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New on RIPE Labs: Improving the Resiliency of RPKI Relying Party Software
by Alun Davies 11 Nov '21

11 Nov '21

Dear colleagues, Koen van Hove talks us though a series of fifteen distinct tests carried out to examine the security of RPKI infrastructure. Learn more about the motivation and method behind it all, as well as the outcome, in this new article on RIPE Labs: https://labs.ripe.net/author/koen-van-hove/improving-the-resiliency-of-rpki… Kind regards, Alun Davies RIPE Labs Editor RIPE NCC

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Changes to RRDP repository postponed - new RPKI rp/validator software releases tomorrow 15:00 CET
by Ties de Kock 08 Nov '21

08 Nov '21

Dear colleagues, As a result of a coordinated vulnerability disclosure process, many relying party (RP)/"RPKI validator" implementations will release a new version tomorrow at 15:00 CET. The vulnerabilities can hang or crash an RP instance. The vulnerabilities are not likely to have a direct impact: An attacker needs to participate in the RPKI ecosystem actively and have control over a publication point. Unfortunately, authoritative public information is only available in Dutch [0]. We consider it unlikely that the new relying party versions will interact with our new RPKI publication server. However, because we could not test using these upcoming releases, out of an abundance of caution, we have decided to postpone our release of the new publication server until the sixteenth of November. Furthermore, we will not do any other deployments tomorrow. We encourage you to apply these security updates as soon as possible when they become available. As a reminder, support for the RIPE NCC RPKI Validator 3 ended on the first of July; security updates for RPKI Validator 3 will not be available; please use a supported RP implementation. Kind regards, Ties de Kock [0] https://www.ncsc.nl/actueel/nieuws/2021/oktober/29/aanstaande-bekendmaking-…

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 05 Nov '21

05 Nov '21

This is an automated weekly mailing describing the state of the Internet Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG 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 http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Global IPv4 Routing Table Report 04:00 +10GMT Sat 06 Nov, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 868790 Prefixes after maximum aggregation (per Origin AS): 328900 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 420349 Total ASes present in the Internet Routing Table: 72204 Prefixes per ASN: 12.03 Origin-only ASes present in the Internet Routing Table: 62027 Origin ASes announcing only one prefix: 25592 Transit ASes present in the Internet Routing Table: 10177 Transit-only ASes present in the Internet Routing Table: 340 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 53 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 864 Number of instances of unregistered ASNs: 868 Number of 32-bit ASNs allocated by the RIRs: 37762 Number of 32-bit ASNs visible in the Routing Table: 31293 Prefixes from 32-bit ASNs in the Routing Table: 144024 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 436 Number of addresses announced to Internet: 3071807488 Equivalent to 183 /8s, 24 /16s and 16 /24s Percentage of available address space announced: 83.0 Percentage of allocated address space announced: 83.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 289585 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 230522 Total APNIC prefixes after maximum aggregation: 64735 APNIC Deaggregation factor: 3.56 Prefixes being announced from the APNIC address blocks: 225581 Unique aggregates announced from the APNIC address blocks: 92757 APNIC Region origin ASes present in the Internet Routing Table: 12084 APNIC Prefixes per ASN: 18.67 APNIC Region origin ASes announcing only one prefix: 3439 APNIC Region transit ASes present in the Internet Routing Table: 1688 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7254 Number of APNIC addresses announced to Internet: 772863872 Equivalent to 46 /8s, 16 /16s and 247 /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, 131072-151865 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: 255488 Total ARIN prefixes after maximum aggregation: 117985 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255606 Unique aggregates announced from the ARIN address blocks: 122166 ARIN Region origin ASes present in the Internet Routing Table: 18944 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 6864 ARIN Region transit ASes present in the Internet Routing Table: 1952 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4192 Number of ARIN addresses announced to Internet: 1301808384 Equivalent to 77 /8s, 152 /16s and 5 /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, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 242203 Total RIPE prefixes after maximum aggregation: 113330 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 238381 Unique aggregates announced from the RIPE address blocks: 146288 RIPE Region origin ASes present in the Internet Routing Table: 28108 RIPE Prefixes per ASN: 8.48 RIPE Region origin ASes announcing only one prefix: 12118 RIPE Region transit ASes present in the Internet Routing Table: 3930 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10493 Number of RIPE addresses announced to Internet: 712299904 Equivalent to 42 /8s, 116 /16s and 213 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 113077 Total LACNIC prefixes after maximum aggregation: 26943 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 113954 Unique aggregates announced from the LACNIC address blocks: 47461 LACNIC Region origin ASes present in the Internet Routing Table: 10788 LACNIC Prefixes per ASN: 10.56 LACNIC Region origin ASes announcing only one prefix: 2620 LACNIC Region transit ASes present in the Internet Routing Table: 2127 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 53 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8456 Number of LACNIC addresses announced to Internet: 176445696 Equivalent to 10 /8s, 132 /16s and 89 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 26636 Total AfriNIC prefixes after maximum aggregation: 5248 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 34832 Unique aggregates announced from the AfriNIC address blocks: 11297 AfriNIC Region origin ASes present in the Internet Routing Table: 1569 AfriNIC Prefixes per ASN: 22.20 AfriNIC Region origin ASes announcing only one prefix: 551 AfriNIC Region transit ASes present in the Internet Routing Table: 310 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 898 Number of AfriNIC addresses announced to Internet: 108121344 Equivalent to 6 /8s, 113 /16s and 205 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 8645 9000 57 CHINAMOBILE-CN China Mobile Communicati 7545 5850 785 685 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4662 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3587 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3499 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3124 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2508 11119 578 KIXS-AS-KR Korea Telecom, KR 9498 2170 472 236 BBIL-AP BHARTI Airtel Ltd., IN 45090 2126 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2123 429 203 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5879 9962 2550 AMAZON-02, US 11492 4628 306 802 CABLEONE, US 22773 4059 3052 382 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3954 264 30 VIASAT-SP-BACKBONE, US 16625 3663 1892 2550 AKAMAI-AS, US 6327 3382 1318 69 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2595 373 155 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2525 5028 444 CENTURYLINK-US-LEGACY-QWEST, US 20115 2245 3032 503 CHARTER-20115, US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6875 1725 145 UNI2-AS, ES 20940 3920 3348 213 AKAMAI-ASN1, NL 8551 3273 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2932 2279 898 ROSTELECOM-AS, RU 9009 2501 258 1312 M247, GB 34984 2206 356 598 TELLCOM-AS, TR 58224 1708 904 582 TCI, IR 61317 1688 224 955 ASDETUK www.heficed.com, GB 13188 1610 100 27 TRIOLAN, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10153 3463 573 Uninet S.A. de C.V., MX 10620 3249 492 817 Telmex Colombia S.A., CO 11830 2470 369 62 Instituto Costarricense de Electricidad 13999 1638 289 454 Mega Cable, S.A. de C.V., MX 6503 1530 359 472 Axtel, S.A.B. de C.V., MX 28573 1449 2312 259 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1130 2351 137 TIM SA, BR 6147 1099 370 22 Telefonica del Peru S.A.A., PE 11664 965 187 442 Techtel LMDS Comunicaciones Interactiva Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1636 393 21 LINKdotNET-AS, EG 24835 1553 507 33 RAYA-AS, EG 36992 1273 1414 268 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 786 68 11 ORANGE-COTE-IVOIRE, CI 36935 682 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 37342 470 32 1 MOVITEL, MZ 15399 441 50 31 WANANCHI-, KE 2018 343 319 73 TENET-1, ZA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10153 3463 573 Uninet S.A. de C.V., MX 9808 8645 9000 57 CHINAMOBILE-CN China Mobile Communicati 12479 6875 1725 145 UNI2-AS, ES 16509 5879 9962 2550 AMAZON-02, US 7545 5850 785 685 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4662 4192 74 ERX-CERNET-BKB China Education and Rese 11492 4628 306 802 CABLEONE, US 22773 4059 3052 382 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3954 264 30 VIASAT-SP-BACKBONE, US 20940 3920 3348 213 AKAMAI-ASN1, NL Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8645 8588 CHINAMOBILE-CN China Mobile Communications Grou 12479 6875 6730 UNI2-AS, ES 7545 5850 5165 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4662 4588 ERX-CERNET-BKB China Education and Research Net 7155 3954 3924 VIASAT-SP-BACKBONE, US 11492 4628 3826 CABLEONE, US 20940 3920 3707 AKAMAI-ASN1, NL 22773 4059 3677 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3587 3568 VIETEL-AS-AP Viettel Group, VN 7713 3499 3442 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US 23.132.208.0/24 Transit: 15164 UPNLLC, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.252.160.0/24 Origin: 398968 GROUP-IID-01, US 23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.161.0/24 Origin: 398968 GROUP-IID-01, US 23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.162.0/24 Origin: 398968 GROUP-IID-01, US 23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE Complete listing at http://thyme.rand.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 /9:13 /10:41 /11:99 /12:300 /13:597 /14:1214 /15:2045 /16:13577 /17:8246 /18:13892 /19:25270 /20:42932 /21:50578 /22:107046 /23:93597 /24:507875 /25:1452 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5839 6875 UNI2-AS, ES 8151 4111 10153 Uninet S.A. de C.V., MX 11492 3581 4628 CABLEONE, US 6327 3190 3382 SHAW, CA 7155 3044 3954 VIASAT-SP-BACKBONE, US 22773 3017 4059 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 8551 2738 3273 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2249 2595 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1921 2470 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1916 2:1048 3:145 4:19 5:3641 6:100 7:5 8:1547 9:1 11:172 12:1718 13:406 14:2262 15:121 16:27 17:372 18:124 20:134 21:4 22:188 23:5315 24:2388 25:2 27:2549 29:19 31:2382 32:106 34:1 35:47 36:1731 37:3918 38:2346 39:618 40:148 41:3823 42:1062 43:2079 44:289 45:15631 46:3721 47:324 49:1678 50:1880 51:100 52:1328 54:283 55:731 56:4 57:55 58:1750 59:1132 60:935 61:2245 62:2345 63:1959 64:5392 65:2355 66:4941 67:2873 68:1169 69:4088 70:1352 71:678 72:3091 74:2622 75:1500 76:704 77:2060 78:1741 79:2580 80:1864 81:1512 82:1376 83:1170 84:1298 85:2811 86:711 87:1861 88:975 89:3097 90:502 91:7447 92:1846 93:2565 94:3164 95:3554 96:1301 97:347 98:979 99:925 100:75 101:1045 102:1740 103:27397 104:4114 105:425 106:829 107:2430 108:745 109:3913 110:2048 111:3134 112:1958 113:1432 114:1536 115:1934 116:1871 117:2423 118:2337 119:1841 120:1604 121:1039 122:2537 123:2129 124:1597 125:2032 128:1380 129:1110 130:911 131:2059 132:750 133:364 134:1900 135:331 136:805 137:859 138:2398 139:1215 140:828 141:1298 142:1235 143:1377 144:1273 145:328 146:1574 147:1469 148:2224 149:1584 150:848 151:1078 152:1665 153:433 154:3260 155:1358 156:1801 157:1187 158:988 159:2037 160:2302 161:1275 162:3384 163:1110 164:1650 165:1481 166:608 167:1660 168:3645 169:683 170:4276 171:808 172:2811 173:3024 174:1000 175:1124 176:3391 177:4512 178:3009 179:1935 180:2258 181:2614 182:3146 183:1921 184:2414 185:18976 186:4229 187:3454 188:3586 189:2989 190:8677 191:1334 192:10960 193:8405 194:6862 195:4887 196:2859 197:2137 198:6030 199:5974 200:7389 201:5594 202:10473 203:10026 204:4499 205:3389 206:3846 207:3376 208:3999 209:4700 210:4219 211:2437 212:3778 213:3388 214:1155 215:64 216:6382 217:2627 218:1220 219:612 220:1952 221:975 222:852 223:2106 End of report

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Add BGPsec support to Hosted RPKI?
by Booth, Mike 02 Nov '21

02 Nov '21

With a preference for the hosted mode, it would be useful for RIPE to provide this. I also think this would go a long way to ease take-up in the future. So yes, an appetite for BGPSEC repository to be added to the RIPE RPKI dashboard.

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Weekly Global IPv4 Routing Table Report
by cscora＠apnic.net 29 Oct '21

29 Oct '21

This is an automated weekly mailing describing the state of the Internet Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG 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 http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Global IPv4 Routing Table Report 04:00 +10GMT Sat 30 Oct, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 870998 Prefixes after maximum aggregation (per Origin AS): 330625 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 420290 Total ASes present in the Internet Routing Table: 72185 Prefixes per ASN: 12.07 Origin-only ASes present in the Internet Routing Table: 61995 Origin ASes announcing only one prefix: 25559 Transit ASes present in the Internet Routing Table: 10190 Transit-only ASes present in the Internet Routing Table: 349 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 53 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 906 Number of instances of unregistered ASNs: 910 Number of 32-bit ASNs allocated by the RIRs: 37687 Number of 32-bit ASNs visible in the Routing Table: 31261 Prefixes from 32-bit ASNs in the Routing Table: 146011 Number of bogon 32-bit ASNs visible in the Routing Table: 23 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 412 Number of addresses announced to Internet: 3071684096 Equivalent to 183 /8s, 22 /16s and 46 /24s Percentage of available address space announced: 83.0 Percentage of allocated address space announced: 83.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 289786 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 232859 Total APNIC prefixes after maximum aggregation: 66598 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 228100 Unique aggregates announced from the APNIC address blocks: 92707 APNIC Region origin ASes present in the Internet Routing Table: 12077 APNIC Prefixes per ASN: 18.89 APNIC Region origin ASes announcing only one prefix: 3441 APNIC Region transit ASes present in the Internet Routing Table: 1700 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7251 Number of APNIC addresses announced to Internet: 772994432 Equivalent to 46 /8s, 18 /16s and 245 /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, 131072-151865 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: 255120 Total ARIN prefixes after maximum aggregation: 117865 ARIN Deaggregation factor: 2.16 Prefixes being announced from the ARIN address blocks: 255232 Unique aggregates announced from the ARIN address blocks: 122364 ARIN Region origin ASes present in the Internet Routing Table: 18931 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 6851 ARIN Region transit ASes present in the Internet Routing Table: 1948 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4179 Number of ARIN addresses announced to Internet: 1301625344 Equivalent to 77 /8s, 149 /16s and 58 /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, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 242238 Total RIPE prefixes after maximum aggregation: 113310 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 238370 Unique aggregates announced from the RIPE address blocks: 146176 RIPE Region origin ASes present in the Internet Routing Table: 28088 RIPE Prefixes per ASN: 8.49 RIPE Region origin ASes announcing only one prefix: 12093 RIPE Region transit ASes present in the Internet Routing Table: 3920 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10472 Number of RIPE addresses announced to Internet: 712202880 Equivalent to 42 /8s, 115 /16s and 90 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 113211 Total LACNIC prefixes after maximum aggregation: 26920 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 114105 Unique aggregates announced from the LACNIC address blocks: 47434 LACNIC Region origin ASes present in the Internet Routing Table: 10794 LACNIC Prefixes per ASN: 10.57 LACNIC Region origin ASes announcing only one prefix: 2626 LACNIC Region transit ASes present in the Internet Routing Table: 2129 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 53 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8463 Number of LACNIC addresses announced to Internet: 176399872 Equivalent to 10 /8s, 131 /16s and 166 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 26664 Total AfriNIC prefixes after maximum aggregation: 5249 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 34779 Unique aggregates announced from the AfriNIC address blocks: 11255 AfriNIC Region origin ASes present in the Internet Routing Table: 1567 AfriNIC Prefixes per ASN: 22.19 AfriNIC Region origin ASes announcing only one prefix: 548 AfriNIC Region transit ASes present in the Internet Routing Table: 311 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 896 Number of AfriNIC addresses announced to Internet: 108183808 Equivalent to 6 /8s, 114 /16s and 193 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 8221 9000 57 CMNET-GD Guangdong Mobile Communication 7545 5844 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4663 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3590 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3499 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3058 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2508 11119 578 KIXS-AS-KR Korea Telecom, KR 9498 2165 472 236 BBIL-AP BHARTI Airtel Ltd., IN 45090 2126 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 4755 2124 429 203 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5823 9989 2548 AMAZON-02, US 11492 4643 307 802 CABLEONE, US 22773 4060 3053 371 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3954 264 30 VIASAT-SP-BACKBONE, US 16625 3650 1886 2544 AKAMAI-AS, US 6327 3373 1318 69 SHAW, CA 749 2876 50735 2132 DNIC-AS-00749, US 30036 2594 375 164 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 5028 444 CENTURYLINK-US-LEGACY-QWEST, US 7018 2246 24165 1432 ATT-INTERNET4, US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6877 1726 143 UNI2-AS, ES 20940 3912 3348 213 AKAMAI-ASN1, NL 8551 3289 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2934 2283 898 ROSTELECOM-AS, RU 9009 2504 259 1321 M247, GB 34984 2238 358 602 TELLCOM-AS, TR 58224 1696 903 577 TCI, IR 61317 1683 224 938 ASDETUK www.heficed.com, GB 13188 1610 100 27 TRIOLAN, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10584 3461 577 Uninet S.A. de C.V., MX 10620 3249 492 818 Telmex Colombia S.A., CO 11830 2469 369 62 Instituto Costarricense de Electricidad 13999 1634 288 453 Mega Cable, S.A. de C.V., MX 6503 1526 359 473 Axtel, S.A.B. de C.V., MX 28573 1446 2310 256 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1132 2351 137 TIM SA, BR 6147 1098 369 22 Telefonica del Peru S.A.A., PE 11664 958 187 441 Techtel LMDS Comunicaciones Interactiva Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1605 393 21 LINKdotNET-AS, EG 24835 1552 503 33 RAYA-AS, EG 36992 1272 1414 268 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 812 68 11 ORANGE-COTE-IVOIRE, CI 36935 670 523 44 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 514 50 31 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 2018 342 319 73 TENET-1, ZA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10584 3461 577 Uninet S.A. de C.V., MX 9808 8221 9000 57 CMNET-GD Guangdong Mobile Communication 12479 6877 1726 143 UNI2-AS, ES 7545 5844 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5823 9989 2548 AMAZON-02, US 4538 4663 4192 74 ERX-CERNET-BKB China Education and Rese 11492 4643 307 802 CABLEONE, US 22773 4060 3053 371 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3954 264 30 VIASAT-SP-BACKBONE, US 20940 3912 3348 213 AKAMAI-ASN1, NL Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8221 8164 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6877 6734 UNI2-AS, ES 7545 5844 5160 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4663 4589 ERX-CERNET-BKB China Education and Research Net 7155 3954 3924 VIASAT-SP-BACKBONE, US 11492 4643 3841 CABLEONE, US 20940 3912 3699 AKAMAI-ASN1, NL 22773 4060 3689 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3590 3571 VIETEL-AS-AP Viettel Group, VN 7713 3499 3442 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US 23.132.208.0/24 Transit: 15164 UPNLLC, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 174 COGENT-174, US 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW Complete listing at http://thyme.rand.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 /9:13 /10:41 /11:99 /12:300 /13:597 /14:1214 /15:2047 /16:13590 /17:8320 /18:14037 /19:25517 /20:43160 /21:51181 /22:107432 /23:93998 /24:507983 /25:1453 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5840 6877 UNI2-AS, ES 8151 4384 10584 Uninet S.A. de C.V., MX 11492 3597 4643 CABLEONE, US 6327 3181 3373 SHAW, CA 7155 3044 3954 VIASAT-SP-BACKBONE, US 22773 3008 4060 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 8551 2754 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2247 2594 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1921 2469 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1922 2:1056 3:145 4:19 5:3660 6:100 7:5 8:1554 9:1 11:172 12:1712 13:404 14:2292 15:119 16:25 17:371 18:123 20:130 21:4 22:188 23:5250 24:2406 25:2 27:2549 29:19 31:2375 32:106 34:1 35:47 36:1725 37:3910 38:2339 39:611 40:149 41:3820 42:1037 43:2072 44:290 45:15564 46:3727 47:321 49:1677 50:1850 51:100 52:1308 54:284 55:739 56:4 57:55 58:1741 59:1185 60:935 61:2340 62:2345 63:1958 64:5421 65:2355 66:4939 67:2874 68:1168 69:4102 70:1354 71:678 72:3155 74:2627 75:1496 76:699 77:2061 78:1736 79:2589 80:1864 81:1514 82:1379 83:1173 84:1296 85:2815 86:713 87:1870 88:982 89:3094 90:497 91:7440 92:1835 93:2570 94:3158 95:3568 96:1301 97:348 98:977 99:933 100:75 101:1035 102:1750 103:27310 104:4062 105:437 106:829 107:2391 108:739 109:3916 110:2048 111:3130 112:1964 113:1413 114:1507 115:1921 116:1894 117:2421 118:2328 119:1885 120:1610 121:1084 122:2536 123:2130 124:1596 125:2063 128:1396 129:1104 130:910 131:2054 132:745 133:364 134:1888 135:319 136:792 137:865 138:2413 139:1208 140:828 141:1290 142:1218 143:1381 144:1273 145:327 146:1567 147:1460 148:2221 149:1582 150:833 151:1091 152:1657 153:434 154:3207 155:1354 156:1802 157:1180 158:982 159:2045 160:2311 161:1258 162:3357 163:1108 164:1656 165:1474 166:604 167:1652 168:3652 169:679 170:4344 171:804 172:2776 173:3006 174:1005 175:1125 176:3372 177:4498 178:3017 179:1931 180:2262 181:2611 182:3139 183:2019 184:2417 185:18965 186:4207 187:3489 188:3580 189:3080 190:8649 191:1305 192:10959 193:8408 194:6849 195:4882 196:2876 197:2181 198:6084 199:5981 200:7382 201:5623 202:10522 203:10023 204:4530 205:3384 206:3798 207:3374 208:4005 209:4726 210:4217 211:2434 212:3747 213:3389 214:1155 215:64 216:6385 217:2623 218:1230 219:647 220:1955 221:975 222:852 223:2083 End of report

1 0

Changes to the RRDP repository
by Ties de Kock 28 Oct '21

28 Oct '21

Dear colleagues, Over the past months, we have been working on the RIPE NCC RPKI repositories. We have an update to the RRDP repository that we plan to deploy on 9 November. This will create a regular RRDP event (a session change) but will have no other externally visible impact. We want to share some of the improvements this change has to offer and highlight two areas in particular. First, we have improved the publication server software [0]. The current publication server uses an embedded NoSQL/schemaless database. We have changed the project to use PostgreSQL instead, which allows us to move several integrity checks to the publication server’s database. Second, we have changed how the publication server is deployed, which is part of our work to move components of our infrastructure on-premise. Initially, we will run two independent instances, with separate database servers and data centres, with each instance receiving all objects in the repository. We aim to keep this simple at an initial stage, closely monitor how the environment behaves, and expand later if we need to. Because the RRDP session differs between the instances, one instance is (and can be) active at each moment in time. This allows us to swap them out during an upgrade and allows us to fall back to the second one if any issue is being detected. Both instances are behind a load-balancer, which is the origin for the Content Delivery Network (CDN) that we use. By using a CDN, we (a) reduce the latency from various geographical locations, (b) protect ourselves from network glitches, and (c) reduce the bandwidth peak after a session change that would interfere with other services on the RIPE NCC network (for example during a deployment). This change is an intermediate step in our work on the resiliency of our publication infrastructure. We have extensively looked at possible architectures that can solve the issues we are facing now and considered numerous failure modes, and we think this design strikes a good balance between resilience and simplicity. We will discuss our architectural changes with the community at RIPE 83 and look forward to hearing your feedback. If you have any questions, please get in touch with us. Kind regards, Ties de Kock [0]: https://github.com/RIPE-NCC/rpki-publication-server

2 2

Relative size of IRR registries
by Rubens Kuhl 23 Oct '21

23 Oct '21

Recent discussions about ARIN-NONAUTH made me wonder what would be the impact of discontinuing *-NONAUTH IRR registries. These are the current size of all IRR registries I was able to mirror, ordered by the number of aut-num objects. source | total obj | rt obj | aut-num obj RIPE 948401 368596 37284 APNIC 879374 572495 17737 RADB 1533619 1344618 8787 TC 21423 8531 3412 ARIN 134512 50543 2211 RIPE-NONAUTH 58436 54807 2163 AFRINIC 121639 94734 2057 IDNIC 8541 4574 1713 ALTDB 25598 18319 1395 LACNIC 8008 4742 1039 ARIN-NONAUTH 67715 62471 939 WCGDB 65135 62849 773 NTTCOM 453257 444518 548 JPIRR 13404 11398 425 LEVEL3 111770 91524 299 CANARIE 1869 1455 177 BELL 29827 29613 105 BBOI 1291 924 56 RGNET 74 40 6 NESTEGG 8 4 2 REACH 20310 18207 2 HOST 2 0 1 OPENFACE 25 17 1 PANIX 42 40 1

2 2

Weekly Global IPv4 Routing Table Report
by cscora＠apnic.net 22 Oct '21

22 Oct '21

This is an automated weekly mailing describing the state of the Internet Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG 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 http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Global IPv4 Routing Table Report 04:00 +10GMT Sat 23 Oct, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 867554 Prefixes after maximum aggregation (per Origin AS): 329940 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 419703 Total ASes present in the Internet Routing Table: 72150 Prefixes per ASN: 12.02 Origin-only ASes present in the Internet Routing Table: 61971 Origin ASes announcing only one prefix: 25553 Transit ASes present in the Internet Routing Table: 10179 Transit-only ASes present in the Internet Routing Table: 348 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 53 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 920 Number of instances of unregistered ASNs: 924 Number of 32-bit ASNs allocated by the RIRs: 37600 Number of 32-bit ASNs visible in the Routing Table: 31219 Prefixes from 32-bit ASNs in the Routing Table: 145632 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 417 Number of addresses announced to Internet: 3071270144 Equivalent to 183 /8s, 15 /16s and 221 /24s Percentage of available address space announced: 83.0 Percentage of allocated address space announced: 83.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 288266 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231716 Total APNIC prefixes after maximum aggregation: 66510 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 227141 Unique aggregates announced from the APNIC address blocks: 92521 APNIC Region origin ASes present in the Internet Routing Table: 12039 APNIC Prefixes per ASN: 18.87 APNIC Region origin ASes announcing only one prefix: 3422 APNIC Region transit ASes present in the Internet Routing Table: 1700 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7211 Number of APNIC addresses announced to Internet: 773052288 Equivalent to 46 /8s, 19 /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, 131072-151865 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: 254633 Total ARIN prefixes after maximum aggregation: 117512 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 254543 Unique aggregates announced from the ARIN address blocks: 122065 ARIN Region origin ASes present in the Internet Routing Table: 18927 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 6857 ARIN Region transit ASes present in the Internet Routing Table: 1949 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4171 Number of ARIN addresses announced to Internet: 1301368320 Equivalent to 77 /8s, 145 /16s and 78 /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, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 241557 Total RIPE prefixes after maximum aggregation: 113212 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 237828 Unique aggregates announced from the RIPE address blocks: 146133 RIPE Region origin ASes present in the Internet Routing Table: 28094 RIPE Prefixes per ASN: 8.47 RIPE Region origin ASes announcing only one prefix: 12107 RIPE Region transit ASes present in the Internet Routing Table: 3918 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10484 Number of RIPE addresses announced to Internet: 712184704 Equivalent to 42 /8s, 115 /16s and 19 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 112033 Total LACNIC prefixes after maximum aggregation: 26788 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 112908 Unique aggregates announced from the LACNIC address blocks: 47478 LACNIC Region origin ASes present in the Internet Routing Table: 10786 LACNIC Prefixes per ASN: 10.47 LACNIC Region origin ASes announcing only one prefix: 2614 LACNIC Region transit ASes present in the Internet Routing Table: 2119 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 53 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8455 Number of LACNIC addresses announced to Internet: 176483328 Equivalent to 10 /8s, 132 /16s and 236 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 26695 Total AfriNIC prefixes after maximum aggregation: 5223 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 34717 Unique aggregates announced from the AfriNIC address blocks: 11144 AfriNIC Region origin ASes present in the Internet Routing Table: 1569 AfriNIC Prefixes per ASN: 22.13 AfriNIC Region origin ASes announcing only one prefix: 553 AfriNIC Region transit ASes present in the Internet Routing Table: 311 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 898 Number of AfriNIC addresses announced to Internet: 107911424 Equivalent to 6 /8s, 110 /16s and 153 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 8188 9000 57 CMNET-GD Guangdong Mobile Communication 7545 5839 787 682 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4661 4192 74 ERX-CERNET-BKB China Education and Rese 7713 3507 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3056 1896 55 VNPT-AS-VN VNPT Corp, VN 7552 2969 1330 19 VIETEL-AS-AP Viettel Group, VN 4766 2507 11119 578 KIXS-AS-KR Korea Telecom, KR 9498 2163 472 237 BBIL-AP BHARTI Airtel Ltd., IN 4755 2126 429 203 TATACOMM-AS TATA Communications formerl 45090 2126 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5766 9981 2525 AMAZON-02, US 11492 4672 309 782 CABLEONE, US 22773 4085 3057 378 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3951 264 30 VIASAT-SP-BACKBONE, US 16625 3638 1882 2536 AKAMAI-AS, US 6327 3371 1318 69 SHAW, CA 749 2666 50722 1922 DNIC-AS-00749, US 30036 2584 373 195 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2527 5028 447 CENTURYLINK-US-LEGACY-QWEST, US 20115 2241 3032 504 CHARTER-20115, US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6861 1726 143 UNI2-AS, ES 20940 3892 3348 214 AKAMAI-ASN1, NL 39891 3271 187 23 ALJAWWALSTC-AS, SA 8551 3270 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2929 2283 898 ROSTELECOM-AS, RU 9009 2508 259 1323 M247, GB 34984 2241 358 603 TELLCOM-AS, TR 58224 1692 902 581 TCI, IR 61317 1665 223 927 ASDETUK www.heficed.com, GB 13188 1606 100 27 TRIOLAN, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8902 3461 572 Uninet S.A. de C.V., MX 10620 3413 519 716 Telmex Colombia S.A., CO 11830 2498 369 62 Instituto Costarricense de Electricidad 13999 1641 297 457 Mega Cable, S.A. de C.V., MX 6503 1523 359 473 Axtel, S.A.B. de C.V., MX 28573 1444 2309 253 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1126 2351 135 TIM SA, BR 6147 1083 369 22 Telefonica del Peru S.A.A., PE 11172 956 111 69 Alestra, S. de R.L. de C.V., MX Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1636 393 21 LINKdotNET-AS, EG 24835 1551 503 32 RAYA-AS, EG 36992 1287 1418 270 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 813 68 11 ORANGE-COTE-IVOIRE, CI 36935 643 523 44 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 514 50 31 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 2018 343 319 73 TENET-1, ZA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8902 3461 572 Uninet S.A. de C.V., MX 9808 8188 9000 57 CMNET-GD Guangdong Mobile Communication 12479 6861 1726 143 UNI2-AS, ES 7545 5839 787 682 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5766 9981 2525 AMAZON-02, US 11492 4672 309 782 CABLEONE, US 4538 4661 4192 74 ERX-CERNET-BKB China Education and Rese 22773 4085 3057 378 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3951 264 30 VIASAT-SP-BACKBONE, US 20940 3892 3348 214 AKAMAI-ASN1, NL Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8188 8131 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6861 6718 UNI2-AS, ES 7545 5839 5157 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4661 4587 ERX-CERNET-BKB China Education and Research Net 7155 3951 3921 VIASAT-SP-BACKBONE, US 11492 4672 3890 CABLEONE, US 22773 4085 3707 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3892 3678 AKAMAI-ASN1, NL 7713 3507 3450 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 6327 3371 3302 SHAW, CA Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US 23.132.208.0/24 Transit: 15164 UPNLLC, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 174 COGENT-174, US 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW Complete listing at http://thyme.rand.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 /9:13 /10:41 /11:99 /12:300 /13:596 /14:1214 /15:2045 /16:13601 /17:8330 /18:14072 /19:25507 /20:42973 /21:50849 /22:107093 /23:93296 /24:506056 /25:1453 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5822 6861 UNI2-AS, ES 11492 3611 4672 CABLEONE, US 8151 3290 8902 Uninet S.A. de C.V., MX 6327 3179 3371 SHAW, CA 7155 3041 3951 VIASAT-SP-BACKBONE, US 22773 3014 4085 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 8551 2735 3270 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2238 2584 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1931 2498 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1921 2:1051 3:145 4:19 5:3658 6:85 7:5 8:1552 9:1 11:172 12:1715 13:400 14:2291 15:118 16:24 17:372 18:121 20:126 21:4 22:188 23:5235 24:2415 25:2 27:2517 29:19 31:2365 32:106 34:1 35:47 36:1730 37:3906 38:2322 39:608 40:151 41:3868 42:1039 43:2064 44:290 45:15532 46:3655 47:320 48:1 49:1674 50:1839 51:100 52:1294 54:279 55:735 56:4 57:55 58:1747 59:1177 60:932 61:2336 62:2317 63:1959 64:5370 65:2359 66:4929 67:2864 68:1165 69:4112 70:1355 71:678 72:3160 74:2627 75:1495 76:698 77:2042 78:1735 79:2569 80:1855 81:1515 82:1354 83:1165 84:1292 85:2823 86:716 87:1867 88:980 89:3067 90:505 91:7417 92:1834 93:2565 94:3132 95:3563 96:1297 97:347 98:977 99:953 100:75 101:1039 102:1724 103:27215 104:4052 105:436 106:804 107:2385 108:733 109:3915 110:2042 111:3122 112:1956 113:1406 114:1504 115:1937 116:1889 117:2344 118:2327 119:1884 120:1592 121:1088 122:2537 123:2166 124:1596 125:2049 128:1400 129:1159 130:903 131:2062 132:743 133:364 134:1889 135:319 136:787 137:858 138:2410 139:1202 140:833 141:1290 142:1197 143:1380 144:1274 145:326 146:1564 147:1466 148:2218 149:1500 150:834 151:1089 152:1660 153:434 154:3141 155:1370 156:1766 157:1188 158:995 159:2041 160:2345 161:1246 162:3351 163:1105 164:1649 165:1461 166:593 167:1661 168:3650 169:688 170:4334 171:783 172:2763 173:2975 174:1003 175:1124 176:3349 177:4544 178:2999 179:1922 180:2256 181:2688 182:3121 183:2013 184:2413 185:18952 186:4208 187:3206 188:3459 189:2910 190:8651 191:1313 192:10851 193:8401 194:6842 195:4874 196:2880 197:2165 198:6036 199:5924 200:7361 201:5491 202:10489 203:10031 204:4517 205:3380 206:3799 207:3369 208:3999 209:4738 210:4200 211:2429 212:3756 213:3382 214:1167 215:62 216:6370 217:2619 218:1224 219:648 220:1949 221:976 222:844 223:2078 End of report

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Too large AS-sets
by Antti Ristimäki 19 Oct '21

19 Oct '21

Colleagues, I'd like to hear how you others deal with those peers, whose AS-sets expands to way too large prefix-lists and/or as-paths. There are some networks that only ever add members to their AS-sets, but never remove. I have some deep frustration at (automatically) configuring our routers with prefix-lists or as-path filters that are magnitude or two as big as the specific peer's real advertised route count. Modern router platforms can quite easily handle large configs, but gigantic as-path filters seem to cause unnecessary increase in commit times at least in our JunOS platforms. The penalty feels higher than the reward. After all, if the peer's AS-set expands to cover big portion of the entire ASN space, I'm begin to ponder whether it would make more sense to drop IRR based as-path filtering altogether for those peers and use e.g. some sort of generalized peerlock filter? Are there any others as frustrated as I am and how have you solved this issue? I will appreciate constructive feedback. -Antti

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Your opinion on Internet monitoring and measurements - a 10min survey
by Pavlos Sermpezis 18 Oct '21

18 Oct '21

Hi all, Do you use Internet monitoring and measurements (e.g., RIPEstat, RIPE RIS/Atlas, RouteViews, bgp.he.net, etc.) for your operations? What are your use cases? We (researchers) are trying to identify limitations and biases of the Internet monitoring infrastructure, and come up with ideas to fix them. We would like to hear your opinion! Please help us by answering our short anonymous survey; it should take less than 10min. Survey URL: https://forms.gle/9xJpYFw3PBo8KShz9 Thank you in advance, Pavlos Sermpezis PS. You can find more about our research project (funded by RIPE NCC) here https://sermpezis.github.io/ai4netmon/ -- Pavlos Sermpezis Postdoctoral researcher Datalab (https://datalab.csd.auth.gr/) Informatics Dept. Aristotle University of Thessaloniki, Greece

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