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 05 Feb, 2022 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: 877057 Prefixes after maximum aggregation (per Origin AS): 332262 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 426972 Number of IPv4 prefixes with a valid ROA: 596656 Number of IPv4 prefixes with an invalid ROA: 5006 Number of IPv4 prefixes with no ROA: 1152452 Total ASes present in the Internet Routing Table: 72745 Prefixes per ASN: 12.06 Origin-only ASes present in the Internet Routing Table: 62362 Origin ASes announcing only one prefix: 25694 Transit ASes present in the Internet Routing Table: 10383 Transit-only ASes present in the Internet Routing Table: 382 Average AS path length visible in the Internet Routing Table: 5.7 Max AS path length visible: 250 Max AS path prepend of ASN ( 21299) 246 Prefixes from unregistered ASNs in the Routing Table: 915 Number of instances of unregistered ASNs: 921 Number of 32-bit ASNs allocated by the RIRs: 38510 Number of 32-bit ASNs visible in the Routing Table: 32039 Prefixes from 32-bit ASNs in the Routing Table: 149490 Number of bogon 32-bit ASNs visible in the Routing Table: 54 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 523 Number of addresses announced to Internet: 3068411136 Equivalent to 182 /8s, 228 /16s and 61 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 295814 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 226180 Total APNIC prefixes after maximum aggregation: 65228 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 221140 Unique aggregates announced from the APNIC address blocks: 93919 APNIC Region origin ASes present in the Internet Routing Table: 12298 APNIC Prefixes per ASN: 17.98 APNIC Region origin ASes announcing only one prefix: 3515 APNIC Region transit ASes present in the Internet Routing Table: 1716 Average APNIC Region AS path length visible: 6.2 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7527 Number of APNIC addresses announced to Internet: 773984768 Equivalent to 46 /8s, 34 /16s and 18 /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: 258073 Total ARIN prefixes after maximum aggregation: 118648 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 258075 Unique aggregates announced from the ARIN address blocks: 123257 ARIN Region origin ASes present in the Internet Routing Table: 18963 ARIN Prefixes per ASN: 13.61 ARIN Region origin ASes announcing only one prefix: 6878 ARIN Region transit ASes present in the Internet Routing Table: 1947 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4321 Number of ARIN addresses announced to Internet: 1295939072 Equivalent to 77 /8s, 62 /16s and 118 /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: 246029 Total RIPE prefixes after maximum aggregation: 115001 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 242359 Unique aggregates announced from the RIPE address blocks: 148901 RIPE Region origin ASes present in the Internet Routing Table: 28177 RIPE Prefixes per ASN: 8.60 RIPE Region origin ASes announcing only one prefix: 12135 RIPE Region transit ASes present in the Internet Routing Table: 3990 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 250 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10635 Number of RIPE addresses announced to Internet: 713330944 Equivalent to 42 /8s, 132 /16s and 145 /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: 114657 Total LACNIC prefixes after maximum aggregation: 27246 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 115370 Unique aggregates announced from the LACNIC address blocks: 48592 LACNIC Region origin ASes present in the Internet Routing Table: 10943 LACNIC Prefixes per ASN: 10.54 LACNIC Region origin ASes announcing only one prefix: 2645 LACNIC Region transit ASes present in the Internet Routing Table: 2205 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: 8629 Number of LACNIC addresses announced to Internet: 176637952 Equivalent to 10 /8s, 135 /16s and 72 /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: 31203 Total AfriNIC prefixes after maximum aggregation: 5454 AfriNIC Deaggregation factor: 5.72 Prefixes being announced from the AfriNIC address blocks: 39590 Unique aggregates announced from the AfriNIC address blocks: 11839 AfriNIC Region origin ASes present in the Internet Routing Table: 1594 AfriNIC Prefixes per ASN: 24.84 AfriNIC Region origin ASes announcing only one prefix: 521 AfriNIC Region transit ASes present in the Internet Routing Table: 309 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 35 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 927 Number of AfriNIC addresses announced to Internet: 108189952 Equivalent to 6 /8s, 114 /16s and 217 /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 9046 8885 43 CHINAMOBILE-CN China Mobile Communicati 7545 5865 788 692 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3606 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3492 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3434 1880 57 VNPT-AS-VN VNPT Corp, VN 9498 2314 475 234 BBIL-AP BHARTI Airtel Ltd., IN 4766 2284 11117 602 KIXS-AS-KR Korea Telecom, KR 45090 2180 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2115 429 198 TATACOMM-AS TATA Communications formerl 24560 2032 854 369 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 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 6222 10151 2659 AMAZON-02, US 11492 4517 299 788 CABLEONE, US 22773 3961 3010 362 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3903 264 30 VIASAT-SP-BACKBONE, US 16625 3659 1889 2564 AKAMAI-AS, US 6327 3365 1318 62 SHAW, CA 749 2887 50780 2143 DNIC-AS-00749, US 30036 2611 374 136 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2520 4961 426 CENTURYLINK-US-LEGACY-QWEST, US 20115 2249 3035 508 CHARTER-20115, 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 6809 1720 154 UNI2-AS, ES 8551 4004 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3890 3347 206 AKAMAI-ASN1, NL 39891 3274 188 25 ALJAWWALSTC-AS, SA 12389 2928 2274 905 ROSTELECOM-AS, RU 9009 2469 250 1280 M247, GB 34984 2220 357 603 TELLCOM-AS, TR 58224 1790 929 583 TCI, IR 13188 1610 100 27 TRIOLAN, UA 25019 1467 1069 166 SAUDINETSTC-AS, SA 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 10611 3434 566 Uninet S.A. de C.V., MX 10620 3454 518 721 Telmex Colombia S.A., CO 11830 2455 369 62 Instituto Costarricense de Electricidad 13999 1661 284 469 Mega Cable, S.A. de C.V., MX 6503 1442 355 525 Axtel, S.A.B. de C.V., MX 28573 1388 2331 247 CLARO S.A., BR 3816 1248 659 145 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1137 2350 139 TIM SA, BR 6147 1095 369 21 Telefonica del Peru S.A.A., PE 11664 1001 191 448 Techtel LMDS Comunicaciones Interactiva 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 37457 1938 326 60 Telkom-Internet, ZA 24863 1605 393 21 LINKdotNET-AS, EG 24835 1546 515 32 RAYA-AS, EG 36992 1299 1518 262 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 894 63 56 ORANGE-COTE-IVOIRE, CI 36935 735 521 39 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 500 50 28 WANANCHI-, KE 37342 456 32 1 MOVITEL, MZ 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 10611 3434 566 Uninet S.A. de C.V., MX 9808 9046 8885 43 CHINAMOBILE-CN China Mobile Communicati 12479 6809 1720 154 UNI2-AS, ES 16509 6222 10151 2659 AMAZON-02, US 7545 5865 788 692 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4517 299 788 CABLEONE, US 8551 4004 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3961 3010 362 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3903 264 30 VIASAT-SP-BACKBONE, US 20940 3890 3347 206 AKAMAI-ASN1, NL 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 9046 9003 CHINAMOBILE-CN China Mobile Communications Grou 12479 6809 6655 UNI2-AS, ES 7545 5865 5173 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4004 3965 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3903 3873 VIASAT-SP-BACKBONE, US 11492 4517 3729 CABLEONE, US 20940 3890 3684 AKAMAI-ASN1, NL 22773 3961 3599 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3606 3586 VIETEL-AS-AP Viettel Group, VN 16509 6222 3563 AMAZON-02, US 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 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US 17033 UNALLOCATED 8.48.225.0/24 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 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.51.100.0/24 29766 CHSPSC-29766, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.252.160.0/24 Origin: 398968 GROUP-IID-01, US 23.252.160.0/24 Transit: 174 COGENT-174, US 23.252.161.0/24 Origin: 398968 GROUP-IID-01, US 23.252.161.0/24 Transit: 174 COGENT-174, US 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 174 COGENT-174, US 23.252.164.0/24 Origin: 398968 GROUP-IID-01, US 23.252.164.0/24 Transit: 174 COGENT-174, 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 /9:13 /10:39 /11:100 /12:301 /13:590 /14:1203 /15:2069 /16:13578 /17:8341 /18:13853 /19:24914 /20:41889 /21:50742 /22:107252 /23:94104 /24:518053 /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 5767 6809 UNI2-AS, ES 8151 4338 10611 Uninet S.A. de C.V., MX 8551 3469 4004 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3441 4517 CABLEONE, US 6327 3177 3365 SHAW, CA 7155 2993 3903 VIASAT-SP-BACKBONE, US 22773 2956 3961 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2810 3274 ALJAWWALSTC-AS, SA 30036 2266 2611 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 1941 3454 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) ---------------------------------------------- 1:1801 2:1006 3:153 4:9 5:3743 6:103 7:5 8:1540 9:1 11:172 12:1710 13:416 14:2371 15:155 16:38 17:370 18:139 20:169 21:4 22:188 23:5448 24:2327 25:6 27:2589 29:19 31:2406 32:98 34:1 35:55 36:1729 37:3941 38:2512 39:675 40:149 41:4344 42:938 43:2068 44:293 45:16003 46:3854 47:303 49:1622 50:1902 51:106 52:1356 53:1 54:293 55:747 56:8 57:56 58:1612 59:1061 60:954 61:2242 62:2452 63:1941 64:5474 65:2303 66:4900 67:2931 68:1183 69:4162 70:1345 71:672 72:3058 74:2628 75:1516 76:716 77:2123 78:1781 79:3097 80:1949 81:1536 82:1457 83:1198 84:1306 85:2880 86:711 87:1957 88:998 89:3153 90:505 91:7535 92:1879 93:2595 94:3251 95:3568 96:1310 97:345 98:991 99:864 100:75 101:1041 102:2128 103:28071 104:4110 105:2049 106:845 107:2458 108:769 109:4184 110:2037 111:3204 112:1963 113:1436 114:1518 115:1931 116:1855 117:2502 118:2246 119:1809 120:1631 121:976 122:2501 123:2085 124:1547 125:2031 128:1356 129:1256 130:919 131:2097 132:783 133:368 134:1928 135:289 136:859 137:862 138:2463 139:1217 140:879 141:1348 142:1252 143:1439 144:1229 145:344 146:1753 147:1459 148:2227 149:1668 150:849 151:1080 152:1823 153:448 154:3682 155:1331 156:1855 157:1213 158:1007 159:2052 160:2422 161:1296 162:3428 163:1212 164:1709 165:1603 166:612 167:1688 168:3694 169:717 170:4316 171:821 172:3005 173:3048 174:1018 175:1122 176:3514 177:4596 178:3020 179:2026 180:2274 181:2907 182:3189 183:1872 184:2390 185:19281 186:4329 187:3612 188:3822 189:3192 190:8877 191:1324 192:11025 193:8533 194:6958 195:4987 196:3077 197:2702 198:5991 199:6001 200:7553 201:5685 202:10124 203:9988 204:4549 205:3376 206:3825 207:3373 208:4002 209:4610 210:4004 211:2342 212:3923 213:3383 214:1144 215:64 216:6346 217:2721 218:1212 219:437 220:1950 221:986 222:686 223:2142 End of report