4065 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3723 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3541 887 178 CMNET-JIANGSU-AP China Mobile communicati 17561 3430 216 609 LCS-AS-AP LARUS Limited, HK 45899 3378 1868 100 VNPT-AS-VN VNPT Corp, VN 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 14968 41325 5684 AMAZON-02 - Amazon.com, Inc., US 22773 4795 3116 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3342 4865 506 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2912 222 913 AS-COLOCROSSING - HostPapa, US 7029 2635 2556 896 WINDSTREAM - Windstream Communications LL 30036 2604 359 477 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 7128 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3917 360 2320 M247, RO 20940 3799 3389 109 AKAMAI-ASN1, NL 12389 3154 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2794 205 2065 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1690 1852 14 TE-AS TE-AS, EG 203020 1659 252 830 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 12745 3254 632 UNINET, MX 10620 3434 450 1103 Telmex Colombia S.A., CO 13999 2360 498 345 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1367 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1228 371 22 INTEGRATEL PERU S.A.A., PE 22884 1074 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 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 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1272 389 16 LINKdotNET-AS, EG 36935 1262 523 45 Vodafone-, EG 36903 1231 555 97 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1076 70 18 ORANGE-COTE-IVOIRE, CI 328608 607 56 164 Africa-on-Cloud-AS, ZA 20011 589 155 220 NTT-DATA-Inc, ZA 36914 555 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 14968 41325 5684 AMAZON-02 - Amazon.com, Inc., US 9808 13975 8946 106 CHINAMOBILE-CN China Mobile Communication 8151 12745 3254 632 UNINET, MX 12479 7128 1711 149 UNI2-AS, ES 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5002 4192 74 ERX-CERNET-BKB China Education and Resear 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 22773 4795 3116 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 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 13975 13869 CHINAMOBILE-CN China Mobile Communications Grou 8151 12745 12113 UNINET, MX 12479 7128 6979 UNI2-AS, ES 7545 5884 5402 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5002 4928 ERX-CERNET-BKB China Education and Research Net 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4552 4527 FPT-AS-AP FPT Telecom Company, VN 22773 4795 4427 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4065 4037 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 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 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 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 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 /10:39 /11:95 /12:297 /13:581 /14:1185 /15:2102 /16:13624 /17:8365 /18:13424 /19:25712 /20:46955 /21:52939 /22:113779 /23:108675 /24:662082 /25:690 /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 6964 12745 UNINET, MX 12479 6065 7128 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3718 SHAW - Shaw Communications, CA 11492 3468 4592 CABLEONE - CABLE ONE, INC., US 22773 3064 4795 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2713 14968 AMAZON-02 - Amazon.com, Inc., US 30036 2258 2604 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2238 3434 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2545 2:2034 3:1004 4:5 5:5115 6:201 7:6 8:1491 9:59 11:172 12:1151 13:703 14:2739 15:466 16:209 17:443 18:915 20:591 21:4 22:188 23:8344 24:2775 25:2 27:2746 28:1 29:19 31:3541 32:37 34:86 35:286 36:4791 37:4442 38:9673 39:1300 40:441 41:4556 42:2192 43:3139 44:452 45:19833 46:4871 47:415 48:129 49:2227 50:2012 51:730 52:1327 54:288 55:1109 56:11 57:326 58:2417 59:1431 60:1176 61:3156 62:3113 63:1690 64:6395 65:2153 66:6135 67:3270 68:1512 69:4227 70:1062 71:610 72:3197 74:3066 75:1503 76:602 77:2951 78:2052 79:1792 80:2346 81:2252 82:4148 83:1457 84:2160 85:3839 86:1095 87:2635 88:1341 89:4774 90:796 91:8455 92:2785 93:3031 94:4407 95:4736 96:1445 97:310 98:949 99:836 100:70 101:1366 102:4566 103:32400 104:5394 105:850 106:902 107:2949 108:1282 109:4268 110:2285 111:4187 112:3189 113:1989 114:2389 115:2235 116:2097 117:3489 118:2978 119:2075 120:2760 121:1593 122:3021 123:2289 124:1725 125:3036 126:158 128:1573 129:982 130:1672 131:2492 132:887 133:486 134:1729 135:616 136:1479 137:1431 138:3393 139:1618 140:1834 141:1749 142:2575 143:2054 144:1782 145:638 146:2193 147:2249 148:2787 149:3161 150:1363 151:2906 152:2342 153:1604 154:9550 155:2299 156:5130 157:2323 158:1580 159:2873 160:3827 161:1971 162:4081 163:2586 164:2426 165:2672 166:1287 167:2317 168:4033 169:866 170:5608 171:1138 172:4779 173:3469 174:885 175:1354 176:3956 177:5055 178:4396 179:2390 180:3062 181:4564 182:4020 183:2830 184:2019 185:21907 186:6176 187:5060 188:4519 189:4535 190:9929 191:1999 192:11529 193:9648 194:7897 195:5831 196:3369 197:3228 198:6301 199:6061 200:8286 201:6407 202:10797 203:10507 204:4802 205:3762 206:4443 207:4009 208:4366 209:5490 210:4901 211:2782 212:5092 213:4116 214:1042 215:47 216:7302 217:3605 218:1763 219:584 220:2188 221:1318 222:1085 223:3467 End of report

1 0

Does SOA expire for root matters?
by Anurag Bhatia 13 May '26

13 May '26

Hello everyone Was wondering if anyone who has worked across root servers ops could answer about the expire value in SOA record: dig @a.root-servers.net. . soa +short a.root-servers.net. nstld.verisign-grs.com. 2026050800 1800 900 604800 86400 So 604800 (1 week) would actually make the DNS replicas to stop resolving if disconnected for an extended period of over a week from their master? Unsure of tech root operators use to replicate zone (if other than traditional zone transfers) but many of auth DNS providers these days use database backend and thus in their case primary is DB primary, secondaries are DB replicas but from DNS software point of view all are just the masters and expire value is just ignored. Is that also true for some or all or none of the root DNS servers? Thanks. -- Anurag Bhatia anuragbhatia.com

5 6

Microsoft MCC ASN
by Karl Morin 12 May '26

12 May '26

Hello NANOG community, Hopefully someone from the Microsoft MCC (connected cache) team is part of this mailing list. We have been fighting for months with Microsoft to get them to accept AS401485 as a valid ASN to host a caching server. However, Microsoft still doesn't recognize this ASN as part of their valid ASN range and claims we need to pay Azure support to get this resolved which simply doesn't make sense in this context. This is quite ironic due to the integration of PeeringDB, which has this ASN listed and verified. [image: image.png] Best regards, Karl -- *Karl Morin* *CTO - Directeur des technologies*

1 0

"Peering Router"
by Mike Hammett 12 May '26

12 May '26

Not that we have expected everyone we talked to would join our IX, but the answer that some gave puzzled me. There have been a few variations of "We don't have a peering router in that market." All routers peer, so what does that mean to you? How do people use that term? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com

9 11

Need Zayo to fix a PTR
by Giorgio Bonfiglio 10 May '26

10 May '26

Soneone in Zayo forgot a little “.” after “zayo.com <http://zayo.com/>” in a DNS zone and this is a/ messing up the formatting of a very legacy mtr report I run and b/ messing up with my OCD: ❯ host 2001:438:ffff::407d:1f69 9.6.f.1.d.7.0.4.0.0.0.0.0.0.0.0.0.0.0.0.f.f.f.f.8.3.4.0.1.0.0.2.ip6.arpa domain name pointer ae11.er1.ams1.nl.zip.zayo.com.d.7.0.4.0.0.0.0.0.0.0.0.0.0.0.0.f.f.f.f.8.3.4.0.1.0.0.2.ip6.arpa. After adding the “.” it will become: 9.6.f.1.d.7.0.4.0.0.0.0.0.0.0.0.0.0.0.0.f.f.f.f.8.3.4.0.1.0.0.2.ip6.arpa domain name pointer ae11.er1.ams1.nl.zip.zayo.com. I’ll offer a beer to whoever fixes this. [as a side note, are PTRs in large network still really manually managed?] Thanks! Giorgio -- www: grg.pw email: me(a)grg.pw mobile: +44 7716 604314 / +39 393 1049073

1 0

Geolocation and OfficeDepot.com
by SynSeer 10 May '26

10 May '26

Greetings, We've been struggling with incorrect geolocation for an IPv4 network we've been leasing for about five months. Our customers can't access officedepot.com because some database thinks the IP address is in Ontario, Canada. We have a public geofeed published and ARIN comment on the prefix to utilize the feed. We just can't seem to figure out where the remaining references to Canada are coming from. We've checked Maxmind, IPinfo, DB-IP, IP2Location, BigDataCloud, FraudLogix, and several others and they are resolving correctly. Does anyone have a contact with OfficeDepot to determine which database they are using for this lookup or other ideas to resolve this issue? Thanks! Cory

6 6

Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 08 May '26

08 May '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 09 May, 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: 1049467 Prefixes after maximum aggregation (per Origin AS): 401933 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 516952 Number of IPv4 prefixes with a valid ROA: 639984 Number of IPv4 prefixes with an invalid ROA: 1389 Number of IPv4 prefixes with no ROA: 408094 Total ASes present in the Internet Routing Table: 78491 Prefixes per ASN: 13.37 Origin-only ASes present in the Internet Routing Table: 67454 Origin ASes announcing only one prefix: 27442 Transit ASes present in the Internet Routing Table: 11037 Transit-only ASes present in the Internet Routing Table: 583 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: 1020 Number of instances of unregistered ASNs: 1050 Number of 32-bit ASNs allocated by the RIRs: 49709 Number of 32-bit ASNs visible in the Routing Table: 40600 Prefixes from 32-bit ASNs in the Routing Table: 229715 Number of bogon 32-bit ASNs visible in the Routing Table: 103 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 427 Number of addresses announced to Internet: 3104158720 Equivalent to 185 /8s, 5 /16s and 180 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 342211 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 288180 Total APNIC prefixes after maximum aggregation: 83330 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 274270 Unique aggregates announced from the APNIC address blocks: 107770 APNIC Region origin ASes present in the Internet Routing Table: 15217 APNIC Prefixes per ASN: 18.02 APNIC Region origin ASes announcing only one prefix: 4657 APNIC Region transit ASes present in the Internet Routing Table: 2016 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10786 Number of APNIC addresses announced to Internet: 748712832 Equivalent to 44 /8s, 160 /16s and 115 /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: 303900 Total ARIN prefixes after maximum aggregation: 136757 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303191 Unique aggregates announced from the ARIN address blocks: 147687 ARIN Region origin ASes present in the Internet Routing Table: 19446 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1918 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5571 Number of ARIN addresses announced to Internet: 1347838976 Equivalent to 80 /8s, 86 /16s and 100 /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: 290329 Total RIPE prefixes after maximum aggregation: 143328 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293587 Unique aggregates announced from the RIPE address blocks: 191454 RIPE Region origin ASes present in the Internet Routing Table: 29478 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12213 RIPE Region transit ASes present in the Internet Routing Table: 3985 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13408 Number of RIPE addresses announced to Internet: 733420160 Equivalent to 43 /8s, 183 /16s and 26 /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: 128887 Total LACNIC prefixes after maximum aggregation: 30888 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123293 Unique aggregates announced from the LACNIC address blocks: 50285 LACNIC Region origin ASes present in the Internet Routing Table: 11400 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2725 LACNIC Region transit ASes present in the Internet Routing Table: 2565 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9444 Number of LACNIC addresses announced to Internet: 169720064 Equivalent to 10 /8s, 29 /16s and 185 /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: 37151 Total AfriNIC prefixes after maximum aggregation: 7009 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 54699 Unique aggregates announced from the AfriNIC address blocks: 19386 AfriNIC Region origin ASes present in the Internet Routing Table: 2025 AfriNIC Prefixes per ASN: 27.01 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 387 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: 1391 Number of AfriNIC addresses announced to Internet: 104270080 Equivalent to 6 /8s, 55 /16s and 9 /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 13948 8945 105 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5007 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4538 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4069 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3721 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3536 887 178 CMNET-JIANGSU-AP China Mobile communicati 17561 3460 218 595 LCS-AS-AP LARUS Limited, HK 45899 3374 1868 100 VNPT-AS-VN VNPT Corp, VN 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 14934 41296 5702 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4644 308 1053 CABLEONE - CABLE ONE, INC., US 7155 3867 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3719 1305 75 SHAW - Shaw Communications, CA 396982 3335 4865 504 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2644 2558 920 WINDSTREAM - Windstream Communications LL 30036 2612 359 455 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 7184 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3901 359 2306 M247, RO 20940 3798 3389 109 AKAMAI-ASN1, NL 12389 3160 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2772 202 2044 CDNEXT, GB 34984 2499 368 588 TELLCOM-AS, TR 8452 1712 1852 17 TE-AS TE-AS, EG 203020 1661 252 831 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 12765 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2419 506 350 Mega Cable, S.A. de C.V., MX 11830 1934 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1227 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1273 389 16 LINKdotNET-AS, EG 36935 1237 520 41 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 565 53 159 Africa-on-Cloud-AS, ZA 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 14934 41296 5702 AMAZON-02 - Amazon.com, Inc., US 9808 13948 8945 105 CHINAMOBILE-CN China Mobile Communication 8151 12765 3266 636 UNINET, MX 12479 7184 1711 149 UNI2-AS, ES 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5007 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 3116 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4644 308 1053 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 13948 13843 CHINAMOBILE-CN China Mobile Communications Grou 8151 12765 12129 UNINET, MX 12479 7184 7035 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5007 4932 ERX-CERNET-BKB China Education and Research Net 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4538 4512 FPT-AS-AP FPT Telecom Company, VN 22773 4785 4419 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4069 4041 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 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 395476 UNALLOCATED 12.36.194.0/24 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 /10:39 /11:95 /12:297 /13:582 /14:1187 /15:2099 /16:13633 /17:8377 /18:13424 /19:25706 /20:46954 /21:52965 /22:114078 /23:108326 /24:660982 /25:693 /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 6972 12765 UNINET, MX 12479 6121 7184 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3510 4644 CABLEONE - CABLE ONE, INC., US 6327 3499 3719 SHAW - Shaw Communications, CA 22773 3058 4785 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2822 3867 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2689 14934 AMAZON-02 - Amazon.com, Inc., US 30036 2265 2612 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) ---------------------------------------------- 1:2528 2:2012 3:1000 4:5 5:5087 6:200 7:6 8:1489 9:43 11:172 12:1176 13:704 14:2744 15:464 16:208 17:443 18:921 20:591 21:4 22:188 23:8321 24:2780 25:2 27:2746 28:1 29:19 31:3538 32:37 34:86 35:287 36:4753 37:4439 38:9644 39:1296 40:441 41:4578 42:2171 43:3116 44:449 45:19797 46:4901 47:416 48:127 49:2228 50:2013 51:677 52:1317 54:282 55:1021 56:11 57:327 58:2417 59:1433 60:1176 61:3151 62:3127 63:1691 64:6383 65:2146 66:6122 67:3271 68:1506 69:4221 70:1061 71:610 72:3187 74:3067 75:1503 76:601 77:2961 78:2026 79:1793 80:2352 81:2248 82:4187 83:1457 84:2157 85:3840 86:1092 87:2640 88:1340 89:4781 90:812 91:8465 92:2797 93:3036 94:4403 95:4748 96:1455 97:312 98:945 99:831 100:70 101:1370 102:4536 103:32449 104:5379 105:856 106:901 107:2937 108:1282 109:4251 110:2282 111:4192 112:3181 113:1969 114:2289 115:2237 116:2150 117:3485 118:2979 119:2091 120:2740 121:1592 122:3006 123:2288 124:1727 125:3036 126:126 128:1582 129:979 130:1659 131:2479 132:895 133:486 134:1696 135:608 136:1542 137:1429 138:3357 139:1613 140:1831 141:1743 142:2568 143:2107 144:1765 145:638 146:2195 147:2254 148:2806 149:3121 150:1363 151:2918 152:2341 153:1560 154:9679 155:2304 156:5197 157:2322 158:1572 159:2874 160:3816 161:1968 162:4072 163:2552 164:2425 165:2668 166:1280 167:2315 168:4035 169:867 170:5615 171:1140 172:4778 173:3469 174:892 175:1357 176:3944 177:4843 178:4422 179:2340 180:3052 181:4577 182:4014 183:2827 184:2006 185:21904 186:6096 187:5006 188:4600 189:4537 190:9810 191:1684 192:11511 193:9646 194:7898 195:5840 196:3364 197:3219 198:6309 199:6076 200:8270 201:6391 202:10792 203:10535 204:4791 205:3756 206:4525 207:3988 208:4358 209:5480 210:4900 211:2781 212:5108 213:4098 214:1040 215:47 216:7312 217:3604 218:1760 219:585 220:2191 221:1317 222:1080 223:3458 End of report

1 0

** NANOG 97 Agenda is Published! 🎉 + More
by Nanog News 08 May '26

08 May '26

*** NANOG 97 Agenda is Published! 🎉* ------------------------------------------------------------ *It’s Here: Speakers, Talks, Dates, Times & Locations* Sync your calendars now and never miss a talk. Floorplans are also available for viewing. Map out your route and get to know the lay of the land now. *VIEW NOW!* (https://nanog.org/events/nanog-97/agenda/) *** NANOG 97 Attendees: Bring Your People!* ------------------------------------------------------------ *Conference Kit: N97 Logos, Banners + More!* Download one of our logos and add it to your email signature line, post it on your socials, or add a banner to your website. *MORE INFO* (https://nanog.org/events/nanog-97/conference-kit/) *** Join Us for Women in Tech: Kaleidoscope on Sunday, May 31* ------------------------------------------------------------ Different Paths. One Community. A network of perspectives, built on connection. Join the community at NANOG 97, Sunday, May 31 at 5 - 6:30 pm for a "Kaleidoscope" themed gathering. *VIEW ALL SOCIALS* (https://nanog.org/events/nanog-97/socials/) *** Spotlight on Compudopt: Graduation & the Digital Gap* ------------------------------------------------------------ A diploma doesn’t guarantee digital readiness. Without a home computer, graduates struggle to access broadband, workforce tools, and certification programs. Underwrite a graduating class, match employee donations, or sponsor devices for students entering tech pathways. *LEARN MORE *(http://compudopt.org/corporate-giving) *** 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

1 0