- routing-wg - mailman.ripe.net

RTBH and RPKI
by Salvador Bertenbreiter 25 Aug '26

25 Aug '26

Hi all, A quick question for those using RTBH together with RPKI. How do you handle /32 announcements in IPv4 or /128 in IPv6 when the prefix has a ROA with a maxLength of /24 or /48? One option would be to extend the ROA to /32 or /128, but I’m not fully comfortable with that since it would also make other more-specifics valid. The other option would be to keep the ROA as it is and still announce the host route for RTBH, but in that case it would be RPKI Invalid. Do upstreams normally make an exception for routes marked as blackhole, or are they dropped by RPKI before the RTBH policy is applied? Creating a specific ROA at the time of the attack also doesn’t seem very practical because of propagation times. How are you handling this in production? Regards, Salvador

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Call for presentation proposals (CFP) For RIPE 93 in Sofia
by Ben Cartwright-Cox 24 Aug '26

24 Aug '26

Dear RIPE Routing WG, This is a call for presentation proposals for RIPE 93. RIPE 93 takes place in Sofia, Bulgaria from 26-30 October 2026 https://ripe93.ripe.net/ We ask the Working Group and RIPE NCC for presentation proposals for the standard 1.5 hour Routing WG slot on (as currently scheduled, it could change) Wednesday before Lunch. RIPE has a CFP system that you can use here https://pretalx.ripe.net/ripe-93/cfp , We would prefer that submissions go into that, however if you need to ask questions around subjects or interest ahead of time, you can reach us on routing-wg-chairs(a)ripe.net! Kind regards, Ben, Seb, Ignas, (your friendly Routing Working Group Chairs)

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 21 Aug '26

21 Aug '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 22 Aug, 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: 1069807 Prefixes after maximum aggregation (per Origin AS): 410039 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 528005 Number of IPv4 prefixes with a valid ROA: 734150 Number of IPv4 prefixes with an invalid ROA: 1492 Number of IPv4 prefixes with no ROA: 334165 Total ASes present in the Internet Routing Table: 79127 Prefixes per ASN: 13.52 Origin-only ASes present in the Internet Routing Table: 68012 Origin ASes announcing only one prefix: 27743 Transit ASes present in the Internet Routing Table: 11115 Transit-only ASes present in the Internet Routing Table: 598 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: 1260 Number of instances of unregistered ASNs: 1299 Number of 32-bit ASNs allocated by the RIRs: 50926 Number of 32-bit ASNs visible in the Routing Table: 41430 Prefixes from 32-bit ASNs in the Routing Table: 238897 Number of bogon 32-bit ASNs visible in the Routing Table: 106 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 517 Number of addresses announced to Internet: 3120744448 Equivalent to 186 /8s, 2 /16s and 200 /24s Percentage of available address space announced: 84.3 Percentage of allocated address space announced: 84.3 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: 351046 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 293290 Total APNIC prefixes after maximum aggregation: 84711 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 279775 Unique aggregates announced from the APNIC address blocks: 109245 APNIC Region origin ASes present in the Internet Routing Table: 15334 APNIC Prefixes per ASN: 18.25 APNIC Region origin ASes announcing only one prefix: 4740 APNIC Region transit ASes present in the Internet Routing Table: 2018 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: 10917 Number of APNIC addresses announced to Internet: 749293184 Equivalent to 44 /8s, 169 /16s and 78 /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: 309488 Total ARIN prefixes after maximum aggregation: 138868 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 307824 Unique aggregates announced from the ARIN address blocks: 150677 ARIN Region origin ASes present in the Internet Routing Table: 19514 ARIN Prefixes per ASN: 15.77 ARIN Region origin ASes announcing only one prefix: 7169 ARIN Region transit ASes present in the Internet Routing Table: 1908 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5747 Number of ARIN addresses announced to Internet: 1350062080 Equivalent to 80 /8s, 120 /16s and 80 /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: 296920 Total RIPE prefixes after maximum aggregation: 147270 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 302466 Unique aggregates announced from the RIPE address blocks: 197290 RIPE Region origin ASes present in the Internet Routing Table: 29749 RIPE Prefixes per ASN: 10.17 RIPE Region origin ASes announcing only one prefix: 12305 RIPE Region transit ASes present in the Internet Routing Table: 4043 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13763 Number of RIPE addresses announced to Internet: 749704576 Equivalent to 44 /8s, 175 /16s and 149 /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 196608-219547 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: 131199 Total LACNIC prefixes after maximum aggregation: 31417 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 125356 Unique aggregates announced from the LACNIC address blocks: 51317 LACNIC Region origin ASes present in the Internet Routing Table: 11478 LACNIC Prefixes per ASN: 10.92 LACNIC Region origin ASes announcing only one prefix: 2780 LACNIC Region transit ASes present in the Internet Routing Table: 2598 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9566 Number of LACNIC addresses announced to Internet: 168154368 Equivalent to 10 /8s, 5 /16s and 213 /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: 37650 Total AfriNIC prefixes after maximum aggregation: 7035 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 53869 Unique aggregates announced from the AfriNIC address blocks: 19043 AfriNIC Region origin ASes present in the Internet Routing Table: 2071 AfriNIC Prefixes per ASN: 26.01 AfriNIC Region origin ASes announcing only one prefix: 749 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1437 Number of AfriNIC addresses announced to Internet: 103247616 Equivalent to 6 /8s, 39 /16s and 111 /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 14211 8919 105 CHINAMOBILE-CN - China Mobile Communicati 7545 5841 832 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5072 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5070 559 341 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4611 347 24 FPT-VN - FPT Telecom Company, VN 7552 4027 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3655 1043 65 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3620 887 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3405 1868 99 VNPT-AS-VN - VNPT Corp, VN 140292 3256 342 1864 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 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 15871 42023 5720 AMAZON-02 - Amazon.com, Inc., US 22773 4806 3182 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4602 306 1138 CABLEONE - CABLE ONE, INC., US 7155 3998 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3745 1305 75 SHAW - Shaw Communications, CA 396982 3459 4848 547 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3175 237 1110 AS-COLOCROSSING - HostPapa, US 749 3131 54647 2382 DNIC-AS-00749 - United States Department 7029 2767 2573 889 WINDSTREAM - Windstream Communications LL 31898 2643 1340 1167 ORACLE-BMC-31898 - Oracle Corporation, 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 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4178 374 2539 M247 - M247 Europe SRL, RO 20940 3909 3389 107 AKAMAI-ASN1 - Akamai International B.V., 212238 3545 256 2673 CDNEXT - Datacamp Limited, GB 12389 3159 2331 868 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2520 150 27 KCELL-AS - Kcell JSC, KZ 34984 2513 369 585 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1696 106 784 ITHOSTLINE - IT HOSTLINE LTD, CY 203020 1661 254 831 HostRoyale - HostRoyale Technologies Pvt 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 13079 3285 612 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2264 499 331 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1884 369 65 AS11830 - Instituto Costarricense de Elec 11664 1500 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1377 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1266 762 224 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1197 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1095 70 384 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1074 77 61 AS27715 - Locaweb Servicos de Internet S/ 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 1982 537 31 Vodafone Data - Vodafone Data, EG 36992 1928 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1296 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1254 523 49 Vodafone Data - Vodafone Data, EG 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 562 58 63 Wananchi Group (Kenya) Limited - Wananchi 36914 550 82 3 Kenya Education Network - Kenya Education 37342 539 32 1 Movitel, SA - Movitel, SA, MZ 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 15871 42023 5720 AMAZON-02 - Amazon.com, Inc., US 9808 14211 8919 105 CHINAMOBILE-CN - China Mobile Communicati 8151 13079 3285 612 AS8151 - UNINET, MX 12479 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5841 832 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5072 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5070 559 341 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4806 3182 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4611 347 24 FPT-VN - FPT Telecom Company, VN Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 14211 14106 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13079 12467 AS8151 - UNINET, MX 12479 6978 6828 UNI2-AS - Orange Espagne SA, ES 7545 5841 5562 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5072 4998 ERX-CERNET-BKB - China Education and Research N 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5070 4729 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4611 4587 FPT-VN - FPT Telecom Company, VN 22773 4806 4435 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4027 4003 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 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 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 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 3356 LEVEL3 - Level 3 Parent 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 23.130.160.0/24 Origin: 16509 AMAZON-02 - Amazon.com, Inc., US 23.130.160.0/24 Transit: 2516 KDDI - KDDI CORPORATION, JP 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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 /11:97 /12:299 /13:590 /14:1188 /15:2127 /16:13737 /17:8368 /18:13358 /19:25708 /20:46938 /21:54000 /22:113868 /23:110747 /24:678011 /25:702 /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 7253 13079 AS8151 - UNINET, MX 12479 5909 6978 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3522 3745 SHAW - Shaw Communications, CA 11492 3507 4602 CABLEONE - CABLE ONE, INC., US 22773 3054 4806 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 3023 15871 AMAZON-02 - Amazon.com, Inc., US 7155 2951 3998 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2205 2550 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2725 2:2892 3:1025 4:5 5:5279 6:207 7:6 8:1382 9:98 11:172 12:1099 13:887 14:2793 15:488 16:269 17:464 18:944 20:602 21:4 22:188 23:8594 24:2733 25:2 27:2892 28:7 29:19 31:3849 32:37 34:95 35:295 36:4913 37:4474 38:10310 39:1386 40:424 41:4622 42:2233 43:3386 44:504 45:19730 46:5000 47:464 48:171 49:2302 50:2019 51:847 52:1368 54:323 55:1063 56:11 57:335 58:2527 59:1428 60:1258 61:3232 62:3174 63:1731 64:6603 65:2174 66:6262 67:3334 68:1307 69:4084 70:1054 71:605 72:3251 74:3119 75:1608 76:596 77:2974 78:2127 79:1836 80:2403 81:2306 82:4405 83:1496 84:2168 85:3908 86:1134 87:3078 88:1339 89:4859 90:766 91:8512 92:2748 93:3049 94:4549 95:4781 96:1455 97:310 98:940 99:971 100:65 101:1351 102:4772 103:32402 104:5663 105:839 106:928 107:2989 108:1397 109:3951 110:2283 111:4283 112:3154 113:1946 114:2604 115:2246 116:2112 117:3873 118:3021 119:2116 120:2841 121:1890 122:3088 123:2244 124:1746 125:3029 126:156 128:1582 129:986 130:1745 131:2537 132:887 133:492 134:1767 135:675 136:1577 137:1464 138:3429 139:1801 140:1931 141:1833 142:2650 143:2208 144:1878 145:676 146:2204 147:2340 148:2838 149:3639 150:1421 151:3005 152:2465 153:2043 154:9589 155:2398 156:4123 157:2462 158:1644 159:2930 160:4046 161:2100 162:4225 163:2704 164:2400 165:2779 166:1228 167:2398 168:4294 169:917 170:5641 171:1125 172:4928 173:3479 174:889 175:1411 176:4047 177:5514 178:4591 179:2769 180:3332 181:4652 182:4075 183:2863 184:2067 185:21994 186:6514 187:5743 188:4701 189:4746 190:10007 191:1858 192:11854 193:9654 194:7948 195:5924 196:3414 197:3240 198:6369 199:6135 200:8447 201:6761 202:10757 203:10583 204:4759 205:3786 206:4459 207:4128 208:4326 209:5500 210:4908 211:2807 212:5266 213:4127 214:1021 215:47 216:7334 217:3765 218:1965 219:584 220:2264 221:1459 222:1160 223:3617 End of report

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research survey on Segment Routing (SR-MPLS) traffic engineering practices
by Dekinder Florian 19 Aug '26

19 Aug '26

Dear colleagues, I am conducting a research survey on Segment Routing (SR-MPLS) traffic engineering practices in operational networks, as part of an ongoing measurement study at the University of Liège (Belgium). Our work builds on AReST, a methodology we developed to detect and characterize SR-MPLS tunnels from external traceroute measurements (paper: https://orbi.uliege.be/bitstream/2268/337150/1/paper.pdf — code: https://gitlab.uliege.be/segment-routing) The goal of this survey is to complement our external measurements with first-hand operational insight from network engineers and architects. If you are involved in the design, deployment, or operation of SR-MPLS in your network, I would greatly appreciate your input. The survey takes approximately 5 minutes and all responses will be kept strictly anonymized in any publication. Thank you for your time — every response helps, even if your deployment is limited or in early stages. Best regards, Florian Dekinder Contact: florian.dekinder(a)uliege.be<mailto:florian.dekinder@uliege.be> Link: https://forms.gle/2zPxABc2ZwL4Uxmn9

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research survey on Segment Routing (SR-MPLS) traffic engineering practices
by Dekinder Florian 18 Aug '26

18 Aug '26

Dear colleagues, I am conducting a research survey on Segment Routing (SR-MPLS) traffic engineering practices in operational networks, as part of an ongoing measurement study at the University of Liège (Belgium). Our work builds on AReST, a methodology we developed to detect and characterize SR-MPLS tunnels from external traceroute measurements (paper: https://orbi.uliege.be/bitstream/2268/337150/1/paper.pdf — code: https://gitlab.uliege.be/segment-routing) The goal of this survey is to complement our external measurements with first-hand operational insight from network engineers and architects. If you are involved in the design, deployment, or operation of SR-MPLS in your network, I would greatly appreciate your input. The survey takes approximately 5 minutes and all responses will be kept strictly anonymized in any publication. Thank you for your time — every response helps, even if your deployment is limited or in early stages. Best regards, Florian Dekinder Contact: florian.dekinder(a)uliege.be<mailto:florian.dekinder@uliege.be>

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 14 Aug '26

14 Aug '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 15 Aug, 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: 1068404 Prefixes after maximum aggregation (per Origin AS): 409814 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 527415 Number of IPv4 prefixes with a valid ROA: 731914 Number of IPv4 prefixes with an invalid ROA: 1349 Number of IPv4 prefixes with no ROA: 335141 Total ASes present in the Internet Routing Table: 79077 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 67968 Origin ASes announcing only one prefix: 27734 Transit ASes present in the Internet Routing Table: 11109 Transit-only ASes present in the Internet Routing Table: 600 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: 1364 Number of instances of unregistered ASNs: 1414 Number of 32-bit ASNs allocated by the RIRs: 50839 Number of 32-bit ASNs visible in the Routing Table: 41359 Prefixes from 32-bit ASNs in the Routing Table: 238051 Number of bogon 32-bit ASNs visible in the Routing Table: 131 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 561 Number of addresses announced to Internet: 3121076992 Equivalent to 186 /8s, 7 /16s and 219 /24s Percentage of available address space announced: 84.3 Percentage of allocated address space announced: 84.3 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: 349903 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 292375 Total APNIC prefixes after maximum aggregation: 84970 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 278902 Unique aggregates announced from the APNIC address blocks: 109167 APNIC Region origin ASes present in the Internet Routing Table: 15350 APNIC Prefixes per ASN: 18.17 APNIC Region origin ASes announcing only one prefix: 4756 APNIC Region transit ASes present in the Internet Routing Table: 2014 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: 10931 Number of APNIC addresses announced to Internet: 749229952 Equivalent to 44 /8s, 168 /16s and 87 /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: 309233 Total ARIN prefixes after maximum aggregation: 138638 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 307652 Unique aggregates announced from the ARIN address blocks: 150465 ARIN Region origin ASes present in the Internet Routing Table: 19485 ARIN Prefixes per ASN: 15.79 ARIN Region origin ASes announcing only one prefix: 7152 ARIN Region transit ASes present in the Internet Routing Table: 1904 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5722 Number of ARIN addresses announced to Internet: 1350341632 Equivalent to 80 /8s, 124 /16s and 148 /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: 296773 Total RIPE prefixes after maximum aggregation: 147068 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 301856 Unique aggregates announced from the RIPE address blocks: 196927 RIPE Region origin ASes present in the Internet Routing Table: 29715 RIPE Prefixes per ASN: 10.16 RIPE Region origin ASes announcing only one prefix: 12303 RIPE Region transit ASes present in the Internet Routing Table: 4037 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: 13717 Number of RIPE addresses announced to Internet: 749512832 Equivalent to 44 /8s, 172 /16s and 168 /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 196608-219547 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: 130755 Total LACNIC prefixes after maximum aggregation: 31353 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 125033 Unique aggregates announced from the LACNIC address blocks: 51119 LACNIC Region origin ASes present in the Internet Routing Table: 11465 LACNIC Prefixes per ASN: 10.91 LACNIC Region origin ASes announcing only one prefix: 2779 LACNIC Region transit ASes present in the Internet Routing Table: 2595 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9557 Number of LACNIC addresses announced to Internet: 168327168 Equivalent to 10 /8s, 8 /16s and 120 /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: 37904 Total AfriNIC prefixes after maximum aggregation: 7029 AfriNIC Deaggregation factor: 5.39 Prefixes being announced from the AfriNIC address blocks: 54400 Unique aggregates announced from the AfriNIC address blocks: 19281 AfriNIC Region origin ASes present in the Internet Routing Table: 2065 AfriNIC Prefixes per ASN: 26.34 AfriNIC Region origin ASes announcing only one prefix: 744 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1432 Number of AfriNIC addresses announced to Internet: 103360256 Equivalent to 6 /8s, 41 /16s and 39 /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 14214 8919 105 CHINAMOBILE-CN - China Mobile Communicati 7545 5836 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5070 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5067 559 343 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4612 347 24 FPT-VN - FPT Telecom Company, VN 7552 4026 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3768 1044 63 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3600 887 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3402 1868 99 VNPT-AS-VN - VNPT Corp, VN 17561 2861 180 505 LCS-AS-AP - LARUS Limited, HK 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 15829 42052 5665 AMAZON-02 - Amazon.com, Inc., US 22773 4807 3182 372 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4615 306 1134 CABLEONE - CABLE ONE, INC., US 7155 3998 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3740 1305 75 SHAW - Shaw Communications, CA 396982 3459 4848 548 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3189 238 1105 AS-COLOCROSSING - HostPapa, US 749 3133 54647 2384 DNIC-AS-00749 - United States Department 7029 2758 2573 891 WINDSTREAM - Windstream Communications LL 31898 2608 1328 1149 ORACLE-BMC-31898 - Oracle Corporation, 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 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4162 375 2546 M247 - M247 Europe SRL, RO 20940 3896 3388 102 AKAMAI-ASN1 - Akamai International B.V., 212238 3511 253 2650 CDNEXT - Datacamp Limited, GB 12389 3159 2331 870 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2520 150 27 KCELL-AS - Kcell JSC, KZ 34984 2482 367 586 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1944 122 909 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1714 1852 17 TE-AS - IDDQD-AS, EG 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 13022 3284 612 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2271 499 331 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1884 369 65 AS11830 - Instituto Costarricense de Elec 11664 1499 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1377 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1214 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1051 2384 95 AS26615 - TIM S/A, 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 1984 561 33 Vodafone Data - Vodafone Data, EG 36992 1928 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1295 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1253 524 47 Vodafone Data - Vodafone Data, EG 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 579 54 194 Africa on Cloud - Africa on Cloud, ZA 15399 562 58 63 Wananchi Group (Kenya) Limited - Wananchi 36914 554 82 3 Kenya Education Network - Kenya Education 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 15829 42052 5665 AMAZON-02 - Amazon.com, Inc., US 9808 14214 8919 105 CHINAMOBILE-CN - China Mobile Communicati 8151 13022 3284 612 AS8151 - UNINET, MX 12479 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5836 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5070 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5067 559 343 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4807 3182 372 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4615 306 1134 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 14214 14109 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13022 12410 AS8151 - UNINET, MX 12479 6978 6828 UNI2-AS - Orange Espagne SA, ES 7545 5836 5386 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5070 4996 ERX-CERNET-BKB - China Education and Research N 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5067 4724 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4612 4588 FPT-VN - FPT Telecom Company, VN 22773 4807 4435 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4026 4002 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 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 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 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 3356 LEVEL3 - Level 3 Parent 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 23.130.160.0/24 Origin: 16509 AMAZON-02 - Amazon.com, Inc., US 23.130.160.0/24 Transit: 2516 KDDI - KDDI CORPORATION, JP 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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 /11:97 /12:299 /13:590 /14:1188 /15:2128 /16:13738 /17:8377 /18:13370 /19:25725 /20:46967 /21:54016 /22:114080 /23:110661 /24:676398 /25:701 /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 7199 13022 AS8151 - UNINET, MX 12479 5909 6978 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3519 3740 SHAW - Shaw Communications, CA 11492 3511 4615 CABLEONE - CABLE ONE, INC., US 22773 3054 4807 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2995 15829 AMAZON-02 - Amazon.com, Inc., US 7155 2951 3998 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2209 2555 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2658 2:2878 3:1023 4:5 5:5288 6:207 7:6 8:1385 9:97 11:172 12:1102 13:866 14:2791 15:486 16:269 17:455 18:943 20:602 21:4 22:188 23:8575 24:2724 25:2 27:2809 28:6 29:19 31:3827 32:37 34:95 35:294 36:4901 37:4466 38:10389 39:1377 40:427 41:4640 42:2234 43:3376 44:484 45:19895 46:5003 47:463 48:171 49:2286 50:2018 51:874 52:1370 54:325 55:1080 56:11 57:335 58:2503 59:1424 60:1243 61:3221 62:3168 63:1746 64:6578 65:2151 66:6257 67:3343 68:1289 69:4067 70:1054 71:605 72:3247 74:3095 75:1601 76:597 77:2922 78:2126 79:1848 80:2380 81:2304 82:4391 83:1497 84:2160 85:3921 86:1130 87:2949 88:1338 89:4839 90:764 91:8516 92:2760 93:3062 94:4510 95:4742 96:1452 97:307 98:934 99:968 100:73 101:1346 102:4769 103:32398 104:5660 105:843 106:918 107:2987 108:1380 109:3941 110:2284 111:4285 112:3152 113:1939 114:2537 115:2244 116:2104 117:3692 118:3010 119:2109 120:2834 121:1766 122:3059 123:2241 124:1737 125:3030 126:156 128:1574 129:983 130:1741 131:2535 132:899 133:493 134:1804 135:651 136:1566 137:1459 138:3424 139:1808 140:1978 141:1827 142:2632 143:2208 144:1868 145:673 146:2198 147:2328 148:2803 149:3616 150:1425 151:3060 152:2457 153:1993 154:9639 155:2394 156:4313 157:2457 158:1640 159:2922 160:4029 161:2074 162:4219 163:2701 164:2376 165:2779 166:1193 167:2386 168:4253 169:915 170:5653 171:1125 172:4934 173:3496 174:891 175:1405 176:4057 177:5312 178:4604 179:2563 180:3316 181:4664 182:4063 183:2860 184:2063 185:21996 186:6552 187:5675 188:4697 189:4695 190:9970 191:1817 192:11866 193:9652 194:7968 195:5933 196:3431 197:3252 198:6367 199:6119 200:8487 201:6736 202:10758 203:10513 204:4755 205:3788 206:4460 207:4127 208:4336 209:5498 210:4909 211:2804 212:5246 213:4129 214:1019 215:47 216:7328 217:3743 218:1959 219:584 220:2267 221:1420 222:1155 223:3600 End of report

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 07 Aug '26

07 Aug '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 08 Aug, 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: 1067434 Prefixes after maximum aggregation (per Origin AS): 409019 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 527192 Number of IPv4 prefixes with a valid ROA: 729400 Number of IPv4 prefixes with an invalid ROA: 1683 Number of IPv4 prefixes with no ROA: 336351 Total ASes present in the Internet Routing Table: 79012 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 67900 Origin ASes announcing only one prefix: 27693 Transit ASes present in the Internet Routing Table: 11112 Transit-only ASes present in the Internet Routing Table: 606 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: 1287 Number of instances of unregistered ASNs: 1337 Number of 32-bit ASNs allocated by the RIRs: 50748 Number of 32-bit ASNs visible in the Routing Table: 41288 Prefixes from 32-bit ASNs in the Routing Table: 236859 Number of bogon 32-bit ASNs visible in the Routing Table: 137 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 494 Number of addresses announced to Internet: 3118732032 Equivalent to 185 /8s, 228 /16s and 19 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 349172 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 292789 Total APNIC prefixes after maximum aggregation: 84950 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 278558 Unique aggregates announced from the APNIC address blocks: 109120 APNIC Region origin ASes present in the Internet Routing Table: 15335 APNIC Prefixes per ASN: 18.16 APNIC Region origin ASes announcing only one prefix: 4751 APNIC Region transit ASes present in the Internet Routing Table: 2022 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: 10918 Number of APNIC addresses announced to Internet: 749228928 Equivalent to 44 /8s, 168 /16s and 83 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 308562 Total ARIN prefixes after maximum aggregation: 138343 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 306972 Unique aggregates announced from the ARIN address blocks: 150502 ARIN Region origin ASes present in the Internet Routing Table: 19501 ARIN Prefixes per ASN: 15.74 ARIN Region origin ASes announcing only one prefix: 7151 ARIN Region transit ASes present in the Internet Routing Table: 1907 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: 5715 Number of ARIN addresses announced to Internet: 1348075008 Equivalent to 80 /8s, 89 /16s and 254 /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: 296242 Total RIPE prefixes after maximum aggregation: 146564 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 301121 Unique aggregates announced from the RIPE address blocks: 196217 RIPE Region origin ASes present in the Internet Routing Table: 29670 RIPE Prefixes per ASN: 10.15 RIPE Region origin ASes announcing only one prefix: 12274 RIPE Region transit ASes present in the Internet Routing Table: 4024 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13683 Number of RIPE addresses announced to Internet: 749176192 Equivalent to 44 /8s, 167 /16s and 133 /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 196608-219547 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: 130726 Total LACNIC prefixes after maximum aggregation: 31409 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 125104 Unique aggregates announced from the LACNIC address blocks: 51095 LACNIC Region origin ASes present in the Internet Routing Table: 11476 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2775 LACNIC Region transit ASes present in the Internet Routing Table: 2602 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: 9551 Number of LACNIC addresses announced to Internet: 168372736 Equivalent to 10 /8s, 9 /16s and 42 /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: 37828 Total AfriNIC prefixes after maximum aggregation: 7027 AfriNIC Deaggregation factor: 5.38 Prefixes being announced from the AfriNIC address blocks: 55185 Unique aggregates announced from the AfriNIC address blocks: 19832 AfriNIC Region origin ASes present in the Internet Routing Table: 2051 AfriNIC Prefixes per ASN: 26.91 AfriNIC Region origin ASes announcing only one prefix: 742 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1421 Number of AfriNIC addresses announced to Internet: 103615232 Equivalent to 6 /8s, 45 /16s and 11 /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 14200 8919 100 CHINAMOBILE-CN - China Mobile Communicati 7545 5837 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5070 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5061 558 341 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4651 347 24 FPT-VN - FPT Telecom Company, VN 7552 4026 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3766 1044 63 telkomnet-as-ap - PT Telekomunikasi Indon 17561 3658 230 636 LCS-AS-AP - LARUS Limited, HK 56046 3596 887 179 CMNET-Jiangsu-AP - China Mobile communica 45899 3396 1868 99 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 15711 41558 5640 AMAZON-02 - Amazon.com, Inc., US 22773 4810 3182 373 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4617 307 1126 CABLEONE - CABLE ONE, INC., US 7155 3992 286 98 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3731 1305 75 SHAW - Shaw Communications, CA 396982 3461 4879 547 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3191 238 1114 AS-COLOCROSSING - HostPapa, US 749 3135 54727 2386 DNIC-AS-00749 - United States Department 7029 2718 2534 878 WINDSTREAM - Windstream Communications LL 31898 2583 1325 1141 ORACLE-BMC-31898 - Oracle Corporation, 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 7004 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4173 378 2556 M247 - M247 Europe SRL, RO 20940 3802 3388 101 AKAMAI-ASN1 - Akamai International B.V., 212238 3508 252 2648 CDNEXT - Datacamp Limited, GB 12389 3161 2332 871 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2545 151 24 KCELL-AS - Kcell JSC, KZ 34984 2485 367 588 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1944 122 909 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1716 1852 17 TE-AS - IDDQD-AS, EG 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 12968 3289 616 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2279 499 331 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1885 369 65 AS11830 - Instituto Costarricense de Elec 11664 1498 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1375 2429 271 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1210 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1052 2384 95 AS26615 - TIM S/A, 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 1986 585 33 Vodafone Data - Vodafone Data, EG 36992 1928 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1320 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1277 524 47 Vodafone Data - Vodafone Data, EG 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 617 55 201 Africa on Cloud - Africa on Cloud, ZA 15399 570 58 64 Wananchi Group (Kenya) Limited - Wananchi 36914 546 82 3 Kenya Education Network - Kenya Education 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 15711 41558 5640 AMAZON-02 - Amazon.com, Inc., US 9808 14200 8919 100 CHINAMOBILE-CN - China Mobile Communicati 8151 12968 3289 616 AS8151 - UNINET, MX 12479 7004 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5837 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5070 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5061 558 341 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4810 3182 373 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4651 347 24 FPT-VN - FPT Telecom Company, VN Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 14200 14100 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12968 12352 AS8151 - UNINET, MX 12479 7004 6854 UNI2-AS - Orange Espagne SA, ES 7545 5837 5387 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5070 4996 ERX-CERNET-BKB - China Education and Research N 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5061 4720 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4651 4627 FPT-VN - FPT Telecom Company, VN 22773 4810 4437 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4026 4002 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 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 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 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 3356 LEVEL3 - Level 3 Parent 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 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE - GTT Communications Inc., 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 /11:97 /12:299 /13:586 /14:1183 /15:2125 /16:13729 /17:8378 /18:13357 /19:25730 /20:46921 /21:54011 /22:113897 /23:110485 /24:675869 /25:698 /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 7156 12968 AS8151 - UNINET, MX 12479 5931 7004 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 11492 3512 4617 CABLEONE - CABLE ONE, INC., US 6327 3510 3731 SHAW - Shaw Communications, CA 22773 3056 4810 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2994 15711 AMAZON-02 - Amazon.com, Inc., US 7155 2946 3992 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2210 2556 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2677 2:2855 3:1020 4:5 5:5282 6:207 7:6 8:1391 9:96 11:172 12:1103 13:825 14:2787 15:486 16:264 17:454 18:944 20:602 21:4 22:188 23:8580 24:2790 25:2 27:2806 28:6 29:19 31:3834 32:37 34:94 35:293 36:4894 37:4466 38:10306 39:1383 40:432 41:4620 42:2254 43:3343 44:477 45:20076 46:5002 47:460 48:168 49:2269 50:2018 51:838 52:1371 54:307 55:1184 56:11 57:331 58:2498 59:1421 60:1239 61:3218 62:3176 63:1749 64:6556 65:2148 66:6236 67:3334 68:1286 69:4047 70:1055 71:606 72:3265 74:3082 75:1600 76:593 77:2924 78:2117 79:1846 80:2389 81:2288 82:4310 83:1495 84:2167 85:3919 86:1114 87:2909 88:1329 89:4821 90:770 91:8518 92:2751 93:3045 94:4484 95:4732 96:1448 97:307 98:936 99:970 100:73 101:1349 102:4736 103:32434 104:5664 105:835 106:918 107:2979 108:1380 109:3929 110:2285 111:4269 112:3149 113:1932 114:2530 115:2243 116:2102 117:3686 118:3016 119:2106 120:2829 121:1720 122:3053 123:2241 124:1734 125:3030 126:157 128:1573 129:979 130:1726 131:2523 132:901 133:493 134:1788 135:647 136:1559 137:1456 138:3412 139:1811 140:1977 141:1820 142:2611 143:2192 144:1869 145:670 146:2196 147:2333 148:2822 149:3614 150:1412 151:3020 152:2452 153:1955 154:9961 155:2384 156:4660 157:2451 158:1631 159:2911 160:4003 161:2070 162:4215 163:2683 164:2386 165:2784 166:1193 167:2383 168:4242 169:908 170:5653 171:1129 172:4921 173:3484 174:890 175:1401 176:4041 177:5261 178:4564 179:2505 180:3291 181:4671 182:4060 183:2864 184:2053 185:21958 186:6554 187:5592 188:4769 189:4674 190:9981 191:1790 192:11831 193:9640 194:7972 195:5932 196:3445 197:3203 198:6364 199:6114 200:8464 201:6719 202:10758 203:10520 204:4756 205:3782 206:4449 207:4105 208:4337 209:5492 210:4905 211:2802 212:5232 213:4133 214:1021 215:47 216:7306 217:3740 218:1947 219:583 220:2267 221:1394 222:1122 223:3589 End of report

1 0

Public RPKI RTR Validators
by Stefan-Gabriel Lungu 01 Aug '26

01 Aug '26

Hello everyone, I'm looking for recommendations for reliable public RPKI RTR (RFC 8210) servers, excluding Cloudflare. I know the common recommendation is to run my own validator, but in my particular case I'd prefer to use one or more independently operated public RTR servers instead. The main reason is that I don't want my routers to depend on the reachability of infrastructure that I operate myself. I'd rather have RTR connectivity provided by infrastructure that is operationally independent of my own network. Does anyone know of operators that intentionally provide public RTR servers suitable for production use? Thank you, Stefan

8 11

Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 31 Jul '26

31 Jul '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 01 Aug, 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: 1065956 Prefixes after maximum aggregation (per Origin AS): 408663 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 526257 Number of IPv4 prefixes with a valid ROA: 718950 Number of IPv4 prefixes with an invalid ROA: 1697 Number of IPv4 prefixes with no ROA: 345309 Total ASes present in the Internet Routing Table: 78975 Prefixes per ASN: 13.50 Origin-only ASes present in the Internet Routing Table: 67847 Origin ASes announcing only one prefix: 27685 Transit ASes present in the Internet Routing Table: 11128 Transit-only ASes present in the Internet Routing Table: 604 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: 1286 Number of instances of unregistered ASNs: 1328 Number of 32-bit ASNs allocated by the RIRs: 50656 Number of 32-bit ASNs visible in the Routing Table: 41235 Prefixes from 32-bit ASNs in the Routing Table: 236275 Number of bogon 32-bit ASNs visible in the Routing Table: 118 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 498 Number of addresses announced to Internet: 3120141312 Equivalent to 185 /8s, 249 /16s and 148 /24s Percentage of available address space announced: 84.3 Percentage of allocated address space announced: 84.3 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: 348654 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 292200 Total APNIC prefixes after maximum aggregation: 84766 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 278124 Unique aggregates announced from the APNIC address blocks: 108919 APNIC Region origin ASes present in the Internet Routing Table: 15320 APNIC Prefixes per ASN: 18.15 APNIC Region origin ASes announcing only one prefix: 4744 APNIC Region transit ASes present in the Internet Routing Table: 2025 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: 10898 Number of APNIC addresses announced to Internet: 749468288 Equivalent to 44 /8s, 171 /16s and 250 /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: 308029 Total ARIN prefixes after maximum aggregation: 138215 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 306502 Unique aggregates announced from the ARIN address blocks: 150317 ARIN Region origin ASes present in the Internet Routing Table: 19488 ARIN Prefixes per ASN: 15.73 ARIN Region origin ASes announcing only one prefix: 7143 ARIN Region transit ASes present in the Internet Routing Table: 1913 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: 5707 Number of ARIN addresses announced to Internet: 1348451072 Equivalent to 80 /8s, 95 /16s and 187 /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: 296127 Total RIPE prefixes after maximum aggregation: 146444 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 300631 Unique aggregates announced from the RIPE address blocks: 195869 RIPE Region origin ASes present in the Internet Routing Table: 29665 RIPE Prefixes per ASN: 10.13 RIPE Region origin ASes announcing only one prefix: 12278 RIPE Region transit ASes present in the Internet Routing Table: 4027 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13667 Number of RIPE addresses announced to Internet: 749575552 Equivalent to 44 /8s, 173 /16s and 157 /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 196608-219547 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: 130608 Total LACNIC prefixes after maximum aggregation: 31393 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 125089 Unique aggregates announced from the LACNIC address blocks: 51070 LACNIC Region origin ASes present in the Internet Routing Table: 11470 LACNIC Prefixes per ASN: 10.91 LACNIC Region origin ASes announcing only one prefix: 2779 LACNIC Region transit ASes present in the Internet Routing Table: 2601 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: 9544 Number of LACNIC addresses announced to Internet: 168412416 Equivalent to 10 /8s, 9 /16s and 197 /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: 37706 Total AfriNIC prefixes after maximum aggregation: 7117 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 55112 Unique aggregates announced from the AfriNIC address blocks: 19657 AfriNIC Region origin ASes present in the Internet Routing Table: 2055 AfriNIC Prefixes per ASN: 26.82 AfriNIC Region origin ASes announcing only one prefix: 741 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: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1419 Number of AfriNIC addresses announced to Internet: 103957248 Equivalent to 6 /8s, 50 /16s and 67 /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 14184 8921 101 CHINAMOBILE-CN - China Mobile Communicati 7545 5837 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5067 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5060 558 341 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4615 347 24 FPT-VN - FPT Telecom Company, VN 7552 4023 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3763 1044 63 telkomnet-as-ap - PT Telekomunikasi Indon 17561 3680 231 642 LCS-AS-AP - LARUS Limited, HK 56046 3588 887 179 CMNET-Jiangsu-AP - China Mobile communica 45899 3400 1868 99 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 15642 41524 5648 AMAZON-02 - Amazon.com, Inc., US 22773 4801 3174 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4616 306 1124 CABLEONE - CABLE ONE, INC., US 7155 3989 286 111 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3727 1305 75 SHAW - Shaw Communications, CA 396982 3450 4878 540 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3189 238 1118 AS-COLOCROSSING - HostPapa, US 749 3135 54727 2386 DNIC-AS-00749 - United States Department 7029 2712 2535 879 WINDSTREAM - Windstream Communications LL 30036 2551 357 551 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 7016 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4194 379 2572 M247 - M247 Europe SRL, RO 20940 3809 3389 109 AKAMAI-ASN1 - Akamai International B.V., 212238 3484 250 2626 CDNEXT - Datacamp Limited, GB 12389 3161 2332 871 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2549 151 25 KCELL-AS - Kcell JSC, KZ 34984 2489 367 586 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1803 113 840 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1714 1852 17 TE-AS - IDDQD-AS, EG 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 12927 3286 618 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2281 499 332 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1897 369 65 AS11830 - Instituto Costarricense de Elec 11664 1493 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1376 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1211 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1053 2384 95 AS26615 - TIM S/A, 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 1987 601 34 Vodafone Data - Vodafone Data, EG 36992 1930 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1320 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1274 523 48 Vodafone Data - Vodafone Data, EG 37069 1112 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 583 54 194 Africa on Cloud - Africa on Cloud, ZA 15399 563 58 63 Wananchi Group (Kenya) Limited - Wananchi 36914 555 82 3 Kenya Education Network - Kenya Education 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 15642 41524 5648 AMAZON-02 - Amazon.com, Inc., US 9808 14184 8921 101 CHINAMOBILE-CN - China Mobile Communicati 8151 12927 3286 618 AS8151 - UNINET, MX 12479 7016 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5837 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5067 4192 74 ERX-CERNET-BKB - China Education and Rese 9498 5060 558 341 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4801 3174 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4616 306 1124 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 14184 14083 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12927 12309 AS8151 - UNINET, MX 12479 7016 6866 UNI2-AS - Orange Espagne SA, ES 7545 5837 5387 TPG-INTERNET-AP - TPG Telecom Limited, AU 4538 5067 4993 ERX-CERNET-BKB - China Education and Research N 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5060 4719 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4615 4591 FPT-VN - FPT Telecom Company, VN 22773 4801 4430 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4023 3999 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 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 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 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 3356 LEVEL3 - Level 3 Parent 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 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 32217 GPIEX - GPIEX INC, US 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE - GTT Communications Inc., 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 /11:97 /12:299 /13:586 /14:1183 /15:2123 /16:13757 /17:8381 /18:13363 /19:25756 /20:46902 /21:54039 /22:113925 /23:110554 /24:674225 /25:697 /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 7119 12927 AS8151 - UNINET, MX 12479 5943 7016 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 11492 3510 4616 CABLEONE - CABLE ONE, INC., US 6327 3506 3727 SHAW - Shaw Communications, CA 22773 3056 4801 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2953 15642 AMAZON-02 - Amazon.com, Inc., US 7155 2943 3989 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2206 2551 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2640 2:2829 3:1026 4:5 5:5261 6:206 7:6 8:1390 9:94 11:172 12:1102 13:802 14:2782 15:483 16:258 17:455 18:947 20:601 21:4 22:188 23:8544 24:2788 25:2 27:2803 28:5 29:19 31:3822 32:37 34:94 35:293 36:4884 37:4457 38:10150 39:1379 40:423 41:4604 42:2215 43:3306 44:479 45:20076 46:4987 47:461 48:168 49:2257 50:2014 51:792 52:1372 54:302 55:1245 56:11 57:331 58:2479 59:1411 60:1214 61:3190 62:3177 63:1753 64:6543 65:2144 66:6230 67:3343 68:1287 69:4067 70:1055 71:605 72:3266 74:3058 75:1602 76:596 77:2933 78:2109 79:1827 80:2386 81:2287 82:4264 83:1484 84:2170 85:3914 86:1107 87:2885 88:1323 89:4821 90:768 91:8494 92:2747 93:3035 94:4490 95:4733 96:1456 97:312 98:932 99:967 100:73 101:1354 102:4731 103:32451 104:5653 105:831 106:912 107:2980 108:1352 109:3913 110:2285 111:4238 112:3143 113:1947 114:2526 115:2202 116:2097 117:3683 118:3013 119:2100 120:2838 121:1712 122:3056 123:2228 124:1730 125:3029 126:156 128:1578 129:971 130:1720 131:2543 132:891 133:493 134:1771 135:646 136:1557 137:1448 138:3416 139:1793 140:1932 141:1805 142:2619 143:2149 144:1868 145:697 146:2190 147:2305 148:2814 149:3604 150:1405 151:2943 152:2441 153:1944 154:9922 155:2380 156:4640 157:2447 158:1627 159:2897 160:3908 161:2054 162:4214 163:2680 164:2388 165:2780 166:1214 167:2370 168:4256 169:903 170:5646 171:1129 172:4911 173:3477 174:890 175:1390 176:4039 177:5246 178:4521 179:2501 180:3235 181:4680 182:4057 183:2857 184:2052 185:21952 186:6553 187:5558 188:4755 189:4683 190:9962 191:1786 192:11836 193:9646 194:7968 195:5915 196:3447 197:3148 198:6348 199:6127 200:8435 201:6672 202:10772 203:10561 204:4750 205:3783 206:4433 207:4122 208:4331 209:5491 210:4906 211:2805 212:5231 213:4135 214:1022 215:47 216:7320 217:3752 218:1931 219:584 220:2286 221:1355 222:1102 223:3593 End of report

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Traffic between Cambridge (UK) and TDC-hosted destination (AS3292, Denmark) tromboning via North America — possible GTT interconnect issue
by Peter Keller 31 Jul '26

31 Jul '26

Hello, [This message was written with AI assistance because I am not an expert in this area, however a substantial amount of manual analysis lies behind it.] We're seeing persistent high latency and apparent trombone routing on traffic between an end-user site in Cambridge, UK and a destination hosted on TDC's network (AS3292) in Denmark. We'd appreciate any insight from operators familiar with this topology, particularly regarding GTT (AS3257) peering with TDC. *Context / timeline:* The end-user's building-managed ISP changed their upstream international connectivity provider. Prior to this change, routing to the affected destination appeared to transit Colt directly into TDC in Europe with no issues. Since the change, we have observed the latency problem described below. We have not been able to confirm with certainty which provider the ISP switched to, but the timing strongly correlates with the onset of the issue. *Evidence gathered:* Traceroute from Cogent's own network (London → Denmark) shows traffic routed Liverpool → Montreal (Cogent backbone) → GTT in New York → back across the Atlantic to TDC: |1 * 2 be2422.ccr82.lon05.atlas.cogentco.com (154.54.57.61) 2.062 ms 3 port-channel3464.ccr91.lhr01.atlas.cogentco.com (154.54.75.150) 1.017 ms 4 be2133.ccr22.lpl01.atlas.cogentco.com (154.54.63.237) 6.998 ms 5 be3043.ccr22.ymq01.atlas.cogentco.com (154.54.44.166) 76.101 ms 6 be2089.rcr21.ymq02.atlas.cogentco.com (154.54.45.114) 76.498 ms 7 gtt.ymq02.atlas.cogentco.com (154.54.10.178) 76.219 ms 8 ae4.cr14-nyc3.ip4.gtt.net (141.136.105.9) 74.967 ms 9 ip4.gtt.net (208.116.142.170) 75.552 ms 10 lo0-0.lynqe10.dk.ip.tdc.net (93.178.170.33) 175.604 ms| Traceroute from NTT's looking glass (London router) shows a similar pattern, this time via Ashburn/Washington DC before handing to GTT: |1 ae-13.r27.asbnva02.us.bb.gin.ntt.net (129.250.2.111) 78.084 ms 2 ae-17.a05.asbnva02.us.bb.gin.ntt.net (129.250.5.7) 77.432 ms 3 ae-0.gtt.asbnva02.us.bb.gin.ntt.net (129.250.8.22) 78.836 ms 4 ae3.cr3-was1.ip4.gtt.net (213.200.112.218) 76.768 ms 5 ip4.gtt.net (208.97.204.10) 77.534 ms 6 lo0-0.lynqe10.dk.ip.tdc.net (93.178.170.33) 181.747 ms| By contrast, a traceroute via Colt (London) reaches the same destination in three hops entirely within Europe, at ~22ms: |1 212.36.131.20 [MPLS: Label 102112 Exp 0] 2 msec 2 ae23-0.ldn4nqp1.uk.ip.tdc.net (195.66.224.64) 2 msec 3 lo0-0.lynqe10.dk.ip.tdc.net (93.178.170.33) 22 msec| *Observation:* Two independent networks (Cogent and NTT) both hand off to GTT (AS3257) to reach this TDC (AS3292) prefix, and in both cases GTT appears to carry the traffic via North America before returning it to Denmark — adding roughly 150ms round-trip versus the direct European path Colt provides. This suggests GTT's interconnection with TDC for this prefix may currently be limited to (or preferred via) North American exchange points, despite TDC clearly supporting direct European peering (as demonstrated by Colt). Would anyone with visibility into GTT's or TDC's peering topology be able to confirm whether a European interconnect exists or is planned for this route? Any pointers to the right contact for a peering/routing query at either network would also be appreciated. Thanks in advance, Peter Keller.

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