This is an automated weekly mailing describing the state of the Global IPv4 Research & Education Routing Table received by NSRC's collector from Internet2's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . Global R&E Routing Table Report 23:00 GMT Sat 04 Dec, 2021 BGP Table (Global) as seen at London. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/London/ Analysis Summary ---------------- BGP routing table entries examined: 864879 Prefixes after maximum aggregation (per Origin AS): 328665 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 421680 Total ASes present in the Internet Routing Table: 72163 Prefixes per ASN: 11.99 Origin-only ASes present in the Internet Routing Table: 61951 Origin ASes announcing only one prefix: 25597 Transit ASes present in the Internet Routing Table: 10212 Transit-only ASes present in the Internet Routing Table: 379 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 54 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 843 Number of instances of unregistered ASNs: 846 Number of 32-bit ASNs allocated by the RIRs: 37991 Number of 32-bit ASNs visible in the Routing Table: 31472 Prefixes from 32-bit ASNs in the Routing Table: 145499 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 840 Number of addresses announced to Internet: 3072715520 Equivalent to 183 /8s, 37 /16s and 235 /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: 289520 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 225180 Total APNIC prefixes after maximum aggregation: 64262 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 220338 Unique aggregates announced from the APNIC address blocks: 92899 APNIC Region origin ASes present in the Internet Routing Table: 12039 APNIC Prefixes per ASN: 18.30 APNIC Region origin ASes announcing only one prefix: 3430 APNIC Region transit ASes present in the Internet Routing Table: 1685 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7289 Number of APNIC addresses announced to Internet: 773330432 Equivalent to 46 /8s, 24 /16s and 22 /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: 255007 Total ARIN prefixes after maximum aggregation: 117611 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 254589 Unique aggregates announced from the ARIN address blocks: 122130 ARIN Region origin ASes present in the Internet Routing Table: 18847 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 6844 ARIN Region transit ASes present in the Internet Routing Table: 1893 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4224 Number of ARIN addresses announced to Internet: 1300684800 Equivalent to 77 /8s, 134 /16s and 224 /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: 243429 Total RIPE prefixes after maximum aggregation: 113935 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 239585 Unique aggregates announced from the RIPE address blocks: 147017 RIPE Region origin ASes present in the Internet Routing Table: 28150 RIPE Prefixes per ASN: 8.51 RIPE Region origin ASes announcing only one prefix: 12150 RIPE Region transit ASes present in the Internet Routing Table: 3974 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10557 Number of RIPE addresses announced to Internet: 713544960 Equivalent to 42 /8s, 135 /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: 113012 Total LACNIC prefixes after maximum aggregation: 26930 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 113859 Unique aggregates announced from the LACNIC address blocks: 47582 LACNIC Region origin ASes present in the Internet Routing Table: 10808 LACNIC Prefixes per ASN: 10.53 LACNIC Region origin ASes announcing only one prefix: 2623 LACNIC Region transit ASes present in the Internet Routing Table: 2148 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 54 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8493 Number of LACNIC addresses announced to Internet: 176284160 Equivalent to 10 /8s, 129 /16s and 226 /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: 27408 Total AfriNIC prefixes after maximum aggregation: 5288 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 35668 Unique aggregates announced from the AfriNIC address blocks: 11286 AfriNIC Region origin ASes present in the Internet Routing Table: 1582 AfriNIC Prefixes per ASN: 22.55 AfriNIC Region origin ASes announcing only one prefix: 550 AfriNIC Region transit ASes present in the Internet Routing Table: 313 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 909 Number of AfriNIC addresses announced to Internet: 108331008 Equivalent to 6 /8s, 117 /16s and 0 /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 8728 8999 54 CHINAMOBILE-CN China Mobile Communicati 7545 5855 787 678 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3588 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3484 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3241 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2249 11374 574 KIXS-AS-KR Korea Telecom, KR 9498 2190 475 238 BBIL-AP BHARTI Airtel Ltd., IN 4755 2117 429 200 TATACOMM-AS TATA Communications formerl 45090 2103 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 24560 1997 840 366 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6022 10031 2578 AMAZON-02, US 11492 4594 304 819 CABLEONE, US 22773 4014 3046 369 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3670 1892 2553 AKAMAI-AS, US 6327 3389 1318 63 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2605 374 127 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2525 5043 436 CENTURYLINK-US-LEGACY-QWEST, US 20115 2236 3032 502 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6854 1733 150 UNI2-AS, ES 20940 3873 3360 190 AKAMAI-ASN1, NL 8551 3454 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2889 2279 898 ROSTELECOM-AS, RU 9009 2565 264 1346 M247, GB 34984 2203 355 597 TELLCOM-AS, TR 58224 1755 917 577 TCI, IR 61317 1658 215 936 ASDETUK www.heficed.com, GB 13188 1610 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10496 3450 583 Uninet S.A. de C.V., MX 10620 3251 491 832 Telmex Colombia S.A., CO 11830 2469 369 62 Instituto Costarricense de Electricidad 13999 1623 286 456 Mega Cable, S.A. de C.V., MX 6503 1436 355 523 Axtel, S.A.B. de C.V., MX 28573 1363 2317 261 CLARO S.A., BR 3816 1239 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1133 2350 136 TIM SA, BR 6147 1089 370 21 Telefonica del Peru S.A.A., PE 11664 981 189 442 Techtel LMDS Comunicaciones Interactiva Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1617 393 21 LINKdotNET-AS, EG 24835 1549 499 32 RAYA-AS, EG 36992 1287 1430 268 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 825 68 11 ORANGE-COTE-IVOIRE, CI 36935 704 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 517 50 31 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 424 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10496 3450 583 Uninet S.A. de C.V., MX 9808 8728 8999 54 CHINAMOBILE-CN China Mobile Communicati 12479 6854 1733 150 UNI2-AS, ES 16509 6022 10031 2578 AMAZON-02, US 7545 5855 787 678 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4594 304 819 CABLEONE, US 22773 4014 3046 369 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3873 3360 190 AKAMAI-ASN1, NL 16625 3670 1892 2553 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8728 8674 CHINAMOBILE-CN China Mobile Communications Grou 12479 6854 6704 UNI2-AS, ES 7545 5855 5177 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4594 3775 CABLEONE, US 20940 3873 3683 AKAMAI-ASN1, NL 22773 4014 3645 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3588 3569 VIETEL-AS-AP Viettel Group, VN 16509 6022 3444 AMAZON-02, US 7713 3484 3428 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at https://bgp.nsrc.org/REN/London/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 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 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/London/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE Complete listing at https://bgp.nsrc.org/REN/London/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 /10:40 /11:99 /12:302 /13:594 /14:1205 /15:2080 /16:13527 /17:8239 /18:13767 /19:24871 /20:41761 /21:50338 /22:106983 /23:93269 /24:507767 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5785 6854 UNI2-AS, ES 8151 4327 10496 Uninet S.A. de C.V., MX 11492 3547 4594 CABLEONE, US 6327 3199 3389 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 2992 4014 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2919 3454 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2260 2605 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1924 2469 Instituto Costarricense de Electricidad y Telec Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1895 2:1019 3:144 4:18 5:3706 6:100 7:5 8:1509 11:172 12:1706 13:408 14:2293 15:133 16:32 17:374 18:130 20:142 21:4 22:188 23:5314 24:2335 25:4 27:2565 29:19 31:2376 32:103 34:1 35:48 36:1730 37:3916 38:2379 39:659 40:148 41:3891 42:1034 43:2077 44:294 45:15629 46:3681 47:270 49:1642 50:1876 51:104 52:1345 54:289 55:728 56:4 57:56 58:1633 59:1043 60:940 61:2253 62:2387 63:1949 64:5394 65:2308 66:4904 67:2908 68:1183 69:4096 70:1344 71:675 72:3076 74:2605 75:1501 76:711 77:2132 78:1747 79:2705 80:1889 81:1479 82:1412 83:1173 84:1286 85:2817 86:700 87:1891 88:976 89:3111 90:478 91:7490 92:1881 93:2565 94:3219 95:3603 96:1294 97:343 98:984 99:899 100:76 101:1303 102:1832 103:27506 104:4081 105:429 106:846 107:2384 108:742 109:3993 110:2045 111:3099 112:1965 113:1443 114:1528 115:1978 116:1879 117:2465 118:2295 119:1879 120:1583 121:999 122:2514 123:2113 124:1543 125:1978 128:1321 129:1106 130:900 131:2071 132:769 133:364 134:1904 135:286 136:799 137:857 138:2435 139:1205 140:807 141:1315 142:1222 143:1372 144:1255 145:329 146:1700 147:1463 148:2201 149:1568 150:849 151:1064 152:1655 153:443 154:3398 155:1351 156:1847 157:1198 158:988 159:2021 160:2333 161:1271 162:3402 163:1173 164:1662 165:1520 166:606 167:1678 168:3625 169:678 170:4290 171:810 172:2875 173:3032 174:1006 175:1076 176:3418 177:4489 178:3011 179:1984 180:2315 181:2638 182:3110 183:1921 184:2411 185:19070 186:4251 187:3536 188:3492 189:3126 190:8700 191:1328 192:10987 193:8439 194:6882 195:4924 196:2904 197:2345 198:5953 199:5976 200:7375 201:5542 202:10202 203:10008 204:4491 205:3373 206:3753 207:3296 208:3990 209:4611 210:3986 211:2305 212:3865 213:3406 214:1157 215:62 216:6353 217:2600 218:1189 219:455 220:1693 221:983 222:678 223:2107 End of report