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 18:35 GMT Sat 18 Feb, 2023 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: 935136 Prefixes after maximum aggregation (per Origin AS): 348296 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 445608 Number of IPv4 prefixes with a valid ROA: 391681 Number of IPv4 prefixes with an invalid ROA: 1240 Number of IPv4 prefixes with no ROA: 542215 Total ASes present in the Internet Routing Table: 74138 Prefixes per ASN: 12.61 Origin-only ASes present in the Internet Routing Table: 63843 Origin ASes announcing only one prefix: 25627 Transit ASes present in the Internet Routing Table: 10295 Transit-only ASes present in the Internet Routing Table: 443 Paths with bogon ASNs present in the IPv4 Routing Table: 135 Average AS path length visible in the Internet Routing Table: 7.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1115 Number of instances of unregistered ASNs: 1127 Number of 32-bit ASNs allocated by the RIRs: 41215 Number of 32-bit ASNs visible in the Routing Table: 34184 Prefixes from 32-bit ASNs in the Routing Table: 174173 Number of bogon 32-bit ASNs visible in the Routing Table: 49 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 627 Number of addresses announced to Internet: 3063111936 Equivalent to 182 /8s, 147 /16s and 97 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 322619 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236795 Total APNIC prefixes after maximum aggregation: 68423 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 231720 Unique aggregates announced from the APNIC address blocks: 97605 APNIC Region origin ASes present in the Internet Routing Table: 13266 APNIC Prefixes per ASN: 17.47 APNIC Region origin ASes announcing only one prefix: 3844 APNIC Region transit ASes present in the Internet Routing Table: 1775 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 30 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8572 Number of APNIC addresses announced to Internet: 773159168 Equivalent to 46 /8s, 21 /16s and 121 /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, 131072-151865 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: 269278 Total ARIN prefixes after maximum aggregation: 121734 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 271530 Unique aggregates announced from the ARIN address blocks: 130221 ARIN Region origin ASes present in the Internet Routing Table: 19074 ARIN Prefixes per ASN: 14.24 ARIN Region origin ASes announcing only one prefix: 6972 ARIN Region transit ASes present in the Internet Routing Table: 1909 Average ARIN Region AS path length visible: 7.2 Max ARIN Region AS path length visible: 40 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4742 Number of ARIN addresses announced to Internet: 1286225664 Equivalent to 76 /8s, 170 /16s and 63 /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: 268252 Total RIPE prefixes after maximum aggregation: 123203 RIPE Deaggregation factor: 2.18 Prefixes being announced from the RIPE address blocks: 264559 Unique aggregates announced from the RIPE address blocks: 156393 RIPE Region origin ASes present in the Internet Routing Table: 28252 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 11991 RIPE Region transit ASes present in the Internet Routing Table: 3836 Average RIPE Region AS path length visible: 7.4 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11029 Number of RIPE addresses announced to Internet: 718599936 Equivalent to 42 /8s, 212 /16s and 247 /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 196608-213403 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: 127694 Total LACNIC prefixes after maximum aggregation: 28338 LACNIC Deaggregation factor: 4.51 Prefixes being announced from the LACNIC address blocks: 126812 Unique aggregates announced from the LACNIC address blocks: 48878 LACNIC Region origin ASes present in the Internet Routing Table: 10959 LACNIC Prefixes per ASN: 11.57 LACNIC Region origin ASes announcing only one prefix: 2264 LACNIC Region transit ASes present in the Internet Routing Table: 2257 Average LACNIC Region AS path length visible: 8.1 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8769 Number of LACNIC addresses announced to Internet: 176407552 Equivalent to 10 /8s, 131 /16s and 196 /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: 32002 Total AfriNIC prefixes after maximum aggregation: 5814 AfriNIC Deaggregation factor: 5.50 Prefixes being announced from the AfriNIC address blocks: 39888 Unique aggregates announced from the AfriNIC address blocks: 12049 AfriNIC Region origin ASes present in the Internet Routing Table: 1730 AfriNIC Prefixes per ASN: 23.06 AfriNIC Region origin ASes announcing only one prefix: 556 AfriNIC Region transit ASes present in the Internet Routing Table: 335 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1072 Number of AfriNIC addresses announced to Internet: 108366336 Equivalent to 6 /8s, 117 /16s and 138 /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 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5836 788 707 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3663 1331 21 VIETEL-AS-AP Viettel Group, VN 45899 3465 1872 94 VNPT-AS-VN VNPT Corp, VN 7713 3409 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 2781 499 240 BBIL-AP BHARTI Airtel Ltd., IN 24560 2356 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2298 11250 586 KIXS-AS-KR Korea Telecom, KR 45090 2152 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2138 439 208 TATACOMM-AS TATA Communications formerl 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 7948 10728 2869 AMAZON-02, US 11492 4535 300 597 CABLEONE, US 7155 3952 279 45 VIASAT-SP-BACKBONE, US 22773 3652 3048 286 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3336 1685 2429 AKAMAI-AS, US 749 3036 50571 2303 DNIC-AS-00749, US 396982 2605 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2604 24143 1582 ATT-INTERNET4, US 30036 2555 366 365 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 7076 1706 146 UNI2-AS, ES 9121 5702 1692 17 TTNET, TR 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4052 3399 171 AKAMAI-ASN1, NL 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2292 911 ROSTELECOM-AS, RU 47331 2730 419 2054 TTNET, TR 9009 2672 254 1386 M247, RO 6849 2273 339 19 UKRTELNET, UA 34984 2265 359 609 TELLCOM-AS, TR 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 11070 3347 587 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2255 374 604 Mega Cable, S.A. de C.V., MX 28573 1346 2328 260 Claro NXT Telecomunicacoes Ltda, BR 6503 1297 339 517 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 370 22 Telefonica del Peru S.A.A., PE 11664 1096 179 458 Techtel LMDS Comunicaciones Interactiva 26615 1019 2498 45 TIM 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 1542 533 30 RAYA-AS, EG 24863 1492 393 19 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1000 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 37457 838 325 49 Telkom-Internet, ZA 6713 550 1861 34 IAM-AS, MA 15399 514 53 40 WANANCHI-, KE 36914 509 82 3 KENET-AS, KE 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 8151 11070 3347 587 Uninet S.A. de C.V., MX 9808 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7948 10728 2869 AMAZON-02, US 12479 7076 1706 146 UNI2-AS, ES 7545 5836 788 707 TPG-INTERNET-AP TPG Telecom Limited, AU 9121 5702 1692 17 TTNET, TR 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4535 300 597 CABLEONE, US 20940 4052 3399 171 AKAMAI-ASN1, NL 7155 3952 279 45 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9444 9396 CHINAMOBILE-CN China Mobile Communications Grou 12479 7076 6930 UNI2-AS, ES 9121 5702 5685 TTNET, TR 7545 5836 5129 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7948 5079 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4535 3938 CABLEONE, US 7155 3952 3907 VIASAT-SP-BACKBONE, US 20940 4052 3881 AKAMAI-ASN1, NL 8551 3894 3857 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 65000 PRIVATE 5.227.24.0/22 8580 SANDY MTS Nizhniy Novgorod, 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 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 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:300 /13:579 /14:1211 /15:2100 /16:13551 /17:8334 /18:14018 /19:25230 /20:43867 /21:52961 /22:111038 /23:101488 /24:560289 /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 6136 7076 UNI2-AS, ES 8151 5112 11070 Uninet S.A. de C.V., MX 9121 4927 5702 TTNET, TR 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3451 4535 CABLEONE, US 8551 3366 3894 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3952 VIASAT-SP-BACKBONE, US 22773 2704 3652 ASN-CXA-ALL-CCI-22773-RDC, US 47331 2321 2730 TTNET, TR Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1655 2:1226 3:168 4:7 5:4425 6:115 7:5 8:1555 9:1 11:172 12:1586 13:382 14:2335 15:293 16:103 17:365 18:396 20:253 21:4 22:188 23:6078 24:2564 25:4 27:2602 29:19 31:2529 32:112 34:9 35:106 36:1912 37:4658 38:4246 39:840 40:153 41:4485 42:1058 43:2340 44:306 45:17553 46:4261 47:381 49:1740 50:1844 51:384 52:1578 54:396 55:870 56:8 57:96 58:1741 59:1114 60:984 61:2506 62:2714 63:1941 64:5691 65:2335 66:5005 67:3077 68:1379 69:4182 70:1264 71:668 72:3063 74:2619 75:1466 76:597 77:2511 78:3889 79:3175 80:2097 81:1893 82:1503 83:1256 84:1519 85:3739 86:754 87:2064 88:2832 89:3664 90:611 91:7763 92:2018 93:2606 94:3589 95:4867 96:1335 97:346 98:1165 99:744 100:75 101:1299 102:2938 103:31057 104:4605 105:900 106:828 107:2527 108:925 109:4416 110:2075 111:3262 112:2038 113:1517 114:1619 115:2089 116:1888 117:2560 118:2296 119:1958 120:1739 121:1060 122:2616 123:2180 124:1557 125:2339 128:1352 129:1136 130:1013 131:2161 132:852 133:411 134:1908 135:337 136:863 137:945 138:2858 139:1544 140:1182 141:1477 142:1427 143:1553 144:1214 145:350 146:1904 147:1571 148:2291 149:1913 150:882 151:1145 152:1965 153:564 154:3996 155:1421 156:1692 157:1307 158:1005 159:2261 160:2633 161:1457 162:3583 163:1551 164:1619 165:1719 166:850 167:1741 168:4130 169:949 170:4979 171:883 172:3518 173:3005 174:1032 175:1186 176:3785 177:5940 178:3603 179:2535 180:2382 181:3467 182:3250 183:1915 184:2343 185:20207 186:5088 187:4520 188:4253 189:3931 190:9247 191:1871 192:10971 193:8853 194:7304 195:5199 196:3168 197:2794 198:5953 199:6126 200:8007 201:6110 202:10441 203:10179 204:4611 205:3499 206:3886 207:3439 208:4100 209:4834 210:4255 211:2402 212:4158 213:3580 214:1085 215:55 216:6651 217:2738 218:1272 219:406 220:1761 221:975 222:666 223:2124 End of report