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 16 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: 944865 Prefixes after maximum aggregation (per Origin AS): 352414 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 452790 Number of IPv4 prefixes with a valid ROA: 431767 Number of IPv4 prefixes with an invalid ROA: 1521 Number of IPv4 prefixes with no ROA: 511577 Total ASes present in the Internet Routing Table: 74796 Prefixes per ASN: 12.63 Origin-only ASes present in the Internet Routing Table: 64503 Origin ASes announcing only one prefix: 25913 Transit ASes present in the Internet Routing Table: 10293 Transit-only ASes present in the Internet Routing Table: 452 Paths with bogon ASNs present in the IPv4 Routing Table: 106 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: 1071 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 42627 Number of 32-bit ASNs visible in the Routing Table: 35090 Prefixes from 32-bit ASNs in the Routing Table: 180451 Number of bogon 32-bit ASNs visible in the Routing Table: 38 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 584 Number of addresses announced to Internet: 3054757632 Equivalent to 182 /8s, 19 /16s and 231 /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: 318711 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 243611 Total APNIC prefixes after maximum aggregation: 70086 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 237211 Unique aggregates announced from the APNIC address blocks: 98529 APNIC Region origin ASes present in the Internet Routing Table: 13595 APNIC Prefixes per ASN: 17.45 APNIC Region origin ASes announcing only one prefix: 4042 APNIC Region transit ASes present in the Internet Routing Table: 1801 Average APNIC Region AS path length visible: 7.9 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8956 Number of APNIC addresses announced to Internet: 772283136 Equivalent to 46 /8s, 8 /16s and 27 /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: 276607 Total ARIN prefixes after maximum aggregation: 123707 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 279738 Unique aggregates announced from the ARIN address blocks: 131622 ARIN Region origin ASes present in the Internet Routing Table: 19088 ARIN Prefixes per ASN: 14.66 ARIN Region origin ASes announcing only one prefix: 6944 ARIN Region transit ASes present in the Internet Routing Table: 1874 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: 4822 Number of ARIN addresses announced to Internet: 1278832384 Equivalent to 76 /8s, 57 /16s and 111 /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: 264434 Total RIPE prefixes after maximum aggregation: 123414 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 260077 Unique aggregates announced from the RIPE address blocks: 160229 RIPE Region origin ASes present in the Internet Routing Table: 28422 RIPE Prefixes per ASN: 9.15 RIPE Region origin ASes announcing only one prefix: 12026 RIPE Region transit ASes present in the Internet Routing Table: 3804 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: 11333 Number of RIPE addresses announced to Internet: 717007616 Equivalent to 42 /8s, 188 /16s and 171 /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: 126731 Total LACNIC prefixes after maximum aggregation: 28508 LACNIC Deaggregation factor: 4.45 Prefixes being announced from the LACNIC address blocks: 125578 Unique aggregates announced from the LACNIC address blocks: 49256 LACNIC Region origin ASes present in the Internet Routing Table: 11036 LACNIC Prefixes per ASN: 11.38 LACNIC Region origin ASes announcing only one prefix: 2318 LACNIC Region transit ASes present in the Internet Routing Table: 2316 Average LACNIC Region AS path length visible: 8.5 Max LACNIC Region AS path length visible: 59 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8848 Number of LACNIC addresses announced to Internet: 178446080 Equivalent to 10 /8s, 162 /16s and 223 /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: 32411 Total AfriNIC prefixes after maximum aggregation: 5972 AfriNIC Deaggregation factor: 5.43 Prefixes being announced from the AfriNIC address blocks: 41677 Unique aggregates announced from the AfriNIC address blocks: 12663 AfriNIC Region origin ASes present in the Internet Routing Table: 1791 AfriNIC Prefixes per ASN: 23.27 AfriNIC Region origin ASes announcing only one prefix: 583 AfriNIC Region transit ASes present in the Internet Routing Table: 338 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: 1131 Number of AfriNIC addresses announced to Internet: 107738880 Equivalent to 6 /8s, 107 /16s and 247 /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 9482 8729 41 CHINAMOBILE-CN China Mobile Communicati 7545 5727 785 690 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4268 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3717 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3537 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3406 1824 97 VNPT-AS-VN VNPT Corp, VN 9498 3153 498 253 BBIL-AP BHARTI Airtel Ltd., IN 24560 2514 849 389 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 9076 10995 3228 AMAZON-02, US 11492 4527 300 671 CABLEONE, US 7155 4178 288 100 VIASAT-SP-BACKBONE, US 174 3840 6655 608 COGENT-174, US 22773 3548 3056 305 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3540 1319 66 SHAW, CA 749 3151 54959 2403 DNIC-AS-00749, US 16625 2981 1425 2264 AKAMAI-AS, US 367 2967 3814 1398 DNIC-ASBLK-00306-00371, US 396982 2698 3597 392 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 7391 1713 145 UNI2-AS, ES 39891 4897 290 61 ALJAWWALSTC-AS, SA 20940 4046 3398 151 AKAMAI-ASN1, NL 8551 3449 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2907 2298 916 ROSTELECOM-AS, RU 9009 2735 255 1398 M247, RO 34984 2329 362 597 TELLCOM-AS, TR 58224 1730 921 536 TCI, IR 13188 1607 100 26 TRIOLAN, UA 61317 1492 100 1161 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 11821 3368 601 UNINET, MX 10620 3542 506 851 Telmex Colombia S.A., CO 13999 2396 333 624 Mega Cable, S.A. de C.V., MX 11830 2002 369 64 Instituto Costarricense de Electricidad 28573 1325 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 1122 181 424 Techtel LMDS Comunicaciones Interactiva 6147 1114 370 22 Telefonica del Peru S.A.A., PE 28202 1090 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 1612 393 19 LINKdotNET-AS, EG 24835 1533 549 28 RAYA-AS, EG 36992 1358 1518 279 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1046 67 45 ORANGE-COTE-IVOIRE, CI 36935 920 520 35 Vodafone-, EG 37457 812 319 45 Telkom-Internet, ZA 6713 550 1861 34 IAM-AS, MA 15399 535 54 46 WANANCHI-, KE 36914 519 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 11821 3368 601 UNINET, MX 9808 9482 8729 41 CHINAMOBILE-CN China Mobile Communicati 16509 9076 10995 3228 AMAZON-02, US 12479 7391 1713 145 UNI2-AS, ES 7545 5727 785 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 290 61 ALJAWWALSTC-AS, SA 11492 4527 300 671 CABLEONE, US 18403 4268 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4178 288 100 VIASAT-SP-BACKBONE, US 20940 4046 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 9482 9441 CHINAMOBILE-CN China Mobile Communications Grou 12479 7391 7246 UNI2-AS, ES 16509 9076 5848 AMAZON-02, US 7545 5727 5037 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 4836 ALJAWWALSTC-AS, SA 18403 4268 4243 FPT-AS-AP FPT Telecom Company, VN 7155 4178 4078 VIASAT-SP-BACKBONE, US 20940 4046 3895 AKAMAI-ASN1, NL 11492 4527 3856 CABLEONE, US 7552 3717 3697 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 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 Transit: 174 COGENT-174, US 36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road, 36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin 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 /11:101 /12:297 /13:576 /14:1206 /15:2127 /16:13564 /17:8331 /18:14045 /19:25227 /20:44212 /21:52222 /22:111370 /23:102752 /24:568767 /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 6477 7391 UNI2-AS, ES 8151 5849 11821 UNINET, MX 39891 3632 4897 ALJAWWALSTC-AS, SA 11492 3439 4527 CABLEONE, US 6327 3350 3540 SHAW, CA 7155 3124 4178 VIASAT-SP-BACKBONE, US 8551 2922 3449 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2595 3548 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2158 2500 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2105 3542 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) ---------------------------------------------- 1:2204 2:1426 3:263 4:5 5:4606 6:135 7:6 8:1530 9:1 11:172 12:1517 13:364 14:2316 15:302 16:196 17:367 18:644 20:293 21:4 22:188 23:6364 24:2904 25:2 27:2645 29:19 31:2557 32:83 34:26 35:116 36:1981 37:4548 38:6307 39:872 40:146 41:4526 42:2077 43:2313 44:322 45:17290 46:4338 47:373 49:1829 50:1908 51:597 52:1596 54:396 55:959 56:5 57:131 58:1870 59:1119 60:1003 61:2596 62:2781 63:1924 64:5808 65:2361 66:5030 67:3061 68:1351 69:4182 70:1359 71:670 72:3028 74:2630 75:1594 76:619 77:2417 78:1837 79:2988 80:2135 81:1868 82:1476 83:1309 84:1543 85:3091 86:766 87:2096 88:1223 89:3897 90:623 91:7942 92:2065 93:2631 94:3569 95:4033 96:1292 97:316 98:1100 99:736 100:90 101:1317 102:3242 103:32123 104:4627 105:715 106:891 107:2681 108:1137 109:4258 110:2124 111:3144 112:2069 113:1762 114:1679 115:2065 116:1909 117:2519 118:2692 119:1981 120:1777 121:1134 122:2618 123:2169 124:1572 125:2512 128:1488 129:996 130:1073 131:2057 132:874 133:408 134:1792 135:348 136:912 137:982 138:2810 139:1558 140:1186 141:1315 142:1518 143:1543 144:1004 145:350 146:1961 147:1597 148:2474 149:2322 150:889 151:1232 152:1994 153:593 154:5436 155:1394 156:1953 157:1335 158:1082 159:2249 160:2664 161:1586 162:3549 163:1615 164:1744 165:1894 166:1069 167:1744 168:3919 169:915 170:4892 171:908 172:3715 173:2975 174:986 175:1200 176:3827 177:5344 178:3525 179:2438 180:2477 181:3570 182:3325 183:1976 184:2288 185:20776 186:4987 187:4573 188:4275 189:4127 190:9295 191:1843 192:10965 193:8999 194:7377 195:5299 196:3292 197:2791 198:5961 199:6134 200:8131 201:6149 202:10427 203:10141 204:4573 205:3688 206:4393 207:3486 208:4159 209:4950 210:4297 211:2452 212:4293 213:3449 214:1108 215:58 216:6769 217:2880 218:1283 219:410 220:1795 221:984 222:665 223:2148 End of report