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 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: 992317 Prefixes after maximum aggregation (per Origin AS): 372688 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 474829 Number of IPv4 prefixes with a valid ROA: 542466 Number of IPv4 prefixes with an invalid ROA: 436 Number of IPv4 prefixes with no ROA: 449415 Total ASes present in the Internet Routing Table: 76583 Prefixes per ASN: 12.96 Origin-only ASes present in the Internet Routing Table: 65755 Origin ASes announcing only one prefix: 26500 Transit ASes present in the Internet Routing Table: 10828 Transit-only ASes present in the Internet Routing Table: 528 Paths with bogon ASNs present in the IPv4 Routing Table: 82 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: 1070 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 46137 Number of 32-bit ASNs visible in the Routing Table: 37810 Prefixes from 32-bit ASNs in the Routing Table: 205120 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: 505 Number of addresses announced to Internet: 3111937280 Equivalent to 185 /8s, 124 /16s and 101 /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: 327620 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257246 Total APNIC prefixes after maximum aggregation: 76384 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 248683 Unique aggregates announced from the APNIC address blocks: 102683 APNIC Region origin ASes present in the Internet Routing Table: 14472 APNIC Prefixes per ASN: 17.18 APNIC Region origin ASes announcing only one prefix: 4420 APNIC Region transit ASes present in the Internet Routing Table: 1910 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9982 Number of APNIC addresses announced to Internet: 753354752 Equivalent to 44 /8s, 231 /16s and 72 /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: 289140 Total ARIN prefixes after maximum aggregation: 127420 ARIN Deaggregation factor: 2.27 Prefixes being announced from the ARIN address blocks: 291155 Unique aggregates announced from the ARIN address blocks: 135197 ARIN Region origin ASes present in the Internet Routing Table: 19194 ARIN Prefixes per ASN: 15.17 ARIN Region origin ASes announcing only one prefix: 7025 ARIN Region transit ASes present in the Internet Routing Table: 1956 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: 5141 Number of ARIN addresses announced to Internet: 1343184896 Equivalent to 80 /8s, 15 /16s and 96 /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: 275255 Total RIPE prefixes after maximum aggregation: 132154 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 272169 Unique aggregates announced from the RIPE address blocks: 172268 RIPE Region origin ASes present in the Internet Routing Table: 28885 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12050 RIPE Region transit ASes present in the Internet Routing Table: 3933 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: 12274 Number of RIPE addresses announced to Internet: 732654080 Equivalent to 43 /8s, 171 /16s and 106 /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: 132232 Total LACNIC prefixes after maximum aggregation: 29155 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 129297 Unique aggregates announced from the LACNIC address blocks: 48935 LACNIC Region origin ASes present in the Internet Routing Table: 11209 LACNIC Prefixes per ASN: 11.54 LACNIC Region origin ASes announcing only one prefix: 2345 LACNIC Region transit ASes present in the Internet Routing Table: 2493 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: 9140 Number of LACNIC addresses announced to Internet: 177890560 Equivalent to 10 /8s, 154 /16s and 101 /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: 37374 Total AfriNIC prefixes after maximum aggregation: 6899 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 50508 Unique aggregates announced from the AfriNIC address blocks: 15336 AfriNIC Region origin ASes present in the Internet Routing Table: 1914 AfriNIC Prefixes per ASN: 26.39 AfriNIC Region origin ASes announcing only one prefix: 660 AfriNIC Region transit ASes present in the Internet Routing Table: 374 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: 1273 Number of AfriNIC addresses announced to Internet: 104591872 Equivalent to 6 /8s, 59 /16s and 242 /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 6207 843 660 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4217 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4215 530 273 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3672 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3255 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2833 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2171 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2162 434 189 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 12724 38948 3736 AMAZON-02, US 174 5475 8759 898 COGENT-174, US 11492 4702 312 561 CABLEONE, US 7155 4170 286 83 VIASAT-SP-BACKBONE, US 6327 3620 1320 81 SHAW, CA 22773 3378 3033 186 ASN-CXA-ALL-CCI-22773-RDC, US 749 3260 54879 2507 DNIC-AS-00749, US 16625 3006 1292 2196 AKAMAI-AS, US 396982 2924 3659 447 GOOGLE-CLOUD-PLATFORM, US 30036 2589 360 263 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 7763 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3978 3395 129 AKAMAI-ASN1, NL 9009 3740 322 1922 M247, RO 12389 2991 2303 893 ROSTELECOM-AS, RU 34984 2368 361 580 TELLCOM-AS, TR 212238 2008 145 1485 CDNEXT, GB 8452 1615 1852 14 TE-AS TE-AS, EG 13188 1607 100 26 TRIOLAN, UA 62240 1489 98 749 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 11791 3229 595 UNINET, MX 10620 3543 492 950 Telmex Colombia S.A., CO 13999 2513 539 365 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1349 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1158 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1130 374 163 Axtel, S.A.B. de C.V., MX 6147 1111 371 22 Telefonica del Peru S.A.A., PE 28202 1110 52 9 Rede Brasileira de Comunicacao SA, BR 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 1684 601 30 RAYA-AS, EG 24863 1647 389 16 LINKdotNET-AS, EG 29571 1548 98 101 ORANGE-COTE-IVOIRE, CI 36992 1425 1518 286 ETISALAT-MISR, EG 20011 1288 199 339 INTERNET-SOLUTIONS, ZA 36903 1249 554 96 MT-MPLS, MA 36935 1002 521 42 Vodafone-, EG 37069 843 1083 15 MOBINIL, EG 37457 587 316 32 Telkom-Internet, ZA 6713 555 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 12724 38948 3736 AMAZON-02, US 8151 11791 3229 595 UNINET, MX 9808 10334 8753 87 CHINAMOBILE-CN China Mobile Communication 12479 7763 1714 145 UNI2-AS, ES 7545 6207 843 660 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5475 8759 898 COGENT-174, US 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4702 312 561 CABLEONE, US 18403 4217 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 11791 11196 UNINET, MX 9808 10334 10247 CHINAMOBILE-CN China Mobile Communications Grou 12479 7763 7618 UNI2-AS, ES 7545 6207 5547 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 174 5475 4577 COGENT-174, US 18403 4217 4192 FPT-AS-AP FPT Telecom Company, VN 11492 4702 4141 CABLEONE, US 7155 4170 4087 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 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 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US 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 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 23.134.164.0/24 Origin: 399291 FIBERNETPR-ASN, PR 23.134.164.0/24 Transit: 21559 OSNET, PR 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 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 /11:93 /12:307 /13:586 /14:1229 /15:2184 /16:14011 /17:8348 /18:13877 /19:24736 /20:44418 /21:52737 /22:113402 /23:104788 /24:611527 /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 6720 7763 UNI2-AS, ES 8151 5967 11791 UNINET, MX 11492 3556 4702 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3620 SHAW, CA 7155 3119 4170 VIASAT-SP-BACKBONE, US 22773 2513 3378 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2269 12724 AMAZON-02, US 30036 2249 2589 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2183 3543 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 3:570 4:10 5:4805 6:165 7:6 8:1558 9:1 11:172 12:1380 13:346 14:2505 15:347 16:270 17:358 18:917 20:457 21:4 22:188 23:7330 24:2776 25:2 27:2735 29:19 31:3173 32:46 34:82 35:200 36:2416 37:4629 38:9897 39:896 40:153 41:4460 42:1920 43:2551 44:351 45:19007 46:5014 47:291 49:1982 50:1888 51:589 52:1570 54:300 55:1095 56:9 57:251 58:2231 59:1179 60:1166 61:3004 62:3015 63:1836 64:5530 65:2210 66:4700 67:3064 68:1104 69:4016 70:1114 71:615 72:2922 74:2805 75:1641 76:611 77:2742 78:1862 79:1716 80:2229 81:2047 82:2471 83:1422 84:1799 85:3347 86:1022 87:2414 88:1297 89:4341 90:760 91:8398 92:2815 93:2874 94:3925 95:4218 96:1345 97:308 98:980 99:737 100:71 101:1375 102:4132 103:32363 104:4658 105:1225 106:991 107:2611 108:1201 109:4124 110:2219 111:3372 112:2051 113:1801 114:1946 115:2252 116:2081 117:2741 118:2764 119:1961 120:1875 121:1357 122:2775 123:2290 124:1582 125:2872 126:94 128:1598 129:1027 130:1299 131:1912 132:801 133:450 134:1527 135:371 136:1327 137:1112 138:3073 139:1586 140:1557 141:1489 142:1853 143:1624 144:1050 145:473 146:2155 147:2066 148:2611 149:2922 150:1220 151:1674 152:2125 153:574 154:8104 155:1614 156:3535 157:1881 158:1246 159:2421 160:3618 161:1932 162:3700 163:1824 164:1720 165:2195 166:1358 167:1898 168:4217 169:804 170:5284 171:1002 172:4289 173:3275 174:916 175:1289 176:3654 177:5533 178:3809 179:2421 180:2597 181:4121 182:3370 183:2014 184:2267 185:21669 186:5432 187:4725 188:4239 189:4393 190:9803 191:1954 192:11177 193:9413 194:7807 195:5585 196:3566 197:3781 198:6113 199:8355 200:8473 201:6409 202:10459 203:10694 204:4546 205:3656 206:4634 207:3487 208:4198 209:5168 210:4588 211:2528 212:4553 213:3800 214:1042 215:42 216:6623 217:3172 218:1351 219:388 220:2112 221:1055 222:713 223:2314 End of report