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 09 Sep, 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: 943402 Prefixes after maximum aggregation (per Origin AS): 351990 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 452194 Number of IPv4 prefixes with a valid ROA: 430160 Number of IPv4 prefixes with an invalid ROA: 1571 Number of IPv4 prefixes with no ROA: 511671 Total ASes present in the Internet Routing Table: 74750 Prefixes per ASN: 12.62 Origin-only ASes present in the Internet Routing Table: 64464 Origin ASes announcing only one prefix: 25880 Transit ASes present in the Internet Routing Table: 10286 Transit-only ASes present in the Internet Routing Table: 448 Paths with bogon ASNs present in the IPv4 Routing Table: 102 Average AS path length visible in the Internet Routing Table: 7.8 Max AS path length visible: 131 Max AS path prepend of ASN ( 37447) 129 Prefixes from unregistered ASNs in the Routing Table: 1082 Number of instances of unregistered ASNs: 1084 Number of 32-bit ASNs allocated by the RIRs: 42579 Number of 32-bit ASNs visible in the Routing Table: 35046 Prefixes from 32-bit ASNs in the Routing Table: 179809 Number of bogon 32-bit ASNs visible in the Routing Table: 34 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 609 Number of addresses announced to Internet: 3055333376 Equivalent to 182 /8s, 28 /16s and 176 /24s Percentage of available address space announced: 82.5 Percentage of allocated address space announced: 82.5 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: 318347 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 243482 Total APNIC prefixes after maximum aggregation: 69891 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 237121 Unique aggregates announced from the APNIC address blocks: 98445 APNIC Region origin ASes present in the Internet Routing Table: 13582 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 4026 APNIC Region transit ASes present in the Internet Routing Table: 1792 Average APNIC Region AS path length visible: 8.0 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8934 Number of APNIC addresses announced to Internet: 772239360 Equivalent to 46 /8s, 7 /16s and 112 /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, 131072-153913 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: 276293 Total ARIN prefixes after maximum aggregation: 123727 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 279457 Unique aggregates announced from the ARIN address blocks: 131492 ARIN Region origin ASes present in the Internet Routing Table: 19082 ARIN Prefixes per ASN: 14.65 ARIN Region origin ASes announcing only one prefix: 6947 ARIN Region transit ASes present in the Internet Routing Table: 1887 Average ARIN Region AS path length visible: 7.6 Max ARIN Region AS path length visible: 29 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4824 Number of ARIN addresses announced to Internet: 1279622656 Equivalent to 76 /8s, 69 /16s and 126 /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: 264028 Total RIPE prefixes after maximum aggregation: 123147 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 259801 Unique aggregates announced from the RIPE address blocks: 159916 RIPE Region origin ASes present in the Internet Routing Table: 28411 RIPE Prefixes per ASN: 9.14 RIPE Region origin ASes announcing only one prefix: 12004 RIPE Region transit ASes present in the Internet Routing Table: 3797 Average RIPE Region AS path length visible: 7.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11323 Number of RIPE addresses announced to Internet: 716761856 Equivalent to 42 /8s, 184 /16s and 235 /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, 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: 126388 Total LACNIC prefixes after maximum aggregation: 28520 LACNIC Deaggregation factor: 4.43 Prefixes being announced from the LACNIC address blocks: 125292 Unique aggregates announced from the LACNIC address blocks: 49202 LACNIC Region origin ASes present in the Internet Routing Table: 11029 LACNIC Prefixes per ASN: 11.36 LACNIC Region origin ASes announcing only one prefix: 2325 LACNIC Region transit ASes present in the Internet Routing Table: 2318 Average LACNIC Region AS path length visible: 8.6 Max LACNIC Region AS path length visible: 59 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8838 Number of LACNIC addresses announced to Internet: 178534144 Equivalent to 10 /8s, 164 /16s and 55 /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: 32129 Total AfriNIC prefixes after maximum aggregation: 5968 AfriNIC Deaggregation factor: 5.38 Prefixes being announced from the AfriNIC address blocks: 41122 Unique aggregates announced from the AfriNIC address blocks: 12627 AfriNIC Region origin ASes present in the Internet Routing Table: 1785 AfriNIC Prefixes per ASN: 23.04 AfriNIC Region origin ASes announcing only one prefix: 578 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 131 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1127 Number of AfriNIC addresses announced to Internet: 107712512 Equivalent to 6 /8s, 107 /16s and 144 /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 9484 8729 41 CHINAMOBILE-CN China Mobile Communicati 7545 5725 784 688 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4349 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3732 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3570 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3415 1840 98 VNPT-AS-VN VNPT Corp, VN 9498 3152 498 253 BBIL-AP BHARTI Airtel Ltd., IN 24560 2498 848 389 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2290 11269 604 KIXS-AS-KR Korea Telecom, KR 4755 2151 442 200 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 9041 10986 3255 AMAZON-02, US 11492 4512 299 673 CABLEONE, US 7155 4178 288 100 VIASAT-SP-BACKBONE, US 174 3826 6654 609 COGENT-174, US 22773 3554 3056 313 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3536 1319 66 SHAW, CA 749 3152 54959 2404 DNIC-AS-00749, US 16625 2971 1422 2255 AKAMAI-AS, US 367 2962 3825 1391 DNIC-ASBLK-00306-00371, US 396982 2690 3596 387 GOOGLE-CLOUD-PLATFORM, 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 7361 1713 145 UNI2-AS, ES 39891 4897 290 61 ALJAWWALSTC-AS, SA 20940 4042 3398 151 AKAMAI-ASN1, NL 8551 3455 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2907 2298 916 ROSTELECOM-AS, RU 9009 2731 254 1392 M247, RO 34984 2329 362 597 TELLCOM-AS, TR 58224 1751 933 515 TCI, IR 13188 1607 100 26 TRIOLAN, UA 61317 1505 101 1173 ASDETUK www.heficed.com, US 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 11771 3366 603 UNINET, MX 10620 3538 506 849 Telmex Colombia S.A., CO 13999 2406 343 626 Mega Cable, S.A. de C.V., MX 11830 2002 369 64 Instituto Costarricense de Electricidad 28573 1324 2324 232 Claro NXT Telecomunicacoes Ltda, BR 6503 1301 344 509 Axtel, S.A.B. de C.V., MX 3816 1294 764 196 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1126 183 426 Techtel LMDS Comunicaciones Interactiva 6147 1112 370 22 Telefonica del Peru S.A.A., PE 28202 1112 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 24863 1593 393 19 LINKdotNET-AS, EG 24835 1457 497 26 RAYA-AS, EG 36992 1357 1518 281 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1045 67 45 ORANGE-COTE-IVOIRE, CI 37457 811 319 45 Telkom-Internet, ZA 36935 780 520 36 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 533 54 45 WANANCHI-, KE 36914 522 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 11771 3366 603 UNINET, MX 9808 9484 8729 41 CHINAMOBILE-CN China Mobile Communicati 16509 9041 10986 3255 AMAZON-02, US 12479 7361 1713 145 UNI2-AS, ES 7545 5725 784 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 290 61 ALJAWWALSTC-AS, SA 11492 4512 299 673 CABLEONE, US 18403 4349 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4178 288 100 VIASAT-SP-BACKBONE, US 20940 4042 3398 151 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 9484 9443 CHINAMOBILE-CN China Mobile Communications Grou 12479 7361 7216 UNI2-AS, ES 16509 9041 5786 AMAZON-02, US 7545 5725 5037 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 4836 ALJAWWALSTC-AS, SA 18403 4349 4324 FPT-AS-AP FPT Telecom Company, VN 7155 4178 4078 VIASAT-SP-BACKBONE, US 20940 4042 3891 AKAMAI-ASN1, NL 11492 4512 3839 CABLEONE, US 7552 3732 3712 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 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US 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 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 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 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.176.160.0/24 Origin: 397327 RESERVED, ZZ 23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US 23.178.240.0/24 Origin: 399517 RESERVED, ZZ 23.178.240.0/24 Transit: 32425 SKB3-ARIN-BGP, US 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 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 /9:14 /10:38 /11:102 /12:297 /13:576 /14:1206 /15:2128 /16:13583 /17:8330 /18:14036 /19:25215 /20:44219 /21:52174 /22:111225 /23:102785 /24:567458 /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 6447 7361 UNI2-AS, ES 8151 5803 11771 UNINET, MX 39891 3632 4897 ALJAWWALSTC-AS, SA 11492 3424 4512 CABLEONE, US 6327 3346 3536 SHAW, CA 7155 3124 4178 VIASAT-SP-BACKBONE, US 8551 2923 3455 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2601 3554 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2149 2489 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2101 3538 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) ---------------------------------------------- 1:2221 2:1392 3:257 4:5 5:4640 6:136 7:6 8:1531 9:1 11:172 12:1513 13:374 14:2312 15:304 16:196 17:370 18:638 20:289 21:4 22:188 23:6373 24:2891 25:6 27:2634 29:19 31:2554 32:84 34:25 35:116 36:1991 37:4548 38:6250 39:871 40:146 41:4505 42:2098 43:2306 44:322 45:17154 46:4343 47:378 49:1807 50:1906 51:596 52:1599 54:395 55:963 56:8 57:131 58:1867 59:1117 60:1002 61:2597 62:2776 63:1922 64:5804 65:2358 66:5016 67:3062 68:1357 69:4173 70:1358 71:668 72:3030 74:2626 75:1598 76:618 77:2445 78:1851 79:2992 80:2135 81:1867 82:1475 83:1307 84:1541 85:3045 86:766 87:2091 88:1222 89:3889 90:620 91:7932 92:2064 93:2635 94:3562 95:4031 96:1292 97:321 98:1101 99:735 100:90 101:1315 102:3213 103:32096 104:4616 105:710 106:886 107:2677 108:1132 109:4249 110:2128 111:3137 112:2064 113:1760 114:1668 115:2058 116:1925 117:2495 118:2701 119:1980 120:1776 121:1114 122:2612 123:2169 124:1573 125:2513 128:1492 129:994 130:1069 131:2050 132:867 133:408 134:1795 135:349 136:914 137:985 138:2804 139:1555 140:1166 141:1298 142:1515 143:1527 144:990 145:346 146:1958 147:1620 148:2465 149:2322 150:885 151:1231 152:1993 153:593 154:5153 155:1389 156:1963 157:1334 158:1086 159:2248 160:2661 161:1591 162:3555 163:1610 164:1745 165:1890 166:1061 167:1734 168:3902 169:923 170:4875 171:892 172:3705 173:2969 174:985 175:1204 176:3821 177:5318 178:3558 179:2392 180:2452 181:3559 182:3318 183:1985 184:2277 185:20741 186:4981 187:4533 188:4273 189:4086 190:9305 191:1817 192:10964 193:8984 194:7334 195:5288 196:3282 197:2790 198:5975 199:6120 200:8085 201:6124 202:10414 203:10147 204:4571 205:3690 206:4401 207:3480 208:4168 209:4947 210:4283 211:2453 212:4275 213:3444 214:1089 215:58 216:6760 217:2876 218:1282 219:410 220:1793 221:980 222:670 223:2146 End of report