IPv4 R&E Routing Table Report 23:00 GMT Thu 26 Oct, 2023 IPv4 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: 925014 Prefixes after maximum aggregation (per Origin AS): 353286 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 453322 Number of IPv4 prefixes with a valid ROA: 425775 Number of IPv4 prefixes with an invalid ROA: 1612 Number of IPv4 prefixes with no ROA: 497627 Total ASes present in the Internet Routing Table: 74540 Prefixes per ASN: 12.41 Origin-only ASes present in the Internet Routing Table: 63979 Origin ASes announcing only one prefix: 26440 Transit ASes present in the Internet Routing Table: 10561 Transit-only ASes present in the Internet Routing Table: 468 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 106 Max AS path prepend of ASN ( 37447) 103 Prefixes from unregistered ASNs in the Routing Table: 1047 Number of instances of unregistered ASNs: 1050 Number of 32-bit ASNs allocated by the RIRs: 42918 Number of 32-bit ASNs visible in the Routing Table: 34970 Prefixes from 32-bit ASNs in the Routing Table: 174954 Number of bogon 32-bit ASNs visible in the Routing Table: 11 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 515 Number of addresses announced to Internet: 3050708736 Equivalent to 181 /8s, 214 /16s and 31 /24s Percentage of available address space announced: 82.4 Percentage of allocated address space announced: 82.4 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 309154 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 240861 Total APNIC prefixes after maximum aggregation: 70090 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 234399 Unique aggregates announced from the APNIC address blocks: 98340 APNIC Region origin ASes present in the Internet Routing Table: 13369 APNIC Prefixes per ASN: 17.53 APNIC Region origin ASes announcing only one prefix: 4078 APNIC Region transit ASes present in the Internet Routing Table: 1809 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8774 Number of APNIC addresses announced to Internet: 771343616 Equivalent to 45 /8s, 249 /16s and 197 /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, 131072-153913 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: 272385 Total ARIN prefixes after maximum aggregation: 123796 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 276443 Unique aggregates announced from the ARIN address blocks: 132247 ARIN Region origin ASes present in the Internet Routing Table: 19041 ARIN Prefixes per ASN: 14.52 ARIN Region origin ASes announcing only one prefix: 6969 ARIN Region transit ASes present in the Internet Routing Table: 1901 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4810 Number of ARIN addresses announced to Internet: 1276625664 Equivalent to 76 /8s, 23 /16s and 195 /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: 261675 Total RIPE prefixes after maximum aggregation: 124254 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 256560 Unique aggregates announced from the RIPE address blocks: 160389 RIPE Region origin ASes present in the Internet Routing Table: 28436 RIPE Prefixes per ASN: 9.02 RIPE Region origin ASes announcing only one prefix: 12082 RIPE Region transit ASes present in the Internet Routing Table: 3955 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 102 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11384 Number of RIPE addresses announced to Internet: 716599040 Equivalent to 42 /8s, 182 /16s and 111 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 118754 Total LACNIC prefixes after maximum aggregation: 28444 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 117707 Unique aggregates announced from the LACNIC address blocks: 49249 LACNIC Region origin ASes present in the Internet Routing Table: 11028 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2686 LACNIC Region transit ASes present in the Internet Routing Table: 2358 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8861 Number of LACNIC addresses announced to Internet: 178237952 Equivalent to 10 /8s, 159 /16s and 178 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 30292 Total AfriNIC prefixes after maximum aggregation: 5981 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 39390 Unique aggregates announced from the AfriNIC address blocks: 12666 AfriNIC Region origin ASes present in the Internet Routing Table: 1799 AfriNIC Prefixes per ASN: 21.90 AfriNIC Region origin ASes announcing only one prefix: 625 AfriNIC Region transit ASes present in the Internet Routing Table: 338 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 106 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1141 Number of AfriNIC addresses announced to Internet: 107479296 Equivalent to 6 /8s, 104 /16s and 1 /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 9476 8729 40 CHINAMOBILE-CN China Mobile Communicati 7545 5715 785 694 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4226 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3612 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3603 1046 69 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3322 1840 100 VNPT-AS-VN VNPT Corp, VN 9498 3230 492 239 BBIL-AP BHARTI Airtel Ltd., IN 24560 2555 850 379 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11269 604 KIXS-AS-KR Korea Telecom, KR 4755 2191 442 203 TATACOMM-AS TATA Communications formerl 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 9177 11024 3291 AMAZON-02, US 11492 4538 301 673 CABLEONE, US 7155 4160 288 96 VIASAT-SP-BACKBONE, US 6327 3555 1320 67 SHAW, CA 22773 3522 3056 304 ASN-CXA-ALL-CCI-22773-RDC, US 749 3161 54958 2413 DNIC-AS-00749, US 367 3082 3852 1434 DNIC-ASBLK-00306-00371, US 16625 3004 1382 2288 AKAMAI-AS, US 396982 2706 3598 397 GOOGLE-CLOUD-PLATFORM, US 7018 2545 23614 1596 ATT-INTERNET4, 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 7420 1713 145 UNI2-AS, ES 39891 4570 271 54 ALJAWWALSTC-AS, SA 20940 4082 3397 147 AKAMAI-ASN1, NL 8551 3447 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 9009 3121 278 1532 M247, RO 12389 2891 2295 912 ROSTELECOM-AS, RU 34984 2322 361 592 TELLCOM-AS, TR 58224 1684 916 545 TCI, IR 13188 1606 100 27 TRIOLAN, UA 8452 1522 1852 14 TE-AS TE-AS, EG 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 11925 3373 611 UNINET, MX 10620 3540 504 856 Telmex Colombia S.A., CO 13999 2430 335 634 Mega Cable, S.A. de C.V., MX 11830 2005 369 64 Instituto Costarricense de Electricidad 28573 1331 2322 236 Claro NXT Telecomunicacoes Ltda, BR 3816 1299 770 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1251 342 506 Axtel, S.A.B. de C.V., MX 6147 1111 369 22 Telefonica del Peru S.A.A., PE 11664 1065 170 433 Techtel LMDS Comunicaciones Interactiva 26615 1040 2501 51 TIM SA, BR 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 1604 393 19 LINKdotNET-AS, EG 24835 1549 549 28 RAYA-AS, EG 36992 1358 1518 280 ETISALAT-MISR, EG 36903 1248 553 98 MT-MPLS, MA 29571 1048 67 46 ORANGE-COTE-IVOIRE, CI 36935 938 521 44 Vodafone-, EG 6713 552 1861 34 IAM-AS, MA 15399 537 55 51 WANANCHI-, KE 37342 495 32 1 MOVITEL, MZ 24757 479 73 5 EthioNet-AS, ET 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 11925 3373 611 UNINET, MX 9808 9476 8729 40 CHINAMOBILE-CN China Mobile Communicati 16509 9177 11024 3291 AMAZON-02, US 12479 7420 1713 145 UNI2-AS, ES 7545 5715 785 694 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 271 54 ALJAWWALSTC-AS, SA 11492 4538 301 673 CABLEONE, US 18403 4226 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4160 288 96 VIASAT-SP-BACKBONE, US 20940 4082 3397 147 AKAMAI-ASN1, NL 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 9476 9436 CHINAMOBILE-CN China Mobile Communications Grou 12479 7420 7275 UNI2-AS, ES 16509 9177 5886 AMAZON-02, US 7545 5715 5021 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 4516 ALJAWWALSTC-AS, SA 18403 4226 4201 FPT-AS-AP FPT Telecom Company, VN 7155 4160 4064 VIASAT-SP-BACKBONE, US 20940 4082 3935 AKAMAI-ASN1, NL 11492 4538 3865 CABLEONE, US 7552 3612 3592 VIETEL-AS-AP Viettel Group, VN 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 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 40493 UNALLOCATED 8.17.26.0/24 17054 EXPEDIENT, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 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 Complete listing at https://bgp.nsrc.org/REN/London/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.176.160.0/24 Origin: 397327 RESERVED, ZZ 23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 Transit: 174 COGENT-174, US 36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road, 36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin 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 /9:14 /10:37 /11:100 /12:299 /13:579 /14:1193 /15:2089 /16:13444 /17:8241 /18:13706 /19:24811 /20:43277 /21:51171 /22:109813 /23:98628 /24:557586 /25:0 /26:2 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6508 7420 UNI2-AS, ES 8151 5951 11925 UNINET, MX 11492 3451 4538 CABLEONE, US 6327 3364 3555 SHAW, CA 39891 3324 4570 ALJAWWALSTC-AS, SA 7155 3108 4160 VIASAT-SP-BACKBONE, US 8551 2924 3447 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2577 3522 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2150 2495 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2114 3540 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2211 2:1438 3:269 4:5 5:4388 6:159 7:6 8:1500 9:1 11:172 12:1508 13:359 14:2304 15:306 16:201 17:362 18:667 20:308 21:4 22:188 23:6482 24:2524 25:2 27:2579 29:19 31:2536 32:72 34:27 35:115 36:2007 37:4469 38:5430 39:866 40:149 41:3972 42:2041 43:2252 44:325 45:16643 46:4319 47:371 49:1857 50:1874 51:578 52:1588 54:395 55:961 56:5 57:128 58:1800 59:1099 60:1009 61:2547 62:2656 63:1900 64:5514 65:2302 66:4962 67:3048 68:1345 69:4126 70:1183 71:627 72:2937 74:2623 75:1564 76:636 77:2322 78:1825 79:3007 80:2112 81:1835 82:1524 83:1304 84:1564 85:2999 86:766 87:1946 88:1203 89:3941 90:625 91:7876 92:2076 93:2626 94:3574 95:3994 96:1304 97:315 98:1083 99:735 100:91 101:1382 102:2946 103:31264 104:4785 105:577 106:979 107:2789 108:1134 109:4237 110:2130 111:3124 112:2057 113:1736 114:1677 115:1987 116:1898 117:2513 118:2696 119:1962 120:1761 121:1161 122:2605 123:2160 124:1559 125:2591 128:1400 129:904 130:1036 131:1968 132:854 133:408 134:1772 135:301 136:909 137:975 138:2679 139:1571 140:1317 141:1331 142:1534 143:1522 144:992 145:348 146:1963 147:1613 148:2472 149:2351 150:879 151:1238 152:1956 153:523 154:5141 155:1400 156:2007 157:1354 158:1059 159:2186 160:2622 161:1590 162:3501 163:1607 164:1683 165:1862 166:1060 167:1749 168:3824 169:791 170:4616 171:954 172:3873 173:2994 174:977 175:1187 176:3598 177:4505 178:3529 179:2125 180:2504 181:3580 182:3330 183:1983 184:2271 185:20628 186:4710 187:4187 188:4052 189:3907 190:9326 191:1387 192:10968 193:8953 194:7313 195:5217 196:3204 197:2560 198:5925 199:6349 200:7944 201:6205 202:10174 203:9981 204:4531 205:3676 206:4328 207:3399 208:4099 209:4875 210:4211 211:2448 212:4249 213:3393 214:1115 215:71 216:6702 217:2766 218:1274 219:407 220:1802 221:979 222:670 223:2146 End of report