IPv4 R&E Routing Table Report 23:00 GMT Tue 07 Apr, 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: 1036795 Prefixes after maximum aggregation (per Origin AS): 398476 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 512493 Number of IPv4 prefixes with a valid ROA: 627609 Number of IPv4 prefixes with an invalid ROA: 419 Number of IPv4 prefixes with no ROA: 408767 Total ASes present in the Internet Routing Table: 78163 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66975 Origin ASes announcing only one prefix: 27311 Transit ASes present in the Internet Routing Table: 11188 Transit-only ASes present in the Internet Routing Table: 581 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: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1031 Number of instances of unregistered ASNs: 1063 Number of 32-bit ASNs allocated by the RIRs: 49227 Number of 32-bit ASNs visible in the Routing Table: 40255 Prefixes from 32-bit ASNs in the Routing Table: 226965 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 413 Number of addresses announced to Internet: 3107437824 Equivalent to 185 /8s, 55 /16s and 189 /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: 338023 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282896 Total APNIC prefixes after maximum aggregation: 82383 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269813 Unique aggregates announced from the APNIC address blocks: 107515 APNIC Region origin ASes present in the Internet Routing Table: 15113 APNIC Prefixes per ASN: 17.85 APNIC Region origin ASes announcing only one prefix: 4602 APNIC Region transit ASes present in the Internet Routing Table: 2038 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10700 Number of APNIC addresses announced to Internet: 752877056 Equivalent to 44 /8s, 223 /16s and 254 /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: 301979 Total ARIN prefixes after maximum aggregation: 135661 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301505 Unique aggregates announced from the ARIN address blocks: 146677 ARIN Region origin ASes present in the Internet Routing Table: 19399 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1922 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 29 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5538 Number of ARIN addresses announced to Internet: 1348434432 Equivalent to 80 /8s, 95 /16s and 122 /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, 393216-404380 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: 286732 Total RIPE prefixes after maximum aggregation: 142008 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 289046 Unique aggregates announced from the RIPE address blocks: 188326 RIPE Region origin ASes present in the Internet Routing Table: 29346 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12157 RIPE Region transit ASes present in the Internet Routing Table: 4055 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13222 Number of RIPE addresses announced to Internet: 732731392 Equivalent to 43 /8s, 172 /16s and 152 /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: 127277 Total LACNIC prefixes after maximum aggregation: 30767 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122736 Unique aggregates announced from the LACNIC address blocks: 50234 LACNIC Region origin ASes present in the Internet Routing Table: 11384 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2702 LACNIC Region transit ASes present in the Internet Routing Table: 2591 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: 9413 Number of LACNIC addresses announced to Internet: 169841920 Equivalent to 10 /8s, 31 /16s and 149 /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: 36880 Total AfriNIC prefixes after maximum aggregation: 6998 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53282 Unique aggregates announced from the AfriNIC address blocks: 19382 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 26.42 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103292416 Equivalent to 6 /8s, 40 /16s and 30 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13808 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5917 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4891 549 324 BBIL-AP BHARTI Airtel Ltd., IN 18403 4565 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4059 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3660 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3483 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3353 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3008 859 518 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2840 179 537 LCS-AS-AP LARUS Limited, HK 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 14580 41234 5656 AMAZON-02 - Amazon.com, Inc., US 22773 4784 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1032 CABLEONE - CABLE ONE, INC., US 7155 3864 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 77 SHAW - Shaw Communications, CA 396982 3304 4857 493 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3223 8767 823 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2707 222 893 AS-COLOCROSSING - HostPapa, US 30036 2663 364 327 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7162 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 9009 3832 354 2253 M247, RO 20940 3801 3389 110 AKAMAI-ASN1, NL 12389 3141 2318 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2703 195 1986 CDNEXT, GB 34984 2447 364 570 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1637 249 809 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 12806 3286 615 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2461 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 11664 1434 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2393 95 TIM SA, BR 22884 1057 71 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1856 1532 339 ETISALAT-MISR, EG 24863 1296 389 16 LINKdotNET-AS, EG 36935 1241 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 37069 997 1100 11 MOBINIL, EG 20011 589 155 220 NTT-DATA-Inc, ZA 15399 554 57 59 WANANCHI-, KE 36914 547 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 14580 41234 5656 AMAZON-02 - Amazon.com, Inc., US 9808 13808 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12806 3286 615 UNINET, MX 12479 7162 1711 149 UNI2-AS, ES 7545 5917 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4891 549 324 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1032 CABLEONE - CABLE ONE, INC., US 18403 4565 347 26 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 13808 13688 CHINAMOBILE-CN China Mobile Communications Grou 8151 12806 12191 UNINET, MX 12479 7162 7013 UNI2-AS, ES 7545 5917 5418 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4891 4567 BBIL-AP BHARTI Airtel Ltd., IN 18403 4565 4539 FPT-AS-AP FPT Telecom Company, VN 22773 4784 4418 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4059 4030 VIETEL-AS-AP Viettel Group, VN 7155 3864 3779 VIASAT-SP-BACKBONE - ViaSat,Inc., 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 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 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 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /11:95 /12:297 /13:581 /14:1189 /15:2092 /16:13580 /17:8235 /18:13235 /19:25309 /20:45488 /21:52136 /22:113473 /23:106945 /24:654070 /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 7000 12806 UNINET, MX 12479 6104 7162 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3527 4667 CABLEONE - CABLE ONE, INC., US 6327 3504 3724 SHAW - Shaw Communications, CA 22773 3055 4784 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2823 3864 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2628 14580 AMAZON-02 - Amazon.com, Inc., US 30036 2314 2663 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2501 2:1763 3:995 4:5 5:5175 6:196 7:6 8:1488 9:39 11:172 12:1189 13:685 14:2676 15:453 16:170 17:423 18:914 20:583 21:4 22:188 23:8187 24:2779 25:2 27:2815 28:1 29:19 31:3424 32:36 34:90 35:281 36:4657 37:4434 38:10053 39:1278 40:421 41:4539 42:2174 43:3092 44:445 45:19865 46:4875 47:408 48:121 49:2226 50:2012 51:626 52:1298 54:274 55:1125 56:11 57:320 58:2365 59:1386 60:1173 61:3166 62:3116 63:1722 64:6294 65:2134 66:6059 67:3257 68:1497 69:4212 70:1062 71:608 72:3178 74:3017 75:1485 76:584 77:2918 78:1959 79:1790 80:2346 81:2191 82:4029 83:1446 84:2131 85:3794 86:1089 87:2308 88:1347 89:4696 90:781 91:8416 92:2821 93:3010 94:4340 95:4644 96:1452 97:314 98:942 99:809 100:68 101:1623 102:4468 103:33001 104:5344 105:820 106:912 107:2867 108:1231 109:4207 110:2300 111:4114 112:3141 113:1978 114:2264 115:2288 116:2181 117:3504 118:3000 119:2108 120:2689 121:1544 122:2982 123:2269 124:1705 125:3013 126:125 128:1585 129:966 130:1608 131:2470 132:810 133:475 134:1662 135:610 136:1603 137:1343 138:3278 139:1635 140:1758 141:1726 142:2521 143:2144 144:1710 145:643 146:2200 147:2178 148:2765 149:3094 150:1368 151:2785 152:2310 153:1083 154:9544 155:2318 156:4461 157:2286 158:1521 159:2821 160:3837 161:1960 162:4035 163:2481 164:2038 165:2643 166:1273 167:2296 168:3984 169:849 170:5549 171:1124 172:4529 173:3463 174:881 175:1375 176:3867 177:4873 178:4378 179:2290 180:3159 181:4500 182:4014 183:2833 184:2020 185:21788 186:5765 187:4962 188:4610 189:4520 190:9795 191:1570 192:11472 193:9582 194:7858 195:5805 196:3339 197:3353 198:6108 199:6062 200:8098 201:6415 202:10670 203:10645 204:4761 205:3720 206:4492 207:3823 208:4369 209:5406 210:4709 211:2688 212:4998 213:4097 214:1057 215:47 216:7259 217:3558 218:1700 219:424 220:2202 221:1309 222:938 223:3417 End of report