This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RENU'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 . IPv4 R&E Routing Table Report 18:40 GMT Sat 22 Feb, 2025 IPv4 BGP Table (Global) as seen at RENU. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RENU/ Analysis Summary ---------------- BGP routing table entries examined: 992962 Prefixes after maximum aggregation (per Origin AS): 372743 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 475670 Number of IPv4 prefixes with a valid ROA: 543434 Number of IPv4 prefixes with an invalid ROA: 883 Number of IPv4 prefixes with no ROA: 448645 Total ASes present in the Internet Routing Table: 76642 Prefixes per ASN: 12.96 Origin-only ASes present in the Internet Routing Table: 65798 Origin ASes announcing only one prefix: 26493 Transit ASes present in the Internet Routing Table: 10844 Transit-only ASes present in the Internet Routing Table: 531 Paths with bogon ASNs present in the IPv4 Routing Table: 91 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 56 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1074 Number of instances of unregistered ASNs: 1079 Number of 32-bit ASNs allocated by the RIRs: 46175 Number of 32-bit ASNs visible in the Routing Table: 37869 Prefixes from 32-bit ASNs in the Routing Table: 205510 Number of bogon 32-bit ASNs visible in the Routing Table: 25 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 527 Number of addresses announced to Internet: 3112999680 Equivalent to 185 /8s, 140 /16s and 155 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 327997 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257021 Total APNIC prefixes after maximum aggregation: 76129 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 249091 Unique aggregates announced from the APNIC address blocks: 102743 APNIC Region origin ASes present in the Internet Routing Table: 14501 APNIC Prefixes per ASN: 17.18 APNIC Region origin ASes announcing only one prefix: 4419 APNIC Region transit ASes present in the Internet Routing Table: 1917 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10012 Number of APNIC addresses announced to Internet: 753375488 Equivalent to 44 /8s, 231 /16s and 153 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 289930 Total ARIN prefixes after maximum aggregation: 127579 ARIN Deaggregation factor: 2.27 Prefixes being announced from the ARIN address blocks: 292032 Unique aggregates announced from the ARIN address blocks: 135854 ARIN Region origin ASes present in the Internet Routing Table: 19216 ARIN Prefixes per ASN: 15.20 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 1961 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5150 Number of ARIN addresses announced to Internet: 1348481792 Equivalent to 80 /8s, 96 /16s and 51 /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, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 275430 Total RIPE prefixes after maximum aggregation: 132271 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 272516 Unique aggregates announced from the RIPE address blocks: 172827 RIPE Region origin ASes present in the Internet Routing Table: 28893 RIPE Prefixes per ASN: 9.43 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 3936 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12293 Number of RIPE addresses announced to Internet: 732325120 Equivalent to 43 /8s, 166 /16s and 101 /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, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 131998 Total LACNIC prefixes after maximum aggregation: 29173 LACNIC Deaggregation factor: 4.52 Prefixes being announced from the LACNIC address blocks: 128718 Unique aggregates announced from the LACNIC address blocks: 48830 LACNIC Region origin ASes present in the Internet Routing Table: 11204 LACNIC Prefixes per ASN: 11.49 LACNIC Region origin ASes announcing only one prefix: 2335 LACNIC Region transit ASes present in the Internet Routing Table: 2488 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9138 Number of LACNIC addresses announced to Internet: 173763328 Equivalent to 10 /8s, 91 /16s and 107 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 37509 Total AfriNIC prefixes after maximum aggregation: 6917 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 50078 Unique aggregates announced from the AfriNIC address blocks: 14992 AfriNIC Region origin ASes present in the Internet Routing Table: 1919 AfriNIC Prefixes per ASN: 26.10 AfriNIC Region origin ASes announcing only one prefix: 662 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 39 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1276 Number of AfriNIC addresses announced to Internet: 104789248 Equivalent to 6 /8s, 62 /16s and 245 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10334 8753 87 CHINAMOBILE-CN China Mobile Communication 7545 6210 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4240 530 275 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3672 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3262 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2846 854 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2171 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2150 11521 612 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12791 39190 3789 AMAZON-02, US 174 5390 8764 943 COGENT-174, US 11492 4705 312 562 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3620 1320 81 SHAW, CA 22773 3371 3033 180 ASN-CXA-ALL-CCI-22773-RDC, US 749 3260 54879 2507 DNIC-AS-00749, US 16625 3014 1296 2199 AKAMAI-AS, US 396982 2930 3660 449 GOOGLE-CLOUD-PLATFORM, US 30036 2590 359 278 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7770 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3974 3395 129 AKAMAI-ASN1, NL 9009 3736 320 1917 M247, RO 12389 2993 2303 893 ROSTELECOM-AS, RU 34984 2368 361 580 TELLCOM-AS, TR 212238 2016 147 1489 CDNEXT, GB 8452 1621 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1499 99 750 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11744 3213 603 UNINET, MX 10620 3545 492 952 Telmex Colombia S.A., CO 13999 2515 541 366 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1159 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1156 371 22 Telefonica del Peru S.A.A., PE 28202 1132 52 9 Rede Brasileira de Comunicacao SA, BR 6503 1130 374 163 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1683 599 30 RAYA-AS, EG 24863 1644 389 16 LINKdotNET-AS, EG 29571 1559 98 102 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 20011 1291 202 342 INTERNET-SOLUTIONS, ZA 36903 1249 554 96 MT-MPLS, MA 36935 997 521 42 Vodafone-, EG 37069 847 1083 15 MOBINIL, EG 37457 587 316 32 Telkom-Internet, ZA 6713 558 1861 35 IAM-AS, MA Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12791 39190 3789 AMAZON-02, US 8151 11744 3213 603 UNINET, MX 9808 10334 8753 87 CHINAMOBILE-CN China Mobile Communication 12479 7770 1714 145 UNI2-AS, ES 7545 6210 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5390 8764 943 COGENT-174, US 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4705 312 562 CABLEONE, US 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4240 530 275 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11744 11141 UNINET, MX 9808 10334 10247 CHINAMOBILE-CN China Mobile Communications Grou 12479 7770 7625 UNI2-AS, ES 7545 6210 5552 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 174 5390 4447 COGENT-174, US 18403 4263 4238 FPT-AS-AP FPT Telecom Company, VN 11492 4705 4143 CABLEONE, US 7155 4175 4092 VIASAT-SP-BACKBONE, US 9498 4240 3965 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/RENU/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US 46559 UNALLOCATED 8.3.52.0/23 3257 GTT-BACKBONE GTT, US 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 3356 LEVEL3, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, US 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 Complete listing at https://bgp.nsrc.org/REN/RENU/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 /9:16 /10:42 /11:92 /12:307 /13:587 /14:1229 /15:2184 /16:14010 /17:8360 /18:13875 /19:24736 /20:44413 /21:52678 /22:113491 /23:104897 /24:612029 /25:0 /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 6723 7770 UNI2-AS, ES 8151 5948 11744 UNINET, MX 11492 3556 4705 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3620 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2510 3371 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2281 12791 AMAZON-02, US 30036 2250 2590 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3545 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2301 2:1518 3:571 4:10 5:4813 6:163 7:6 8:1551 9:1 11:172 12:1378 13:349 14:2510 15:347 16:274 17:356 18:917 20:457 21:4 22:188 23:7347 24:2769 25:2 27:2737 29:19 31:3176 32:43 34:82 35:201 36:2414 37:4627 38:9932 39:897 40:157 41:4459 42:1945 43:2546 44:350 45:19048 46:5003 47:291 49:1984 50:1892 51:590 52:1571 54:300 55:1092 56:9 57:252 58:2230 59:1220 60:1167 61:3013 62:3007 63:1842 64:5539 65:2210 66:4697 67:3066 68:1124 69:4011 70:1108 71:617 72:2941 74:2804 75:1651 76:612 77:2780 78:1862 79:1731 80:2225 81:2050 82:2627 83:1422 84:1802 85:3362 86:1022 87:2421 88:1300 89:4321 90:763 91:8405 92:2804 93:2878 94:3925 95:4229 96:1364 97:318 98:979 99:742 100:71 101:1384 102:4132 103:32516 104:4813 105:1225 106:989 107:2588 108:1208 109:4126 110:2226 111:3317 112:2055 113:1816 114:1947 115:2203 116:2080 117:2745 118:2805 119:1962 120:1880 121:1362 122:2780 123:2318 124:1580 125:2875 126:94 128:1598 129:1021 130:1303 131:1905 132:798 133:450 134:1523 135:371 136:1338 137:1113 138:3049 139:1612 140:1568 141:1489 142:1848 143:1633 144:1063 145:472 146:2141 147:2064 148:2589 149:2944 150:1236 151:1682 152:2122 153:574 154:7852 155:1626 156:3150 157:1897 158:1252 159:2426 160:3644 161:1922 162:3701 163:1850 164:1716 165:2190 166:1351 167:1899 168:4207 169:802 170:5275 171:1000 172:4361 173:3276 174:917 175:1288 176:3667 177:5463 178:3829 179:2401 180:2615 181:4130 182:3369 183:2020 184:2305 185:21678 186:5444 187:4723 188:4250 189:4375 190:9812 191:1960 192:11172 193:9425 194:7820 195:5591 196:3580 197:3845 198:6116 199:8362 200:8477 201:6402 202:10469 203:10681 204:4546 205:3674 206:4639 207:3473 208:4210 209:5157 210:4636 211:2525 212:4546 213:3791 214:1056 215:42 216:6625 217:3166 218:1355 219:388 220:2111 221:1056 222:714 223:2321 End of report