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 25 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: 929993 Prefixes after maximum aggregation (per Origin AS): 346661 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 445940 Number of IPv4 prefixes with a valid ROA: 386711 Number of IPv4 prefixes with an invalid ROA: 1300 Number of IPv4 prefixes with no ROA: 541982 Total ASes present in the Internet Routing Table: 74209 Prefixes per ASN: 12.53 Origin-only ASes present in the Internet Routing Table: 63781 Origin ASes announcing only one prefix: 25675 Transit ASes present in the Internet Routing Table: 10428 Transit-only ASes present in the Internet Routing Table: 448 Paths with bogon ASNs present in the IPv4 Routing Table: 134 Average AS path length visible in the Internet Routing Table: 7.1 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1079 Number of instances of unregistered ASNs: 1089 Number of 32-bit ASNs allocated by the RIRs: 41293 Number of 32-bit ASNs visible in the Routing Table: 34264 Prefixes from 32-bit ASNs in the Routing Table: 174707 Number of bogon 32-bit ASNs visible in the Routing Table: 45 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 590 Number of addresses announced to Internet: 3064160768 Equivalent to 182 /8s, 163 /16s and 98 /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: 316967 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 237508 Total APNIC prefixes after maximum aggregation: 68403 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 232162 Unique aggregates announced from the APNIC address blocks: 97674 APNIC Region origin ASes present in the Internet Routing Table: 13295 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 3862 APNIC Region transit ASes present in the Internet Routing Table: 1787 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 30 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8600 Number of APNIC addresses announced to Internet: 773292032 Equivalent to 46 /8s, 23 /16s and 128 /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: 270659 Total ARIN prefixes after maximum aggregation: 122038 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 272887 Unique aggregates announced from the ARIN address blocks: 130325 ARIN Region origin ASes present in the Internet Routing Table: 19074 ARIN Prefixes per ASN: 14.31 ARIN Region origin ASes announcing only one prefix: 6973 ARIN Region transit ASes present in the Internet Routing Table: 1910 Average ARIN Region AS path length visible: 6.9 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4747 Number of ARIN addresses announced to Internet: 1287053824 Equivalent to 76 /8s, 182 /16s and 226 /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: 260748 Total RIPE prefixes after maximum aggregation: 121309 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 257038 Unique aggregates announced from the RIPE address blocks: 156500 RIPE Region origin ASes present in the Internet Routing Table: 28278 RIPE Prefixes per ASN: 9.09 RIPE Region origin ASes announcing only one prefix: 11997 RIPE Region transit ASes present in the Internet Routing Table: 3907 Average RIPE Region AS path length visible: 6.8 Max RIPE Region AS path length visible: 43 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11060 Number of RIPE addresses announced to Internet: 718521088 Equivalent to 42 /8s, 211 /16s and 195 /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: 127906 Total LACNIC prefixes after maximum aggregation: 28288 LACNIC Deaggregation factor: 4.52 Prefixes being announced from the LACNIC address blocks: 127025 Unique aggregates announced from the LACNIC address blocks: 48793 LACNIC Region origin ASes present in the Internet Routing Table: 10973 LACNIC Prefixes per ASN: 11.58 LACNIC Region origin ASes announcing only one prefix: 2278 LACNIC Region transit ASes present in the Internet Routing Table: 2293 Average LACNIC Region AS path length visible: 7.8 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8774 Number of LACNIC addresses announced to Internet: 176505344 Equivalent to 10 /8s, 133 /16s and 66 /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: 32093 Total AfriNIC prefixes after maximum aggregation: 5849 AfriNIC Deaggregation factor: 5.49 Prefixes being announced from the AfriNIC address blocks: 40291 Unique aggregates announced from the AfriNIC address blocks: 12198 AfriNIC Region origin ASes present in the Internet Routing Table: 1742 AfriNIC Prefixes per ASN: 23.13 AfriNIC Region origin ASes announcing only one prefix: 565 AfriNIC Region transit ASes present in the Internet Routing Table: 337 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: 1083 Number of AfriNIC addresses announced to Internet: 108446464 Equivalent to 6 /8s, 118 /16s and 195 /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 9457 8883 49 CHINAMOBILE-CN China Mobile Communicati 7545 5807 786 692 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3667 1331 21 VIETEL-AS-AP Viettel Group, VN 45899 3460 1872 93 VNPT-AS-VN VNPT Corp, VN 7713 3411 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 2793 499 240 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2299 11250 586 KIXS-AS-KR Korea Telecom, KR 45090 2160 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2140 439 210 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 7999 10733 2859 AMAZON-02, US 11492 4512 299 641 CABLEONE, US 7155 3955 270 43 VIASAT-SP-BACKBONE, US 22773 3648 3047 285 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3312 1661 2428 AKAMAI-AS, US 749 3035 50571 2302 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2590 24139 1582 ATT-INTERNET4, US 30036 2534 363 422 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 7083 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4059 3399 171 AKAMAI-ASN1, NL 8551 3901 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2292 911 ROSTELECOM-AS, RU 9009 2679 254 1392 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2169 339 19 UKRTELNET, UA 58224 1846 949 546 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 11005 3344 591 Uninet S.A. de C.V., MX 10620 3467 504 872 Telmex Colombia S.A., CO 11830 2263 369 65 Instituto Costarricense de Electricidad 13999 2259 370 603 Mega Cable, S.A. de C.V., MX 28573 1338 2323 254 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 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1099 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1025 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 1487 393 19 LINKdotNET-AS, EG 36992 1346 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1002 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 503 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 11005 3344 591 Uninet S.A. de C.V., MX 9808 9457 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 7999 10733 2859 AMAZON-02, US 12479 7083 1706 146 UNI2-AS, ES 7545 5807 786 692 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4512 299 641 CABLEONE, US 20940 4059 3399 171 AKAMAI-ASN1, NL 7155 3955 270 43 VIASAT-SP-BACKBONE, US 8551 3901 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 9457 9408 CHINAMOBILE-CN China Mobile Communications Grou 12479 7083 6937 UNI2-AS, ES 16509 7999 5140 AMAZON-02, US 7545 5807 5115 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3955 3912 VIASAT-SP-BACKBONE, US 20940 4059 3888 AKAMAI-ASN1, NL 11492 4512 3871 CABLEONE, US 8551 3901 3864 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3667 3646 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, 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 7029 WINDSTREAM, 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: 5511 OPENTRANSIT, FR 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 5511 OPENTRANSIT, FR 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 5511 OPENTRANSIT, FR 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 5511 OPENTRANSIT, FR 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 /14:1210 /15:2100 /16:13551 /17:8333 /18:14027 /19:25226 /20:43870 /21:52273 /22:110610 /23:100894 /24:556850 /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 6139 7083 UNI2-AS, ES 8151 5028 11005 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3428 4512 CABLEONE, US 8551 3373 3901 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3032 3955 VIASAT-SP-BACKBONE, US 22773 2698 3648 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2191 2534 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3467 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) ---------------------------------------------- 1:1646 2:1228 3:169 4:7 5:4434 6:116 7:6 8:1555 9:1 11:172 12:1582 13:389 14:2345 15:291 16:111 17:366 18:395 20:253 21:4 22:188 23:6092 24:2915 25:4 27:2600 29:19 31:2550 32:112 34:8 35:106 36:1918 37:4638 38:4301 39:865 40:152 41:4512 42:1058 43:2345 44:310 45:17554 46:4227 47:381 49:1740 50:1850 51:387 52:1583 54:397 55:866 56:8 57:98 58:1741 59:1118 60:981 61:2506 62:2716 63:1949 64:5788 65:2338 66:5046 67:3065 68:1380 69:4174 70:1438 71:669 72:3048 74:2617 75:1487 76:599 77:2511 78:1915 79:3175 80:2083 81:1759 82:1470 83:1249 84:1525 85:3025 86:755 87:2061 88:1280 89:3664 90:614 91:7776 92:2024 93:2600 94:3576 95:3983 96:1335 97:347 98:1167 99:744 100:75 101:1299 102:2981 103:31168 104:4622 105:899 106:832 107:2541 108:926 109:4419 110:2088 111:3282 112:2043 113:1523 114:1628 115:2085 116:1897 117:2563 118:2282 119:1963 120:1745 121:1060 122:2619 123:2178 124:1538 125:2345 128:1346 129:1136 130:1015 131:2172 132:842 133:413 134:1909 135:337 136:863 137:950 138:2859 139:1546 140:1194 141:1475 142:1428 143:1556 144:1213 145:352 146:1920 147:1570 148:2307 149:1931 150:884 151:1149 152:1964 153:570 154:4254 155:1429 156:1688 157:1308 158:1012 159:2259 160:2648 161:1447 162:3581 163:1551 164:1630 165:1721 166:850 167:1740 168:4098 169:952 170:4957 171:883 172:3519 173:2996 174:1036 175:1183 176:3780 177:5963 178:3650 179:2611 180:2389 181:3476 182:3389 183:1915 184:2357 185:20262 186:5095 187:4522 188:4258 189:3979 190:9236 191:1846 192:10980 193:8854 194:7295 195:5200 196:3192 197:2789 198:5966 199:6145 200:8024 201:5983 202:10467 203:10176 204:4628 205:3520 206:3932 207:3466 208:4104 209:4883 210:4257 211:2401 212:4134 213:3586 214:1089 215:55 216:6651 217:2742 218:1281 219:406 220:1762 221:974 222:671 223:2113 End of report