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 15 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: 996202 Prefixes after maximum aggregation (per Origin AS): 374344 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 476283 Number of IPv4 prefixes with a valid ROA: 547820 Number of IPv4 prefixes with an invalid ROA: 1529 Number of IPv4 prefixes with no ROA: 446853 Total ASes present in the Internet Routing Table: 76679 Prefixes per ASN: 12.99 Origin-only ASes present in the Internet Routing Table: 65796 Origin ASes announcing only one prefix: 26481 Transit ASes present in the Internet Routing Table: 10883 Transit-only ASes present in the Internet Routing Table: 534 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: 1090 Number of instances of unregistered ASNs: 1094 Number of 32-bit ASNs allocated by the RIRs: 46121 Number of 32-bit ASNs visible in the Routing Table: 37967 Prefixes from 32-bit ASNs in the Routing Table: 206194 Number of bogon 32-bit ASNs visible in the Routing Table: 32 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 552 Number of addresses announced to Internet: 3111216384 Equivalent to 185 /8s, 113 /16s and 101 /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: 329028 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257830 Total APNIC prefixes after maximum aggregation: 76148 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 249566 Unique aggregates announced from the APNIC address blocks: 102758 APNIC Region origin ASes present in the Internet Routing Table: 14515 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4413 APNIC Region transit ASes present in the Internet Routing Table: 1942 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10034 Number of APNIC addresses announced to Internet: 749431040 Equivalent to 44 /8s, 171 /16s and 105 /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: 291480 Total ARIN prefixes after maximum aggregation: 128477 ARIN Deaggregation factor: 2.27 Prefixes being announced from the ARIN address blocks: 292764 Unique aggregates announced from the ARIN address blocks: 136434 ARIN Region origin ASes present in the Internet Routing Table: 19195 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7018 ARIN Region transit ASes present in the Internet Routing Table: 1960 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 31 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5155 Number of ARIN addresses announced to Internet: 1352541696 Equivalent to 80 /8s, 158 /16s and 38 /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: 276105 Total RIPE prefixes after maximum aggregation: 132840 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 273783 Unique aggregates announced from the RIPE address blocks: 173416 RIPE Region origin ASes present in the Internet Routing Table: 28922 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3959 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12339 Number of RIPE addresses announced to Internet: 732308224 Equivalent to 43 /8s, 166 /16s and 35 /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: 132255 Total LACNIC prefixes after maximum aggregation: 29310 LACNIC Deaggregation factor: 4.51 Prefixes being announced from the LACNIC address blocks: 128775 Unique aggregates announced from the LACNIC address blocks: 48752 LACNIC Region origin ASes present in the Internet Routing Table: 11205 LACNIC Prefixes per ASN: 11.49 LACNIC Region origin ASes announcing only one prefix: 2333 LACNIC Region transit ASes present in the Internet Routing Table: 2469 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: 9160 Number of LACNIC addresses announced to Internet: 171496448 Equivalent to 10 /8s, 56 /16s and 212 /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: 37442 Total AfriNIC prefixes after maximum aggregation: 6892 AfriNIC Deaggregation factor: 5.43 Prefixes being announced from the AfriNIC address blocks: 50762 Unique aggregates announced from the AfriNIC address blocks: 14464 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 26.55 AfriNIC Region origin ASes announcing only one prefix: 660 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1279 Number of AfriNIC addresses announced to Internet: 105178880 Equivalent to 6 /8s, 68 /16s and 231 /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 88 CHINAMOBILE-CN China Mobile Communication 7545 6208 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4374 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4261 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2841 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2169 434 194 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 12920 39642 3973 AMAZON-02, US 174 5528 8765 947 COGENT-174, US 11492 4654 309 616 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 6327 3619 1320 81 SHAW, CA 22773 3380 3033 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 16625 3037 1282 2211 AKAMAI-AS, US 396982 2943 3660 456 GOOGLE-CLOUD-PLATFORM, US 30036 2545 350 417 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 7755 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3982 3395 128 AKAMAI-ASN1, NL 9009 3773 323 1946 M247, RO 12389 3000 2303 890 ROSTELECOM-AS, RU 34984 2369 361 582 TELLCOM-AS, TR 212238 2042 147 1507 CDNEXT, GB 8452 1607 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 11859 3241 584 UNINET, MX 10620 3524 487 971 Telmex Colombia S.A., CO 13999 2507 539 368 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1156 278 33 Techtel LMDS Comunicaciones Interactivas 28202 1132 52 9 Rede Brasileira de Comunicacao SA, BR 6503 1070 359 174 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 1562 103 64 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 20011 1293 202 343 INTERNET-SOLUTIONS, ZA 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 37069 855 1083 15 MOBINIL, EG 37457 587 316 32 Telkom-Internet, ZA 6713 562 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 12920 39642 3973 AMAZON-02, US 8151 11859 3241 584 UNINET, MX 9808 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7755 1714 145 UNI2-AS, ES 7545 6208 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5528 8765 947 COGENT-174, US 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4654 309 616 CABLEONE, US 18403 4374 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4261 530 276 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 11859 11275 UNINET, MX 9808 10323 10235 CHINAMOBILE-CN China Mobile Communications Grou 12479 7755 7610 UNI2-AS, ES 7545 6208 5553 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 174 5528 4581 COGENT-174, US 18403 4374 4349 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4654 4038 CABLEONE, US 9498 4261 3985 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 23.136.12.0/24 Origin: 393772 THE-WRAPPER-COMPANY, ZZ 23.136.12.0/24 Transit: 20473 AS-VULTR, US 23.138.40.0/22 Origin: 964 IONSWITCH-NW, US 23.138.40.0/22 Transit: 20055 AS-WHOLESAIL, US 23.138.41.0/24 Origin: 964 IONSWITCH-NW, US 23.138.41.0/24 Transit: 20055 AS-WHOLESAIL, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, 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 /14:1229 /15:2188 /16:14034 /17:8367 /18:13923 /19:24779 /20:44367 /21:52517 /22:113268 /23:105262 /24:615212 /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 6693 7755 UNI2-AS, ES 8151 6032 11859 UNINET, MX 11492 3508 4654 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3416 3619 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2517 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2340 12920 AMAZON-02, US 30036 2206 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3524 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) ---------------------------------------------- 1:2361 2:1526 3:592 4:10 5:4848 6:162 7:6 8:1552 9:1 11:172 12:1375 13:347 14:2510 15:350 16:279 17:363 18:919 20:469 21:4 22:188 23:7352 24:3059 25:2 27:2744 29:19 31:3239 32:44 34:83 35:203 36:2408 37:4656 38:10250 39:899 40:154 41:4478 42:1965 43:2573 44:358 45:19214 46:5055 47:287 49:1997 50:1892 51:590 52:1556 54:301 55:1066 56:9 57:255 58:2195 59:1250 60:1165 61:3011 62:3003 63:1846 64:5523 65:2182 66:4689 67:3037 68:1115 69:3987 70:1113 71:623 72:2930 74:2808 75:1658 76:612 77:2812 78:1868 79:1735 80:2229 81:2040 82:2806 83:1414 84:1818 85:3377 86:1037 87:2422 88:1303 89:4338 90:784 91:8412 92:2797 93:2899 94:3929 95:4269 96:1413 97:317 98:984 99:738 100:71 101:1393 102:4099 103:32457 104:4830 105:1209 106:998 107:2599 108:1210 109:4166 110:2232 111:3330 112:2042 113:1815 114:1946 115:2205 116:2076 117:2757 118:2807 119:1963 120:1881 121:1367 122:2764 123:2320 124:1586 125:2890 126:88 128:1585 129:1034 130:1303 131:1934 132:786 133:450 134:1530 135:374 136:1295 137:1121 138:3052 139:1625 140:1563 141:1482 142:1843 143:1663 144:1063 145:486 146:2158 147:2091 148:2611 149:2958 150:1254 151:2114 152:2120 153:574 154:8116 155:1646 156:3310 157:1921 158:1268 159:2428 160:3620 161:1975 162:3701 163:1923 164:1733 165:2204 166:1397 167:1906 168:4235 169:801 170:5313 171:997 172:4452 173:3247 174:910 175:1281 176:3732 177:5522 178:3869 179:2473 180:2613 181:4165 182:3370 183:2052 184:2303 185:21688 186:5439 187:4778 188:4240 189:4355 190:9834 191:1936 192:11174 193:9455 194:7838 195:5639 196:3574 197:3815 198:6128 199:8386 200:8516 201:6416 202:10507 203:10694 204:4516 205:3630 206:4615 207:3457 208:4197 209:5192 210:4599 211:2524 212:4554 213:3804 214:1054 215:42 216:6636 217:3168 218:1346 219:387 220:2102 221:1057 222:716 223:2321 End of report