IPv4 R&E Routing Table Report 23:05 GMT Sun 19 Nov, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 927762 Prefixes after maximum aggregation (per Origin AS): 354513 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 454503 Number of IPv4 prefixes with a valid ROA: 428805 Number of IPv4 prefixes with an invalid ROA: 1360 Number of IPv4 prefixes with no ROA: 497597 Total ASes present in the Internet Routing Table: 74871 Prefixes per ASN: 12.39 Origin-only ASes present in the Internet Routing Table: 64453 Origin ASes announcing only one prefix: 26468 Transit ASes present in the Internet Routing Table: 10418 Transit-only ASes present in the Internet Routing Table: 458 Paths with bogon ASNs present in the IPv4 Routing Table: 15 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 37 Max AS path prepend of ASN ( 59588) 31 Prefixes from unregistered ASNs in the Routing Table: 1032 Number of instances of unregistered ASNs: 1041 Number of 32-bit ASNs allocated by the RIRs: 43080 Number of 32-bit ASNs visible in the Routing Table: 35347 Prefixes from 32-bit ASNs in the Routing Table: 176793 Number of bogon 32-bit ASNs visible in the Routing Table: 23 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 524 Number of addresses announced to Internet: 3048392448 Equivalent to 181 /8s, 178 /16s and 199 /24s Percentage of available address space announced: 82.3 Percentage of allocated address space announced: 82.3 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: 309595 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 243375 Total APNIC prefixes after maximum aggregation: 70885 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 236591 Unique aggregates announced from the APNIC address blocks: 99133 APNIC Region origin ASes present in the Internet Routing Table: 13692 APNIC Prefixes per ASN: 17.28 APNIC Region origin ASes announcing only one prefix: 4107 APNIC Region transit ASes present in the Internet Routing Table: 1837 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9083 Number of APNIC addresses announced to Internet: 771190016 Equivalent to 45 /8s, 247 /16s and 109 /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: 272086 Total ARIN prefixes after maximum aggregation: 123823 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 276731 Unique aggregates announced from the ARIN address blocks: 132173 ARIN Region origin ASes present in the Internet Routing Table: 19025 ARIN Prefixes per ASN: 14.55 ARIN Region origin ASes announcing only one prefix: 6964 ARIN Region transit ASes present in the Internet Routing Table: 1858 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4815 Number of ARIN addresses announced to Internet: 1276041216 Equivalent to 76 /8s, 14 /16s and 216 /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: 262061 Total RIPE prefixes after maximum aggregation: 124551 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 256623 Unique aggregates announced from the RIPE address blocks: 160667 RIPE Region origin ASes present in the Internet Routing Table: 28462 RIPE Prefixes per ASN: 9.02 RIPE Region origin ASes announcing only one prefix: 12091 RIPE Region transit ASes present in the Internet Routing Table: 3888 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11426 Number of RIPE addresses announced to Internet: 714963712 Equivalent to 42 /8s, 157 /16s and 123 /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: 119178 Total LACNIC prefixes after maximum aggregation: 28539 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 118005 Unique aggregates announced from the LACNIC address blocks: 49332 LACNIC Region origin ASes present in the Internet Routing Table: 11034 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2330 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 33 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8876 Number of LACNIC addresses announced to Internet: 178316288 Equivalent to 10 /8s, 160 /16s and 228 /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: 30030 Total AfriNIC prefixes after maximum aggregation: 6014 AfriNIC Deaggregation factor: 4.99 Prefixes being announced from the AfriNIC address blocks: 39288 Unique aggregates announced from the AfriNIC address blocks: 12766 AfriNIC Region origin ASes present in the Internet Routing Table: 1803 AfriNIC Prefixes per ASN: 21.79 AfriNIC Region origin ASes announcing only one prefix: 628 AfriNIC Region transit ASes present in the Internet Routing Table: 338 Average AfriNIC Region AS path length visible: 5.6 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1147 Number of AfriNIC addresses announced to Internet: 107452928 Equivalent to 6 /8s, 103 /16s and 154 /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 9708 8729 41 CHINAMOBILE-CN China Mobile Communicati 7545 5700 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4293 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3635 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3598 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 3262 494 245 BBIL-AP BHARTI Airtel Ltd., IN 45899 3262 1872 99 VNPT-AS-VN VNPT Corp, VN 24560 2585 852 376 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2281 11268 602 KIXS-AS-KR Korea Telecom, KR 4755 2191 442 200 TATACOMM-AS TATA Communications formerl Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 9274 11133 3313 AMAZON-02, US 11492 4556 302 675 CABLEONE, US 7155 4163 288 95 VIASAT-SP-BACKBONE, US 6327 3555 1320 67 SHAW, CA 22773 3498 3034 289 ASN-CXA-ALL-CCI-22773-RDC, US 749 3159 54932 2411 DNIC-AS-00749, US 16625 3060 1390 2296 AKAMAI-AS, US 367 3023 3868 1420 DNIC-ASBLK-00306-00371, US 396982 2722 3631 374 GOOGLE-CLOUD-PLATFORM, US 7018 2525 23619 1592 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7462 1713 145 UNI2-AS, ES 39891 4570 271 54 ALJAWWALSTC-AS, SA 20940 4015 3397 141 AKAMAI-ASN1, NL 8551 3434 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 9009 3425 297 1587 M247, RO 12389 2913 2297 917 ROSTELECOM-AS, RU 34984 2323 361 590 TELLCOM-AS, TR 58224 1650 910 583 TCI, IR 13188 1607 100 26 TRIOLAN, UA 8452 1528 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12065 3374 608 UNINET, MX 10620 3527 499 871 Telmex Colombia S.A., CO 13999 2445 335 646 Mega Cable, S.A. de C.V., MX 11830 2009 369 64 Instituto Costarricense de Electricidad 28573 1332 2321 242 Claro NXT Telecomunicacoes Ltda, BR 3816 1299 778 190 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1251 342 506 Axtel, S.A.B. de C.V., MX 6147 1101 369 22 Telefonica del Peru S.A.A., PE 11664 1075 173 437 Techtel LMDS Comunicaciones Interactiva 26615 1040 2502 52 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1605 393 19 LINKdotNET-AS, EG 24835 1548 545 28 RAYA-AS, EG 36992 1358 1518 280 ETISALAT-MISR, EG 36903 1248 553 98 MT-MPLS, MA 29571 1045 67 53 ORANGE-COTE-IVOIRE, CI 36935 935 521 43 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 522 54 47 WANANCHI-, KE 37342 492 32 1 MOVITEL, MZ 24757 480 73 5 EthioNet-AS, ET Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12065 3374 608 UNINET, MX 9808 9708 8729 41 CHINAMOBILE-CN China Mobile Communicati 16509 9274 11133 3313 AMAZON-02, US 12479 7462 1713 145 UNI2-AS, ES 7545 5700 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 271 54 ALJAWWALSTC-AS, SA 11492 4556 302 675 CABLEONE, US 18403 4293 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4163 288 95 VIASAT-SP-BACKBONE, US 20940 4015 3397 141 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9708 9667 CHINAMOBILE-CN China Mobile Communications Grou 12479 7462 7317 UNI2-AS, ES 16509 9274 5961 AMAZON-02, US 7545 5700 5004 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 4516 ALJAWWALSTC-AS, SA 18403 4293 4268 FPT-AS-AP FPT Telecom Company, VN 7155 4163 4068 VIASAT-SP-BACKBONE, US 11492 4556 3881 CABLEONE, US 20940 4015 3874 AKAMAI-ASN1, NL 7552 3635 3615 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/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 17054 EXPEDIENT, 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 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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/Singapore/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 /10:37 /11:99 /12:299 /13:578 /14:1194 /15:2056 /16:13408 /17:8214 /18:13664 /19:24787 /20:43142 /21:51099 /22:109923 /23:99002 /24:560220 /25:0 /26:2 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6551 7462 UNI2-AS, ES 8151 6077 12065 UNINET, MX 11492 3469 4556 CABLEONE, US 6327 3364 3555 SHAW, CA 39891 3324 4570 ALJAWWALSTC-AS, SA 7155 3112 4163 VIASAT-SP-BACKBONE, US 8551 2911 3434 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2564 3498 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2132 2476 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2120 3527 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2231 2:1425 3:275 4:5 5:4386 6:162 7:6 8:1504 9:1 11:172 12:1493 13:366 14:2317 15:304 16:205 17:362 18:673 20:318 21:4 22:188 23:6471 24:2555 25:2 27:2579 29:19 31:2564 32:55 34:33 35:115 36:2025 37:4443 38:5612 39:877 40:149 41:3982 42:2073 43:2293 44:331 45:16651 46:4345 47:373 49:1865 50:1880 51:573 52:1591 54:392 55:885 56:5 57:126 58:1824 59:1113 60:1010 61:2587 62:2710 63:1895 64:5497 65:2353 66:4964 67:3060 68:1346 69:4124 70:1181 71:606 72:2922 74:2626 75:1563 76:624 77:2345 78:1829 79:3025 80:2138 81:1844 82:1513 83:1304 84:1595 85:2971 86:781 87:1950 88:1230 89:3950 90:628 91:7871 92:2142 93:2650 94:3564 95:3998 96:1297 97:315 98:1080 99:737 100:96 101:1388 102:2942 103:32358 104:4745 105:590 106:976 107:2779 108:1131 109:4192 110:2128 111:3128 112:2068 113:1666 114:1714 115:1996 116:1912 117:2557 118:2724 119:1951 120:1767 121:1193 122:2611 123:2182 124:1580 125:2633 128:1427 129:904 130:1050 131:1970 132:813 133:407 134:1715 135:298 136:920 137:983 138:2697 139:1559 140:1327 141:1329 142:1524 143:1521 144:1003 145:340 146:1968 147:1628 148:2462 149:2337 150:1010 151:1252 152:1830 153:523 154:5327 155:1384 156:2079 157:1351 158:1058 159:2200 160:2611 161:1599 162:3556 163:1612 164:1642 165:1855 166:1069 167:1747 168:3817 169:785 170:4643 171:971 172:3759 173:2985 174:952 175:1191 176:3611 177:4526 178:3524 179:2181 180:2264 181:3593 182:3377 183:2006 184:2272 185:20592 186:4747 187:4237 188:4049 189:3947 190:9346 191:1469 192:10987 193:8966 194:7363 195:5262 196:3126 197:2469 198:5921 199:6508 200:8002 201:6223 202:10240 203:10024 204:4543 205:3671 206:4351 207:3403 208:4086 209:4884 210:4234 211:2478 212:4278 213:3398 214:1116 215:71 216:6716 217:2767 218:1291 219:413 220:1798 221:1002 222:687 223:2181 End of report