IPv4 R&E Routing Table Report 23:05 GMT Sun 11 Jan, 2026 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: 1022578 Prefixes after maximum aggregation (per Origin AS): 394344 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 506022 Number of IPv4 prefixes with a valid ROA: 609024 Number of IPv4 prefixes with an invalid ROA: 671 Number of IPv4 prefixes with no ROA: 412883 Total ASes present in the Internet Routing Table: 77647 Prefixes per ASN: 13.17 Origin-only ASes present in the Internet Routing Table: 66563 Origin ASes announcing only one prefix: 27098 Transit ASes present in the Internet Routing Table: 11084 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 209 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1060 Number of instances of unregistered ASNs: 1089 Number of 32-bit ASNs allocated by the RIRs: 48351 Number of 32-bit ASNs visible in the Routing Table: 39576 Prefixes from 32-bit ASNs in the Routing Table: 220365 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 546 Number of addresses announced to Internet: 3104030720 Equivalent to 185 /8s, 3 /16s and 192 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 333295 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 278837 Total APNIC prefixes after maximum aggregation: 81325 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 265550 Unique aggregates announced from the APNIC address blocks: 106730 APNIC Region origin ASes present in the Internet Routing Table: 14950 APNIC Prefixes per ASN: 17.76 APNIC Region origin ASes announcing only one prefix: 4523 APNIC Region transit ASes present in the Internet Routing Table: 2008 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10536 Number of APNIC addresses announced to Internet: 753286144 Equivalent to 44 /8s, 230 /16s and 60 /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, 131072-155961 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: 299100 Total ARIN prefixes after maximum aggregation: 134752 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 299206 Unique aggregates announced from the ARIN address blocks: 145739 ARIN Region origin ASes present in the Internet Routing Table: 19356 ARIN Prefixes per ASN: 15.46 ARIN Region origin ASes announcing only one prefix: 7070 ARIN Region transit ASes present in the Internet Routing Table: 1916 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 27 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5439 Number of ARIN addresses announced to Internet: 1343769600 Equivalent to 80 /8s, 24 /16s and 76 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 281723 Total RIPE prefixes after maximum aggregation: 139798 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 282916 Unique aggregates announced from the RIPE address blocks: 183793 RIPE Region origin ASes present in the Internet Routing Table: 29108 RIPE Prefixes per ASN: 9.72 RIPE Region origin ASes announcing only one prefix: 12089 RIPE Region transit ASes present in the Internet Routing Table: 4038 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 209 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12898 Number of RIPE addresses announced to Internet: 732942592 Equivalent to 43 /8s, 175 /16s and 209 /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, 53/8, 57/8, 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: 125498 Total LACNIC prefixes after maximum aggregation: 30850 LACNIC Deaggregation factor: 4.07 Prefixes being announced from the LACNIC address blocks: 121298 Unique aggregates announced from the LACNIC address blocks: 49752 LACNIC Region origin ASes present in the Internet Routing Table: 11333 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2540 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9335 Number of LACNIC addresses announced to Internet: 170545920 Equivalent to 10 /8s, 42 /16s and 83 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36360 Total AfriNIC prefixes after maximum aggregation: 6911 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53062 Unique aggregates announced from the AfriNIC address blocks: 19537 AfriNIC Region origin ASes present in the Internet Routing Table: 2002 AfriNIC Prefixes per ASN: 26.50 AfriNIC Region origin ASes announcing only one prefix: 737 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1368 Number of AfriNIC addresses announced to Internet: 103181056 Equivalent to 6 /8s, 38 /16s and 107 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 13405 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6028 833 574 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4671 543 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4335 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4049 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3410 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3327 1868 98 VNPT-AS-VN VNPT Corp, VN 17561 3158 198 619 LCS-AS-AP LARUS Limited, HK 24560 2953 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14140 38628 5433 AMAZON-02, US 22773 4775 3099 365 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4634 308 1032 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3696 1321 70 SHAW, CA 396982 3326 4868 494 GOOGLE-CLOUD-PLATFORM, US 174 3177 8769 853 COGENT-174, US 749 3143 54729 2394 DNIC-AS-00749, US 16625 2834 1216 2125 AKAMAI-AS, US 36352 2705 222 888 AS-COLOCROSSING, 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 7266 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3920 366 2244 M247, RO 20940 3830 3393 110 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2573 183 1870 CDNEXT, GB 34984 2423 371 575 TELLCOM-AS, TR 8452 1711 1852 14 TE-AS TE-AS, EG 203020 1620 243 799 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12709 3309 592 UNINET, MX 10620 3433 457 1107 Telmex Colombia S.A., CO 13999 2485 507 353 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1257 371 22 Telefonica del Peru S.A.A., PE 22884 1055 66 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, 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 24835 1982 638 33 RAYA-AS, EG 36992 1849 1534 341 ETISALAT-MISR, EG 24863 1266 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1125 524 47 Vodafone-, EG 37069 1101 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 560 48 172 Africa-on-Cloud-AS, ZA 36914 551 82 3 KENET-AS, KE 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 16509 14140 38628 5433 AMAZON-02, US 9808 13405 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12709 3309 592 UNINET, MX 12479 7266 1711 149 UNI2-AS, ES 7545 6028 833 574 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4775 3099 365 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4671 543 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4634 308 1032 CABLEONE, US 18403 4335 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13405 13285 CHINAMOBILE-CN China Mobile Communications Grou 8151 12709 12117 UNINET, MX 12479 7266 7117 UNI2-AS, ES 7545 6028 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4775 4410 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4671 4334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4335 4311 FPT-AS-AP FPT Telecom Company, VN 7552 4049 4020 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 VIASAT-SP-BACKBONE, US 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 174 COGENT-174, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174, US 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 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 /10:40 /11:93 /12:302 /13:578 /14:1197 /15:2090 /16:13645 /17:8168 /18:13427 /19:24698 /20:44669 /21:51862 /22:112951 /23:105596 /24:643232 /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 8151 6883 12709 UNINET, MX 12479 6197 7266 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4634 CABLEONE, US 6327 3478 3696 SHAW, CA 22773 3046 4775 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2497 14140 AMAZON-02, US 30036 2306 2647 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3433 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) ---------------------------------------------- 1:2482 2:1500 3:990 4:9 5:4992 6:187 7:6 8:1508 9:15 11:172 12:1234 13:612 14:2635 15:418 16:275 17:387 18:917 20:594 21:4 22:188 23:8110 24:2622 25:2 27:2808 29:19 31:3395 32:31 34:84 35:288 36:4621 37:4488 38:9929 39:1237 40:437 41:4489 42:1913 43:2976 44:411 45:19687 46:4981 47:395 49:2167 50:2052 51:598 52:1254 54:233 55:1113 56:11 57:309 58:2318 59:1347 60:1171 61:3126 62:3098 63:1766 64:6118 65:2140 66:5992 67:3255 68:1500 69:4205 70:1030 71:616 72:3075 74:2965 75:1516 76:600 77:2769 78:1912 79:1784 80:2290 81:2082 82:3968 83:1473 84:2026 85:3669 86:1100 87:2190 88:1354 89:4624 90:826 91:8415 92:2837 93:3010 94:4235 95:4523 96:1437 97:311 98:955 99:789 100:69 101:1579 102:4343 103:32924 104:5461 105:773 106:907 107:2814 108:1210 109:4222 110:2306 111:4020 112:2965 113:1972 114:2161 115:2264 116:2166 117:3257 118:2984 119:2110 120:2432 121:1507 122:2953 123:2279 124:1654 125:2973 126:125 128:1572 129:955 130:1538 131:2257 132:763 133:461 134:1629 135:539 136:1610 137:1220 138:2982 139:1601 140:1775 141:1562 142:2442 143:2104 144:1417 145:631 146:2188 147:2159 148:2784 149:2908 150:1326 151:2566 152:2248 153:848 154:9625 155:2313 156:4585 157:2247 158:1488 159:2734 160:3661 161:1988 162:3987 163:2319 164:1969 165:2660 166:1297 167:2196 168:3904 169:809 170:5420 171:1116 172:4558 173:3423 174:894 175:1356 176:3754 177:4697 178:4228 179:2300 180:3114 181:4336 182:3880 183:2700 184:2021 185:21677 186:5503 187:4785 188:4614 189:4476 190:9652 191:1510 192:11426 193:9501 194:7828 195:5672 196:3247 197:3281 198:6067 199:6101 200:8003 201:6386 202:10577 203:10584 204:4656 205:3691 206:4353 207:3819 208:4351 209:5446 210:4729 211:2685 212:4915 213:4031 214:1061 215:54 216:7134 217:3452 218:1616 219:414 220:2191 221:1303 222:875 223:3270 End of report