IPv4 R&E Routing Table Report 23:05 GMT Sun 31 Dec, 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: 930568 Prefixes after maximum aggregation (per Origin AS): 356242 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 456002 Number of IPv4 prefixes with a valid ROA: 433922 Number of IPv4 prefixes with an invalid ROA: 851 Number of IPv4 prefixes with no ROA: 495795 Total ASes present in the Internet Routing Table: 74973 Prefixes per ASN: 12.41 Origin-only ASes present in the Internet Routing Table: 64586 Origin ASes announcing only one prefix: 26556 Transit ASes present in the Internet Routing Table: 10387 Transit-only ASes present in the Internet Routing Table: 449 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 67 Max AS path prepend of ASN (272886) 61 Prefixes from unregistered ASNs in the Routing Table: 1003 Number of instances of unregistered ASNs: 1005 Number of 32-bit ASNs allocated by the RIRs: 43286 Number of 32-bit ASNs visible in the Routing Table: 35523 Prefixes from 32-bit ASNs in the Routing Table: 178496 Number of bogon 32-bit ASNs visible in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 488 Number of addresses announced to Internet: 3043592960 Equivalent to 181 /8s, 105 /16s and 139 /24s Percentage of available address space announced: 82.2 Percentage of allocated address space announced: 82.2 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: 309961 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 244528 Total APNIC prefixes after maximum aggregation: 71536 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 237641 Unique aggregates announced from the APNIC address blocks: 99425 APNIC Region origin ASes present in the Internet Routing Table: 13750 APNIC Prefixes per ASN: 17.28 APNIC Region origin ASes announcing only one prefix: 4128 APNIC Region transit ASes present in the Internet Routing Table: 1837 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9160 Number of APNIC addresses announced to Internet: 770433536 Equivalent to 45 /8s, 235 /16s and 226 /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: 273009 Total ARIN prefixes after maximum aggregation: 124327 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 277737 Unique aggregates announced from the ARIN address blocks: 133043 ARIN Region origin ASes present in the Internet Routing Table: 19041 ARIN Prefixes per ASN: 14.59 ARIN Region origin ASes announcing only one prefix: 6968 ARIN Region transit ASes present in the Internet Routing Table: 1840 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4824 Number of ARIN addresses announced to Internet: 1273259264 Equivalent to 75 /8s, 228 /16s and 101 /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: 261980 Total RIPE prefixes after maximum aggregation: 125033 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 256555 Unique aggregates announced from the RIPE address blocks: 160914 RIPE Region origin ASes present in the Internet Routing Table: 28486 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12131 RIPE Region transit ASes present in the Internet Routing Table: 3872 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11486 Number of RIPE addresses announced to Internet: 714302720 Equivalent to 42 /8s, 147 /16s and 101 /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: 119789 Total LACNIC prefixes after maximum aggregation: 28622 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 118454 Unique aggregates announced from the LACNIC address blocks: 49421 LACNIC Region origin ASes present in the Internet Routing Table: 11049 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2348 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 67 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8898 Number of LACNIC addresses announced to Internet: 178308096 Equivalent to 10 /8s, 160 /16s and 196 /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: 30259 Total AfriNIC prefixes after maximum aggregation: 6018 AfriNIC Deaggregation factor: 5.03 Prefixes being announced from the AfriNIC address blocks: 39693 Unique aggregates announced from the AfriNIC address blocks: 12797 AfriNIC Region origin ASes present in the Internet Routing Table: 1810 AfriNIC Prefixes per ASN: 21.93 AfriNIC Region origin ASes announcing only one prefix: 646 AfriNIC Region transit ASes present in the Internet Routing Table: 341 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1155 Number of AfriNIC addresses announced to Internet: 107001344 Equivalent to 6 /8s, 96 /16s and 182 /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 9778 8738 50 CHINAMOBILE-CN China Mobile Communicati 7545 5676 784 687 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4542 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3840 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3594 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 3410 494 251 BBIL-AP BHARTI Airtel Ltd., IN 45899 3269 1872 99 VNPT-AS-VN VNPT Corp, VN 24560 2661 857 370 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4755 2188 442 200 TATACOMM-AS TATA Communications formerl 45090 2149 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 9463 11201 3342 AMAZON-02, US 11492 4562 303 686 CABLEONE, US 7155 4164 288 96 VIASAT-SP-BACKBONE, US 6327 3566 1320 69 SHAW, CA 22773 3490 3033 287 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3201 1420 2327 AKAMAI-AS, US 749 3162 54930 2414 DNIC-AS-00749, US 367 2969 3841 1418 DNIC-ASBLK-00306-00371, US 396982 2740 3639 386 GOOGLE-CLOUD-PLATFORM, US 7018 2504 23622 1573 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 7564 1714 146 UNI2-AS, ES 39891 4641 279 54 ALJAWWALSTC-AS, SA 20940 4002 3397 140 AKAMAI-ASN1, NL 9009 3492 300 1631 M247, RO 8551 3327 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2912 2301 912 ROSTELECOM-AS, RU 34984 2326 359 597 TELLCOM-AS, TR 13188 1607 100 26 TRIOLAN, UA 58224 1510 872 576 TCI, IR 44477 1453 95 718 STARK-INDUSTRIES, GB 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 12175 3385 596 UNINET, MX 10620 3519 497 886 Telmex Colombia S.A., CO 13999 2494 339 636 Mega Cable, S.A. de C.V., MX 11830 2007 369 64 Instituto Costarricense de Electricidad 28573 1345 2318 237 Claro NXT Telecomunicacoes Ltda, BR 3816 1307 787 192 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1245 341 503 Axtel, S.A.B. de C.V., MX 11664 1108 178 423 Techtel LMDS Comunicaciones Interactiva 6147 1087 369 22 Telefonica del Peru S.A.A., PE 22884 1074 117 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, 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 1588 389 16 LINKdotNET-AS, EG 24835 1548 545 28 RAYA-AS, EG 36992 1360 1518 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 29571 1071 69 52 ORANGE-COTE-IVOIRE, CI 36935 936 521 43 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 36914 513 82 3 KENET-AS, KE 15399 503 53 42 WANANCHI-, KE 37342 481 32 1 MOVITEL, MZ 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 12175 3385 596 UNINET, MX 9808 9778 8738 50 CHINAMOBILE-CN China Mobile Communicati 16509 9463 11201 3342 AMAZON-02, US 12479 7564 1714 146 UNI2-AS, ES 7545 5676 784 687 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4641 279 54 ALJAWWALSTC-AS, SA 11492 4562 303 686 CABLEONE, US 18403 4542 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4164 288 96 VIASAT-SP-BACKBONE, US 20940 4002 3397 140 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 9778 9728 CHINAMOBILE-CN China Mobile Communications Grou 12479 7564 7418 UNI2-AS, ES 16509 9463 6121 AMAZON-02, US 7545 5676 4989 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4641 4587 ALJAWWALSTC-AS, SA 18403 4542 4517 FPT-AS-AP FPT Telecom Company, VN 7155 4164 4068 VIASAT-SP-BACKBONE, US 11492 4562 3876 CABLEONE, US 20940 4002 3862 AKAMAI-ASN1, NL 7552 3840 3820 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 8.10.69.0/24 174 COGENT-174, 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 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 /10:36 /11:99 /12:298 /13:576 /14:1191 /15:2057 /16:13385 /17:8153 /18:13634 /19:24732 /20:43006 /21:51244 /22:109924 /23:99190 /24:563005 /25:0 /26:0 /27:0 /28:0 /29:1 /30:7 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6652 7564 UNI2-AS, ES 8151 6171 12175 UNINET, MX 11492 3476 4562 CABLEONE, US 6327 3371 3566 SHAW, CA 39891 3324 4641 ALJAWWALSTC-AS, SA 7155 3110 4164 VIASAT-SP-BACKBONE, US 8551 2804 3327 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2554 3490 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2129 2472 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2122 3519 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) ---------------------------------------------- 1:2282 2:1404 3:284 4:5 5:4400 6:163 7:6 8:1494 9:1 11:172 12:1488 13:375 14:2329 15:309 16:206 17:360 18:712 20:344 21:4 22:188 23:6565 24:2594 25:2 27:2517 29:19 31:2539 32:53 34:36 35:117 36:2123 37:4476 38:5826 39:884 40:147 41:4091 42:2195 43:2291 44:324 45:16621 46:4328 47:285 49:1893 50:1878 51:572 52:1593 54:368 55:888 56:5 57:127 58:1856 59:1107 60:1012 61:2585 62:2728 63:1905 64:5499 65:2342 66:4977 67:3034 68:1336 69:4052 70:1170 71:610 72:2913 74:2621 75:1547 76:625 77:2339 78:1824 79:2994 80:2113 81:1870 82:1526 83:1322 84:1608 85:3044 86:791 87:1963 88:1229 89:3959 90:656 91:7900 92:2171 93:2624 94:3579 95:3997 96:1297 97:316 98:1015 99:738 100:94 101:1154 102:2998 103:32308 104:4777 105:600 106:967 107:2760 108:1144 109:4144 110:2125 111:3155 112:2076 113:1711 114:1740 115:2007 116:1953 117:2623 118:2769 119:1941 120:1755 121:1252 122:2631 123:2174 124:1578 125:2772 128:1425 129:898 130:1065 131:1966 132:826 133:411 134:1700 135:304 136:913 137:1032 138:2718 139:1551 140:1337 141:1340 142:1534 143:1526 144:998 145:338 146:2016 147:1631 148:2491 149:2388 150:1014 151:1310 152:1960 153:528 154:5484 155:1364 156:2105 157:1369 158:1079 159:2201 160:2622 161:1611 162:3591 163:1664 164:1613 165:2098 166:1065 167:1740 168:3819 169:791 170:4699 171:974 172:3770 173:3010 174:890 175:1214 176:3583 177:4688 178:3526 179:2230 180:2357 181:3646 182:3410 183:2023 184:2269 185:20475 186:4792 187:4324 188:4020 189:4021 190:9324 191:1489 192:10993 193:8968 194:7348 195:5218 196:3093 197:2581 198:5908 199:6835 200:8007 201:6251 202:10198 203:10050 204:4569 205:3659 206:4374 207:3391 208:4076 209:4910 210:4339 211:2494 212:4192 213:3375 214:1113 215:50 216:6771 217:2773 218:1284 219:414 220:1821 221:1019 222:686 223:2190 End of report