IPv4 R&E Routing Table Report 23:05 GMT Sat 10 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: 1023050 Prefixes after maximum aggregation (per Origin AS): 394528 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 506380 Number of IPv4 prefixes with a valid ROA: 609510 Number of IPv4 prefixes with an invalid ROA: 667 Number of IPv4 prefixes with no ROA: 412873 Total ASes present in the Internet Routing Table: 77659 Prefixes per ASN: 13.17 Origin-only ASes present in the Internet Routing Table: 66586 Origin ASes announcing only one prefix: 27108 Transit ASes present in the Internet Routing Table: 11073 Transit-only ASes present in the Internet Routing Table: 561 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 209 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1061 Number of instances of unregistered ASNs: 1090 Number of 32-bit ASNs allocated by the RIRs: 48334 Number of 32-bit ASNs visible in the Routing Table: 39585 Prefixes from 32-bit ASNs in the Routing Table: 220338 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: 548 Number of addresses announced to Internet: 3104441856 Equivalent to 185 /8s, 10 /16s and 6 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 333563 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 278860 Total APNIC prefixes after maximum aggregation: 81324 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 265571 Unique aggregates announced from the APNIC address blocks: 106755 APNIC Region origin ASes present in the Internet Routing Table: 14949 APNIC Prefixes per ASN: 17.77 APNIC Region origin ASes announcing only one prefix: 4520 APNIC Region transit ASes present in the Internet Routing Table: 2007 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: 10532 Number of APNIC addresses announced to Internet: 753286400 Equivalent to 44 /8s, 230 /16s and 61 /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: 299077 Total ARIN prefixes after maximum aggregation: 134740 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 299197 Unique aggregates announced from the ARIN address blocks: 145741 ARIN Region origin ASes present in the Internet Routing Table: 19354 ARIN Prefixes per ASN: 15.46 ARIN Region origin ASes announcing only one prefix: 7071 ARIN Region transit ASes present in the Internet Routing Table: 1915 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: 1343374592 Equivalent to 80 /8s, 18 /16s and 69 /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: 282289 Total RIPE prefixes after maximum aggregation: 139990 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283504 Unique aggregates announced from the RIPE address blocks: 184136 RIPE Region origin ASes present in the Internet Routing Table: 29121 RIPE Prefixes per ASN: 9.74 RIPE Region origin ASes announcing only one prefix: 12095 RIPE Region transit ASes present in the Internet Routing Table: 4034 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: 12905 Number of RIPE addresses announced to Internet: 733717504 Equivalent to 43 /8s, 187 /16s and 164 /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: 125488 Total LACNIC prefixes after maximum aggregation: 30852 LACNIC Deaggregation factor: 4.07 Prefixes being announced from the LACNIC address blocks: 121280 Unique aggregates announced from the LACNIC address blocks: 49748 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: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2539 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9337 Number of LACNIC addresses announced to Internet: 170532352 Equivalent to 10 /8s, 42 /16s and 30 /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: 36275 Total AfriNIC prefixes after maximum aggregation: 6913 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 52950 Unique aggregates announced from the AfriNIC address blocks: 19527 AfriNIC Region origin ASes present in the Internet Routing Table: 2005 AfriNIC Prefixes per ASN: 26.41 AfriNIC Region origin ASes announcing only one prefix: 740 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1372 Number of AfriNIC addresses announced to Internet: 103192576 Equivalent to 6 /8s, 38 /16s and 152 /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 4331 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4058 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 14154 38628 5436 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 2574 183 1871 CDNEXT, GB 34984 2423 371 575 TELLCOM-AS, TR 8452 1708 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 12702 3309 592 UNINET, MX 10620 3434 457 1108 Telmex Colombia S.A., CO 13999 2485 507 353 Mega Cable, S.A. de C.V., MX 11830 1990 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 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 903 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 1110 524 47 Vodafone-, EG 37069 1100 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 564 82 3 KENET-AS, KE 328608 560 48 172 Africa-on-Cloud-AS, ZA 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 14154 38628 5436 AMAZON-02, US 9808 13405 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12702 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 4331 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 12702 12110 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 4331 4307 FPT-AS-AP FPT Telecom Company, VN 7552 4058 4029 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 /14:1196 /15:2089 /16:13642 /17:8170 /18:13429 /19:24722 /20:44730 /21:51962 /22:113096 /23:105721 /24:643250 /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 6878 12702 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 2502 14154 AMAZON-02, US 30036 2308 2649 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2214 3434 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 2:1497 3:990 4:9 5:5001 6:187 7:6 8:1508 9:15 11:172 12:1234 13:615 14:2636 15:419 16:275 17:389 18:917 20:594 21:4 22:188 23:8108 24:2622 25:2 27:2808 29:19 31:3399 32:31 34:84 35:288 36:4621 37:4488 38:9927 39:1237 40:437 41:4507 42:1912 43:2976 44:409 45:19682 46:4989 47:395 49:2167 50:2052 51:598 52:1257 54:233 55:1113 56:11 57:309 58:2318 59:1347 60:1171 61:3126 62:3098 63:1766 64:6119 65:2140 66:5995 67:3255 68:1500 69:4202 70:1030 71:616 72:3074 74:2964 75:1516 76:600 77:2767 78:1920 79:1783 80:2294 81:2082 82:3977 83:1472 84:2028 85:3674 86:1100 87:2200 88:1357 89:4622 90:826 91:8417 92:2836 93:3014 94:4236 95:4517 96:1435 97:311 98:955 99:789 100:69 101:1579 102:4345 103:32939 104:5459 105:773 106:907 107:2814 108:1211 109:4225 110:2308 111:4020 112:2965 113:1970 114:2161 115:2264 116:2166 117:3257 118:2981 119:2107 120:2432 121:1507 122:2953 123:2278 124:1652 125:2973 126:125 128:1573 129:955 130:1534 131:2257 132:765 133:461 134:1629 135:536 136:1611 137:1221 138:2975 139:1600 140:1773 141:1558 142:2443 143:2104 144:1420 145:631 146:2188 147:2160 148:2792 149:2906 150:1326 151:2590 152:2248 153:848 154:9615 155:2317 156:4583 157:2245 158:1489 159:2734 160:3657 161:1988 162:3987 163:2318 164:1969 165:2659 166:1303 167:2195 168:3905 169:807 170:5412 171:1116 172:4556 173:3425 174:894 175:1357 176:3774 177:4698 178:4235 179:2296 180:3114 181:4333 182:3881 183:2701 184:2021 185:21690 186:5501 187:4782 188:4609 189:4476 190:9645 191:1511 192:11422 193:9501 194:7834 195:5673 196:3256 197:3188 198:6063 199:6103 200:8008 201:6386 202:10578 203:10585 204:4659 205:3688 206:4351 207:3819 208:4349 209:5447 210:4729 211:2685 212:4919 213:4028 214:1056 215:54 216:7138 217:3453 218:1616 219:414 220:2190 221:1303 222:875 223:3270 End of report