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 01 Mar, 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: 993489 Prefixes after maximum aggregation (per Origin AS): 372965 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 475356 Number of IPv4 prefixes with a valid ROA: 545455 Number of IPv4 prefixes with an invalid ROA: 625 Number of IPv4 prefixes with no ROA: 447409 Total ASes present in the Internet Routing Table: 76663 Prefixes per ASN: 12.96 Origin-only ASes present in the Internet Routing Table: 65797 Origin ASes announcing only one prefix: 26531 Transit ASes present in the Internet Routing Table: 10866 Transit-only ASes present in the Internet Routing Table: 538 Paths with bogon ASNs present in the IPv4 Routing Table: 85 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: 1013 Number of instances of unregistered ASNs: 1018 Number of 32-bit ASNs allocated by the RIRs: 46217 Number of 32-bit ASNs visible in the Routing Table: 37929 Prefixes from 32-bit ASNs in the Routing Table: 205500 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 498 Number of addresses announced to Internet: 3109788672 Equivalent to 185 /8s, 91 /16s and 156 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 328358 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256882 Total APNIC prefixes after maximum aggregation: 76037 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 248906 Unique aggregates announced from the APNIC address blocks: 102624 APNIC Region origin ASes present in the Internet Routing Table: 14511 APNIC Prefixes per ASN: 17.15 APNIC Region origin ASes announcing only one prefix: 4423 APNIC Region transit ASes present in the Internet Routing Table: 1932 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10026 Number of APNIC addresses announced to Internet: 749834752 Equivalent to 44 /8s, 177 /16s and 146 /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: 290166 Total ARIN prefixes after maximum aggregation: 127739 ARIN Deaggregation factor: 2.27 Prefixes being announced from the ARIN address blocks: 291825 Unique aggregates announced from the ARIN address blocks: 135924 ARIN Region origin ASes present in the Internet Routing Table: 19218 ARIN Prefixes per ASN: 15.18 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1965 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5167 Number of ARIN addresses announced to Internet: 1348288768 Equivalent to 80 /8s, 93 /16s and 65 /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: 275688 Total RIPE prefixes after maximum aggregation: 132422 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 272903 Unique aggregates announced from the RIPE address blocks: 172449 RIPE Region origin ASes present in the Internet Routing Table: 28896 RIPE Prefixes per ASN: 9.44 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 3954 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12305 Number of RIPE addresses announced to Internet: 732792832 Equivalent to 43 /8s, 173 /16s and 136 /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: 132198 Total LACNIC prefixes after maximum aggregation: 29213 LACNIC Deaggregation factor: 4.53 Prefixes being announced from the LACNIC address blocks: 128904 Unique aggregates announced from the LACNIC address blocks: 48775 LACNIC Region origin ASes present in the Internet Routing Table: 11207 LACNIC Prefixes per ASN: 11.50 LACNIC Region origin ASes announcing only one prefix: 2349 LACNIC Region transit ASes present in the Internet Routing Table: 2473 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: 9149 Number of LACNIC addresses announced to Internet: 173794304 Equivalent to 10 /8s, 91 /16s and 228 /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: 37542 Total AfriNIC prefixes after maximum aggregation: 6909 AfriNIC Deaggregation factor: 5.43 Prefixes being announced from the AfriNIC address blocks: 50453 Unique aggregates announced from the AfriNIC address blocks: 15147 AfriNIC Region origin ASes present in the Internet Routing Table: 1918 AfriNIC Prefixes per ASN: 26.31 AfriNIC Region origin ASes announcing only one prefix: 663 AfriNIC Region transit ASes present in the Internet Routing Table: 379 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: 1282 Number of AfriNIC addresses announced to Internet: 104825856 Equivalent to 6 /8s, 63 /16s and 132 /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 10323 8753 87 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4323 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4215 530 273 BBIL-AP BHARTI Airtel Ltd., IN 7552 3921 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2842 855 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2171 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2148 434 191 TATACOMM-AS TATA Communications formerly 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 12823 39187 3773 AMAZON-02, US 174 5215 8763 939 COGENT-174, US 11492 4704 312 566 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3619 1320 81 SHAW, CA 22773 3373 3033 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3260 54879 2507 DNIC-AS-00749, US 16625 3055 1300 2226 AKAMAI-AS, US 396982 2934 3660 452 GOOGLE-CLOUD-PLATFORM, US 30036 2580 358 337 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 7758 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3996 3395 129 AKAMAI-ASN1, NL 9009 3762 322 1926 M247, RO 12389 2984 2303 894 ROSTELECOM-AS, RU 34984 2367 361 580 TELLCOM-AS, TR 212238 2007 145 1482 CDNEXT, GB 8452 1617 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1485 98 744 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 11824 3235 589 UNINET, MX 10620 3547 492 953 Telmex Colombia S.A., CO 13999 2513 539 370 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1350 2436 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1172 371 22 Telefonica del Peru S.A.A., PE 11664 1167 278 33 Techtel LMDS Comunicaciones Interactivas 28202 1132 52 9 Rede Brasileira de Comunicacao SA, BR 6503 1129 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 1619 389 16 LINKdotNET-AS, EG 29571 1570 99 102 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 20011 1292 202 342 INTERNET-SOLUTIONS, ZA 36903 1249 554 96 MT-MPLS, MA 36935 1013 523 45 Vodafone-, EG 37069 847 1083 15 MOBINIL, EG 37457 587 316 32 Telkom-Internet, ZA 3741 557 661 318 IS, ZA 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 12823 39187 3773 AMAZON-02, US 8151 11824 3235 589 UNINET, MX 9808 10323 8753 87 CHINAMOBILE-CN China Mobile Communication 12479 7758 1714 145 UNI2-AS, ES 7545 6212 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5215 8763 939 COGENT-174, US 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4704 312 566 CABLEONE, US 18403 4323 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4215 530 273 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 11824 11235 UNINET, MX 9808 10323 10236 CHINAMOBILE-CN China Mobile Communications Grou 12479 7758 7613 UNI2-AS, ES 7545 6212 5556 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4323 4298 FPT-AS-AP FPT Telecom Company, VN 174 5215 4276 COGENT-174, US 11492 4704 4138 CABLEONE, US 7155 4175 4092 VIASAT-SP-BACKBONE, US 9498 4215 3942 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 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 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, 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 /12:304 /13:586 /14:1230 /15:2187 /16:14028 /17:8351 /18:13892 /19:24763 /20:44423 /21:52675 /22:113479 /23:105113 /24:612292 /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 6712 7758 UNI2-AS, ES 8151 5998 11824 UNINET, MX 11492 3555 4704 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3416 3619 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2510 3373 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2279 12823 AMAZON-02, US 30036 2240 2580 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2187 3547 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) ---------------------------------------------- 1:2300 2:1524 3:576 4:10 5:4842 6:167 7:6 8:1552 9:1 11:172 12:1379 13:351 14:2510 15:350 16:277 17:357 18:921 20:461 21:4 22:188 23:7351 24:2770 25:2 27:2740 29:19 31:3207 32:43 34:82 35:202 36:2414 37:4633 38:10009 39:898 40:153 41:4449 42:1976 43:2549 44:349 45:19120 46:5038 47:291 49:1984 50:1891 51:589 52:1571 54:302 55:917 56:9 57:252 58:2223 59:1205 60:1167 61:3000 62:2969 63:1843 64:5532 65:2191 66:4701 67:3079 68:1119 69:4002 70:1106 71:616 72:2944 74:2800 75:1652 76:611 77:2788 78:1862 79:1725 80:2221 81:2041 82:2704 83:1404 84:1810 85:3371 86:1031 87:2419 88:1302 89:4323 90:778 91:8392 92:2809 93:2904 94:3918 95:4264 96:1344 97:318 98:973 99:740 100:71 101:1383 102:4168 103:32440 104:4810 105:1230 106:996 107:2594 108:1212 109:4134 110:2223 111:3317 112:2045 113:1808 114:1948 115:2202 116:2076 117:2757 118:2801 119:1960 120:1881 121:1361 122:2782 123:2322 124:1585 125:2871 126:90 128:1585 129:1026 130:1299 131:1904 132:798 133:449 134:1531 135:373 136:1310 137:1116 138:3059 139:1616 140:1562 141:1484 142:1847 143:1637 144:1049 145:473 146:2146 147:2071 148:2601 149:2944 150:1246 151:1705 152:2123 153:574 154:7800 155:1622 156:3247 157:1901 158:1265 159:2434 160:3635 161:1959 162:3705 163:1864 164:1727 165:2188 166:1364 167:1898 168:4217 169:803 170:5286 171:1001 172:4406 173:3261 174:914 175:1283 176:3670 177:5471 178:3823 179:2410 180:2609 181:4144 182:3377 183:2051 184:2310 185:21657 186:5425 187:4710 188:4218 189:4404 190:9839 191:1933 192:11179 193:9436 194:7818 195:5613 196:3598 197:3808 198:6127 199:8395 200:8469 201:6407 202:10453 203:10657 204:4544 205:3629 206:4633 207:3478 208:4206 209:5187 210:4594 211:2521 212:4536 213:3804 214:1054 215:42 216:6613 217:3176 218:1353 219:386 220:2098 221:1055 222:715 223:2323 End of report