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 Mar, 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: 929676 Prefixes after maximum aggregation (per Origin AS): 346593 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 446178 Number of IPv4 prefixes with a valid ROA: 388604 Number of IPv4 prefixes with an invalid ROA: 1360 Number of IPv4 prefixes with no ROA: 539712 Total ASes present in the Internet Routing Table: 74264 Prefixes per ASN: 12.52 Origin-only ASes present in the Internet Routing Table: 63651 Origin ASes announcing only one prefix: 25684 Transit ASes present in the Internet Routing Table: 10613 Transit-only ASes present in the Internet Routing Table: 459 Paths with bogon ASNs present in the IPv4 Routing Table: 167 Average AS path length visible in the Internet Routing Table: 5.7 Max AS path length visible: 164 Max AS path prepend of ASN ( 51156) 160 Prefixes from unregistered ASNs in the Routing Table: 1166 Number of instances of unregistered ASNs: 1187 Number of 32-bit ASNs allocated by the RIRs: 41472 Number of 32-bit ASNs visible in the Routing Table: 34348 Prefixes from 32-bit ASNs in the Routing Table: 174881 Number of bogon 32-bit ASNs visible in the Routing Table: 124 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 521 Number of addresses announced to Internet: 3063836928 Equivalent to 182 /8s, 158 /16s and 113 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 316262 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 237486 Total APNIC prefixes after maximum aggregation: 68346 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 232030 Unique aggregates announced from the APNIC address blocks: 97586 APNIC Region origin ASes present in the Internet Routing Table: 13322 APNIC Prefixes per ASN: 17.42 APNIC Region origin ASes announcing only one prefix: 3880 APNIC Region transit ASes present in the Internet Routing Table: 1783 Average APNIC Region AS path length visible: 6.0 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8638 Number of APNIC addresses announced to Internet: 773247488 Equivalent to 46 /8s, 22 /16s and 210 /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: 269915 Total ARIN prefixes after maximum aggregation: 121899 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 272350 Unique aggregates announced from the ARIN address blocks: 130215 ARIN Region origin ASes present in the Internet Routing Table: 19072 ARIN Prefixes per ASN: 14.28 ARIN Region origin ASes announcing only one prefix: 6975 ARIN Region transit ASes present in the Internet Routing Table: 1973 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4755 Number of ARIN addresses announced to Internet: 1286621952 Equivalent to 76 /8s, 176 /16s and 75 /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: 261219 Total RIPE prefixes after maximum aggregation: 121532 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 257397 Unique aggregates announced from the RIPE address blocks: 156986 RIPE Region origin ASes present in the Internet Routing Table: 28300 RIPE Prefixes per ASN: 9.10 RIPE Region origin ASes announcing only one prefix: 11999 RIPE Region transit ASes present in the Internet Routing Table: 3989 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 164 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11103 Number of RIPE addresses announced to Internet: 718496000 Equivalent to 42 /8s, 211 /16s and 97 /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: 127825 Total LACNIC prefixes after maximum aggregation: 28158 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 127055 Unique aggregates announced from the LACNIC address blocks: 48791 LACNIC Region origin ASes present in the Internet Routing Table: 10967 LACNIC Prefixes per ASN: 11.59 LACNIC Region origin ASes announcing only one prefix: 2268 LACNIC Region transit ASes present in the Internet Routing Table: 2323 Average LACNIC Region AS path length visible: 6.4 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8771 Number of LACNIC addresses announced to Internet: 176564736 Equivalent to 10 /8s, 134 /16s and 42 /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: 32065 Total AfriNIC prefixes after maximum aggregation: 5846 AfriNIC Deaggregation factor: 5.48 Prefixes being announced from the AfriNIC address blocks: 40323 Unique aggregates announced from the AfriNIC address blocks: 12185 AfriNIC Region origin ASes present in the Internet Routing Table: 1736 AfriNIC Prefixes per ASN: 23.23 AfriNIC Region origin ASes announcing only one prefix: 562 AfriNIC Region transit ASes present in the Internet Routing Table: 328 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1081 Number of AfriNIC addresses announced to Internet: 108518656 Equivalent to 6 /8s, 119 /16s and 221 /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 9462 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5759 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3687 1331 21 VIETEL-AS-AP Viettel Group, VN 45899 3448 1872 94 VNPT-AS-VN VNPT Corp, VN 7713 3408 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 2857 499 240 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 45090 2166 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2144 439 209 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 8104 10766 2856 AMAZON-02, US 11492 4528 300 621 CABLEONE, US 7155 3967 279 45 VIASAT-SP-BACKBONE, US 22773 3648 3049 298 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3506 1320 64 SHAW, CA 16625 3185 1602 2349 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US 7018 2559 24119 1566 ATT-INTERNET4, US 30036 2507 361 485 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 7067 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4065 3399 170 AKAMAI-ASN1, NL 8551 3886 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2895 2292 912 ROSTELECOM-AS, RU 9009 2649 251 1389 M247, RO 34984 2268 359 610 TELLCOM-AS, TR 6849 2169 339 19 UKRTELNET, UA 58224 1848 949 545 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11169 3340 582 Uninet S.A. de C.V., MX 10620 3474 504 880 Telmex Colombia S.A., CO 13999 2292 373 608 Mega Cable, S.A. de C.V., MX 11830 2263 369 64 Instituto Costarricense de Electricidad 28573 1369 2324 245 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 460 Techtel LMDS Comunicaciones Interactiva 26615 1029 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 24863 1569 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1016 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 37457 838 325 49 Telkom-Internet, ZA 6713 550 1861 34 IAM-AS, MA 15399 516 53 41 WANANCHI-, KE 36914 506 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 11169 3340 582 Uninet S.A. de C.V., MX 9808 9462 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8104 10766 2856 AMAZON-02, US 12479 7067 1705 149 UNI2-AS, ES 7545 5759 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4528 300 621 CABLEONE, US 20940 4065 3399 170 AKAMAI-ASN1, NL 7155 3967 279 45 VIASAT-SP-BACKBONE, US 8551 3886 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9462 9414 CHINAMOBILE-CN China Mobile Communications Grou 12479 7067 6918 UNI2-AS, ES 16509 8104 5248 AMAZON-02, US 7545 5759 5068 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3967 3922 VIASAT-SP-BACKBONE, US 11492 4528 3907 CABLEONE, US 20940 4065 3895 AKAMAI-ASN1, NL 8551 3886 3849 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3687 3666 VIETEL-AS-AP Viettel Group, VN 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, 64512 PRIVATE 8.10.33.0/24 14127 ILAND, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, 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 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 /12:299 /13:577 /14:1209 /15:2102 /16:13552 /17:8315 /18:13999 /19:25235 /20:43787 /21:52210 /22:110186 /23:100785 /24:557250 /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 6125 7067 UNI2-AS, ES 8151 5137 11169 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3436 4528 CABLEONE, US 8551 3358 3886 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3314 3506 SHAW, CA 7155 3042 3967 VIASAT-SP-BACKBONE, US 22773 2697 3648 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2164 2507 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2028 3474 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) ---------------------------------------------- 1:1671 2:1218 3:170 4:7 5:4524 6:118 7:6 8:1559 9:1 11:172 12:1576 13:395 14:2315 15:296 16:111 17:367 18:401 20:253 21:4 22:188 23:6128 24:2566 25:6 27:2574 29:19 31:2540 32:108 34:10 35:106 36:1914 37:4656 38:4450 39:808 40:150 41:4473 42:955 43:2345 44:315 45:17568 46:4289 47:377 49:1743 50:1840 51:571 52:1588 54:389 55:868 56:8 57:99 58:1750 59:1085 60:971 61:2474 62:2716 63:1941 64:5679 65:2331 66:5021 67:3057 68:1376 69:4158 70:1268 71:672 72:3050 74:2617 75:1472 76:603 77:2530 78:1913 79:3165 80:2086 81:1766 82:1501 83:1241 84:1521 85:3031 86:746 87:2052 88:1281 89:3651 90:614 91:7761 92:2023 93:2582 94:3621 95:3983 96:1329 97:331 98:1169 99:748 100:77 101:1302 102:2961 103:31262 104:4625 105:895 106:879 107:2555 108:973 109:4408 110:2062 111:3201 112:2062 113:1520 114:1633 115:2082 116:1907 117:2560 118:2281 119:1981 120:1738 121:1062 122:2614 123:2176 124:1571 125:2414 128:1331 129:1138 130:1025 131:2174 132:849 133:422 134:1901 135:344 136:869 137:948 138:2851 139:1522 140:1208 141:1483 142:1441 143:1567 144:1165 145:357 146:1932 147:1575 148:2226 149:1968 150:880 151:1151 152:1967 153:571 154:4347 155:1420 156:1699 157:1286 158:1047 159:2265 160:2620 161:1477 162:3575 163:1551 164:1634 165:1738 166:851 167:1726 168:4125 169:958 170:4948 171:887 172:3520 173:2945 174:1021 175:1185 176:3731 177:5964 178:3650 179:2567 180:2410 181:3474 182:3315 183:1914 184:2349 185:20315 186:5114 187:4560 188:4195 189:3997 190:9222 191:1937 192:10998 193:8851 194:7310 195:5211 196:3278 197:2756 198:5962 199:6126 200:8134 201:6126 202:10543 203:10316 204:4625 205:3556 206:3996 207:3450 208:4105 209:4882 210:4237 211:2386 212:4134 213:3558 214:1096 215:58 216:6654 217:2755 218:1282 219:413 220:1755 221:976 222:676 223:2139 End of report