- routing-wg - mailman.ripe.net

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

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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

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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

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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

1 0

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

1 0

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

1 0

Add BGPsec support to Hosted RPKI?
by Job Snijders 18 Oct '21

18 Oct '21

Dear all, [ TL;DR: What does the working group think about supporting an extension to the RPKI Dashboard to enable publication of BGPsec certs? ] At the moment the hosted "RPKI Dashboard" at https://my.ripe.net/#/rpki, only permits Resource Holders to create RPKI objects of one specific type: ROAs. However, a wider range of RPKI cryptographic product types also exists, for example: BGPsec Router Certificates [RFC 8209]. BGPsec is a RPKI-based technology which enables network operators to transitively validate whether a given BGP UPDATE - indeed - passed through the Autonomous Systems listed in the path. One way to think of BGPsec is as an ECDSA protected network of channels between a receiving EBGP node; and one (or many) routers in the BGP route's Origin AS. I think BGPsec can be useful to protect "private peering" at large scale, and another use case is to increase confidence in routing information distributed via IXP Route/Blackhole Servers. Right now, routing protocol researchers and network operators wishing to publish BGPsec Router Keys, also have to learn how to master "Delegated RPKI": a deployment model with a steep learning curve. I think there are benefits to the community if RIPE NCC appends an activity to the "RPKI Planning and Roadmap" to implement procedures to sign and publish BGPsec Router Keys via a PKCS#10 / PKCS#7 exchange, callable via both API and dashboard WebUI. What do others think? Kind regards, Job Relevant documentation: https://datatracker.ietf.org/doc/html/rfc8209 https://datatracker.ietf.org/doc/html/rfc8635

14 34

Weekly Global IPv4 Routing Table Report
by cscora＠apnic.net 15 Oct '21

15 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 16 Oct, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 866541 Prefixes after maximum aggregation (per Origin AS): 329021 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 418843 Total ASes present in the Internet Routing Table: 72090 Prefixes per ASN: 12.02 Origin-only ASes present in the Internet Routing Table: 61921 Origin ASes announcing only one prefix: 25538 Transit ASes present in the Internet Routing Table: 10169 Transit-only ASes present in the Internet Routing Table: 346 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: 949 Number of instances of unregistered ASNs: 953 Number of 32-bit ASNs allocated by the RIRs: 37511 Number of 32-bit ASNs visible in the Routing Table: 31156 Prefixes from 32-bit ASNs in the Routing Table: 144954 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: 453 Number of addresses announced to Internet: 3071273216 Equivalent to 183 /8s, 15 /16s and 233 /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: 287833 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231909 Total APNIC prefixes after maximum aggregation: 66335 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 227300 Unique aggregates announced from the APNIC address blocks: 92166 APNIC Region origin ASes present in the Internet Routing Table: 12027 APNIC Prefixes per ASN: 18.90 APNIC Region origin ASes announcing only one prefix: 3424 APNIC Region transit ASes present in the Internet Routing Table: 1698 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: 7196 Number of APNIC addresses announced to Internet: 772900480 Equivalent to 46 /8s, 17 /16s and 134 /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, 131072-147769 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: 254057 Total ARIN prefixes after maximum aggregation: 116852 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 254037 Unique aggregates announced from the ARIN address blocks: 121712 ARIN Region origin ASes present in the Internet Routing Table: 18900 ARIN Prefixes per ASN: 13.44 ARIN Region origin ASes announcing only one prefix: 6843 ARIN Region transit ASes present in the Internet Routing Table: 1946 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: 4157 Number of ARIN addresses announced to Internet: 1301327616 Equivalent to 77 /8s, 144 /16s and 175 /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: 241320 Total RIPE prefixes after maximum aggregation: 113069 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 237460 Unique aggregates announced from the RIPE address blocks: 145857 RIPE Region origin ASes present in the Internet Routing Table: 28082 RIPE Prefixes per ASN: 8.46 RIPE Region origin ASes announcing only one prefix: 12098 RIPE Region transit ASes present in the Internet Routing Table: 3905 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10464 Number of RIPE addresses announced to Internet: 711908736 Equivalent to 42 /8s, 110 /16s and 221 /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: 111706 Total LACNIC prefixes after maximum aggregation: 26844 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 112587 Unique aggregates announced from the LACNIC address blocks: 47589 LACNIC Region origin ASes present in the Internet Routing Table: 10781 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2629 LACNIC Region transit ASes present in the Internet Routing Table: 2131 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: 8450 Number of LACNIC addresses announced to Internet: 176566272 Equivalent to 10 /8s, 134 /16s and 48 /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: 26600 Total AfriNIC prefixes after maximum aggregation: 5210 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 34704 Unique aggregates announced from the AfriNIC address blocks: 11141 AfriNIC Region origin ASes present in the Internet Routing Table: 1559 AfriNIC Prefixes per ASN: 22.26 AfriNIC Region origin ASes announcing only one prefix: 544 AfriNIC Region transit ASes present in the Internet Routing Table: 312 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 889 Number of AfriNIC addresses announced to Internet: 108256000 Equivalent to 6 /8s, 115 /16s and 219 /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 8044 9000 57 CMNET-GD Guangdong Mobile Communication 7545 5852 787 682 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4661 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3617 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3505 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3039 1896 55 VNPT-AS-VN VNPT Corp, VN 4766 2507 11119 578 KIXS-AS-KR Korea Telecom, KR 9498 2162 472 237 BBIL-AP BHARTI Airtel Ltd., IN 45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 4755 2126 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 5764 9986 2516 AMAZON-02, US 11492 4675 309 786 CABLEONE, US 22773 4086 3056 375 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3638 1882 2536 AKAMAI-AS, US 6327 3371 1318 69 SHAW, CA 30036 2576 373 244 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2531 5028 450 CENTURYLINK-US-LEGACY-QWEST, US 20115 2242 3032 504 CHARTER-20115, US 7018 2235 24164 1427 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 6845 1726 143 UNI2-AS, ES 20940 3878 3348 216 AKAMAI-ASN1, NL 8551 3289 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2929 2283 898 ROSTELECOM-AS, RU 9009 2491 259 1315 M247, GB 34984 2240 358 602 TELLCOM-AS, TR 58224 1691 901 579 TCI, IR 61317 1656 241 917 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 8874 3458 571 Uninet S.A. de C.V., MX 10620 3415 520 717 Telmex Colombia S.A., CO 11830 2498 369 62 Instituto Costarricense de Electricidad 13999 1669 330 465 Mega Cable, S.A. de C.V., MX 6503 1522 359 477 Axtel, S.A.B. de C.V., MX 28573 1465 2309 244 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1119 2351 135 TIM SA, BR 6147 1088 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 1550 503 32 RAYA-AS, EG 36992 1287 1418 270 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 800 68 11 ORANGE-COTE-IVOIRE, CI 36935 630 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 509 50 31 WANANCHI-, KE 37342 471 32 1 MOVITEL, MZ 2018 344 319 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 8874 3458 571 Uninet S.A. de C.V., MX 9808 8044 9000 57 CMNET-GD Guangdong Mobile Communication 12479 6845 1726 143 UNI2-AS, ES 7545 5852 787 682 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5764 9986 2516 AMAZON-02, US 11492 4675 309 786 CABLEONE, US 4538 4661 4192 74 ERX-CERNET-BKB China Education and Rese 22773 4086 3056 375 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3878 3348 216 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 8044 7987 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6845 6702 UNI2-AS, ES 7545 5852 5170 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4661 4587 ERX-CERNET-BKB China Education and Research Net 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4675 3889 CABLEONE, US 22773 4086 3711 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3878 3662 AKAMAI-ASN1, NL 7552 3617 3597 VIETEL-AS-AP Viettel Group, VN 7713 3505 3449 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 /14:1216 /15:2046 /16:13596 /17:8321 /18:14067 /19:25507 /20:42772 /21:51099 /22:107303 /23:92738 /24:505363 /25:1447 /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 5806 6845 UNI2-AS, ES 11492 3616 4675 CABLEONE, US 8151 3265 8874 Uninet S.A. de C.V., MX 6327 3179 3371 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 3018 4086 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 8551 2755 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2229 2576 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) ---------------------------------------------- 1:1926 2:1052 3:145 4:19 5:3647 6:85 7:5 8:1552 9:1 11:172 12:1717 13:406 14:2295 15:115 16:24 17:370 18:125 20:126 21:4 22:188 23:5189 24:2430 25:2 27:2551 29:19 31:2359 32:112 34:1 35:47 36:1727 37:3899 38:2296 39:611 40:151 41:3838 42:1039 43:2063 44:293 45:15456 46:3673 47:320 48:3 49:1677 50:1835 51:100 52:1301 54:248 55:739 56:4 57:55 58:1741 59:1181 60:937 61:2288 62:2330 63:1964 64:5369 65:2354 66:4953 67:2866 68:1162 69:4121 70:1360 71:678 72:3156 74:2620 75:1492 76:694 77:2036 78:1734 79:2630 80:1864 81:1527 82:1381 83:1164 84:1294 85:2819 86:718 87:1859 88:977 89:3043 90:508 91:7372 92:1829 93:2563 94:3139 95:3541 96:1297 97:347 98:978 99:949 100:75 101:1041 102:1711 103:27145 104:4058 105:439 106:827 107:2379 108:734 109:3866 110:2041 111:3098 112:1940 113:1410 114:1472 115:1931 116:1897 117:2424 118:2314 119:1893 120:1563 121:1079 122:2536 123:2167 124:1600 125:2048 128:1386 129:1304 130:904 131:2024 132:745 133:364 134:1862 135:318 136:791 137:856 138:2400 139:1190 140:721 141:1267 142:1197 143:1373 144:1267 145:326 146:1555 147:1428 148:2209 149:1489 150:831 151:1087 152:1653 153:429 154:3160 155:1334 156:1757 157:1187 158:1004 159:2045 160:2342 161:1244 162:3349 163:1083 164:1629 165:1467 166:592 167:1657 168:3645 169:689 170:4340 171:807 172:2760 173:2958 174:1000 175:1116 176:3344 177:4539 178:3009 179:1915 180:2255 181:2679 182:3121 183:2011 184:2417 185:18926 186:4209 187:3173 188:3444 189:2906 190:8633 191:1314 192:10695 193:8382 194:6845 195:4871 196:2890 197:2132 198:6031 199:5926 200:7335 201:5492 202:10488 203:10061 204:4512 205:3387 206:4062 207:3354 208:3996 209:4735 210:4199 211:2354 212:3750 213:3371 214:1165 215:61 216:6376 217:2624 218:1219 219:650 220:1947 221:977 222:853 223:2052 End of report

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New on RIPE Labs: Hunting Routing Resources with IRRHound
by Alun Davies 11 Oct '21

11 Oct '21

Dear colleagues, In this guest post on RIPE Labs, Francesco Ferreri introduces IRRHound, a new package from Namex for tracking routing resources across multiple IRR sources: https://labs.ripe.net/author/francesco-ferreri/hunting-routing-resources-wi… Kind regards, Alun Davies RIPE Labs Editor RIPE NCC

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Weekly Global IPv4 Routing Table Report
by cscora＠apnic.net 08 Oct '21

08 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 09 Oct, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 865799 Prefixes after maximum aggregation (per Origin AS): 328037 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 417220 Total ASes present in the Internet Routing Table: 72037 Prefixes per ASN: 12.02 Origin-only ASes present in the Internet Routing Table: 61895 Origin ASes announcing only one prefix: 25518 Transit ASes present in the Internet Routing Table: 10142 Transit-only ASes present in the Internet Routing Table: 342 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 53 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 977 Number of instances of unregistered ASNs: 981 Number of 32-bit ASNs allocated by the RIRs: 37427 Number of 32-bit ASNs visible in the Routing Table: 31091 Prefixes from 32-bit ASNs in the Routing Table: 144662 Number of bogon 32-bit ASNs visible in the Routing Table: 28 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 515 Number of addresses announced to Internet: 3069966592 Equivalent to 182 /8s, 251 /16s and 249 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 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: 287724 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231808 Total APNIC prefixes after maximum aggregation: 66263 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 227275 Unique aggregates announced from the APNIC address blocks: 92050 APNIC Region origin ASes present in the Internet Routing Table: 12003 APNIC Prefixes per ASN: 18.93 APNIC Region origin ASes announcing only one prefix: 3416 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: 7169 Number of APNIC addresses announced to Internet: 772148352 Equivalent to 46 /8s, 6 /16s and 12 /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, 131072-147769 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: 253515 Total ARIN prefixes after maximum aggregation: 116297 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 253446 Unique aggregates announced from the ARIN address blocks: 120928 ARIN Region origin ASes present in the Internet Routing Table: 18893 ARIN Prefixes per ASN: 13.41 ARIN Region origin ASes announcing only one prefix: 6851 ARIN Region transit ASes present in the Internet Routing Table: 1943 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: 4146 Number of ARIN addresses announced to Internet: 1301072384 Equivalent to 77 /8s, 140 /16s and 202 /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: 241164 Total RIPE prefixes after maximum aggregation: 112909 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 237322 Unique aggregates announced from the RIPE address blocks: 145502 RIPE Region origin ASes present in the Internet Routing Table: 28061 RIPE Prefixes per ASN: 8.46 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 3896 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10443 Number of RIPE addresses announced to Internet: 711814272 Equivalent to 42 /8s, 109 /16s and 108 /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: 111884 Total LACNIC prefixes after maximum aggregation: 26638 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 112798 Unique aggregates announced from the LACNIC address blocks: 47315 LACNIC Region origin ASes present in the Internet Routing Table: 10781 LACNIC Prefixes per ASN: 10.46 LACNIC Region origin ASes announcing only one prefix: 2628 LACNIC Region transit ASes present in the Internet Routing Table: 2135 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: 8454 Number of LACNIC addresses announced to Internet: 176666880 Equivalent to 10 /8s, 135 /16s and 185 /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: 26451 Total AfriNIC prefixes after maximum aggregation: 5204 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 34443 Unique aggregates announced from the AfriNIC address blocks: 10996 AfriNIC Region origin ASes present in the Internet Routing Table: 1548 AfriNIC Prefixes per ASN: 22.25 AfriNIC Region origin ASes announcing only one prefix: 540 AfriNIC Region transit ASes present in the Internet Routing Table: 306 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: 879 Number of AfriNIC addresses announced to Internet: 107914496 Equivalent to 6 /8s, 110 /16s and 165 /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 8045 9000 57 CMNET-GD Guangdong Mobile Communication 7545 5835 786 680 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3619 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3494 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3027 1896 55 VNPT-AS-VN VNPT Corp, VN 4766 2505 11119 576 KIXS-AS-KR Korea Telecom, KR 9498 2173 472 237 BBIL-AP BHARTI Airtel Ltd., IN 45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 4755 2126 437 202 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 5665 9813 2489 AMAZON-02, US 11492 4681 310 767 CABLEONE, US 22773 4099 3057 383 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3636 1880 2536 AKAMAI-AS, US 6327 3374 1319 67 SHAW, CA 30036 2588 374 179 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2533 5028 453 CENTURYLINK-US-LEGACY-QWEST, US 20115 2241 3032 504 CHARTER-20115, US 7018 2229 24160 1424 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 6846 1726 143 UNI2-AS, ES 20940 3863 3348 214 AKAMAI-ASN1, NL 8551 3277 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3269 187 23 ALJAWWALSTC-AS, SA 12389 2919 2279 896 ROSTELECOM-AS, RU 9009 2485 258 1311 M247, GB 34984 2233 358 603 TELLCOM-AS, TR 58224 1681 899 581 TCI, IR 61317 1637 257 912 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 8878 3459 570 Uninet S.A. de C.V., MX 10620 3409 519 711 Telmex Colombia S.A., CO 11830 2498 369 62 Instituto Costarricense de Electricidad 13999 1698 337 462 Mega Cable, S.A. de C.V., MX 6503 1522 359 477 Axtel, S.A.B. de C.V., MX 28573 1465 2309 242 CLARO S.A., BR 3816 1241 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1146 2351 136 TIM SA, BR 6147 1090 370 22 Telefonica del Peru S.A.A., PE 11172 957 111 70 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 1529 503 32 RAYA-AS, EG 36992 1287 1418 270 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 800 68 11 ORANGE-COTE-IVOIRE, CI 36935 630 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 504 50 30 WANANCHI-, KE 37342 471 32 1 MOVITEL, MZ 2018 344 319 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 8878 3459 570 Uninet S.A. de C.V., MX 9808 8045 9000 57 CMNET-GD Guangdong Mobile Communication 12479 6846 1726 143 UNI2-AS, ES 7545 5835 786 680 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5665 9813 2489 AMAZON-02, US 4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese 11492 4681 310 767 CABLEONE, US 22773 4099 3057 383 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3863 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 8045 7988 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6846 6703 UNI2-AS, ES 7545 5835 5155 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4713 4639 ERX-CERNET-BKB China Education and Research Net 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4681 3914 CABLEONE, US 22773 4099 3716 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3863 3649 AKAMAI-ASN1, NL 7552 3619 3599 VIETEL-AS-AP Viettel Group, VN 7713 3494 3438 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 23.136.80.0/24 Origin: 20119 ARROW, CA 23.136.80.0/24 Transit: 6939 HURRICANE, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.247.168.0/24 Origin: 142632 NASULEX-AS-AP Nasulex, NL 23.247.168.0/24 Transit: 53667 PONYNET, 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 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 /14:1215 /15:2042 /16:13602 /17:8301 /18:14055 /19:25519 /20:42808 /21:51147 /22:107029 /23:92523 /24:505038 /25:1454 /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 5798 6846 UNI2-AS, ES 11492 3620 4681 CABLEONE, US 8151 3256 8878 Uninet S.A. de C.V., MX 6327 3181 3374 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 3022 4099 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2805 3269 ALJAWWALSTC-AS, SA 8551 2743 3277 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2242 2588 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) ---------------------------------------------- 1:1927 2:1054 3:145 4:19 5:3654 6:85 7:5 8:1547 9:1 11:172 12:1712 13:391 14:2281 15:114 16:24 17:368 18:121 20:126 21:4 22:188 23:5169 24:2432 25:2 27:2559 29:19 31:2340 32:112 34:1 35:47 36:1718 37:3904 38:2269 39:602 40:151 41:3809 42:1037 43:2077 44:286 45:15493 46:3719 47:320 48:3 49:1678 50:1833 51:99 52:1288 54:247 55:711 56:4 57:54 58:1746 59:1186 60:933 61:2291 62:2265 63:1964 64:5373 65:2360 66:4948 67:2865 68:1158 69:4126 70:1361 71:678 72:3151 74:2614 75:1492 76:693 77:2030 78:1722 79:2607 80:1871 81:1537 82:1366 83:1158 84:1291 85:2833 86:725 87:1846 88:982 89:3058 90:499 91:7369 92:1843 93:2553 94:3165 95:3521 96:1300 97:347 98:975 99:960 100:75 101:1039 102:1690 103:27070 104:4063 105:438 106:823 107:2368 108:731 109:3871 110:2045 111:3130 112:1939 113:1409 114:1501 115:1934 116:1839 117:2410 118:2308 119:1893 120:1561 121:1080 122:2533 123:2170 124:1593 125:2051 128:1379 129:1314 130:899 131:2020 132:775 133:363 134:1862 135:318 136:792 137:862 138:2397 139:1192 140:761 141:1244 142:1180 143:1373 144:1266 145:326 146:1546 147:1443 148:2154 149:1509 150:831 151:1088 152:1659 153:427 154:3104 155:1327 156:1830 157:1183 158:1006 159:2035 160:2349 161:1247 162:3367 163:1083 164:1559 165:1445 166:593 167:1651 168:3647 169:682 170:4327 171:806 172:2750 173:2950 174:999 175:1121 176:3322 177:4542 178:3004 179:1920 180:2259 181:2669 182:3115 183:2011 184:2430 185:18917 186:4239 187:3178 188:3438 189:2900 190:8661 191:1299 192:10694 193:8370 194:6838 195:4878 196:2903 197:2124 198:6032 199:5926 200:7358 201:5488 202:10522 203:10083 204:4499 205:3379 206:4059 207:3352 208:4017 209:4735 210:4190 211:2362 212:3768 213:3364 214:1162 215:61 216:6354 217:2611 218:1219 219:670 220:1946 221:977 222:855 223:2050 End of report

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