IPv4 R&E Routing Table Report 23:00 GMT Tue 03 Feb, 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: 1028357 Prefixes after maximum aggregation (per Origin AS): 395451 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508013 Number of IPv4 prefixes with a valid ROA: 615474 Number of IPv4 prefixes with an invalid ROA: 585 Number of IPv4 prefixes with no ROA: 412298 Total ASes present in the Internet Routing Table: 77767 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66642 Origin ASes announcing only one prefix: 27164 Transit ASes present in the Internet Routing Table: 11125 Transit-only ASes present in the Internet Routing Table: 569 Paths with bogon ASNs present in the IPv4 Routing Table: 42 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: 1058 Number of instances of unregistered ASNs: 1087 Number of 32-bit ASNs allocated by the RIRs: 48558 Number of 32-bit ASNs visible in the Routing Table: 39727 Prefixes from 32-bit ASNs in the Routing Table: 221968 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 453 Number of addresses announced to Internet: 3102607872 Equivalent to 184 /8s, 238 /16s and 10 /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: 334903 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280506 Total APNIC prefixes after maximum aggregation: 81860 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267014 Unique aggregates announced from the APNIC address blocks: 107116 APNIC Region origin ASes present in the Internet Routing Table: 14999 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 4550 APNIC Region transit ASes present in the Internet Routing Table: 2013 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: 10579 Number of APNIC addresses announced to Internet: 751773952 Equivalent to 44 /8s, 207 /16s and 41 /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: 301245 Total ARIN prefixes after maximum aggregation: 135383 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 300900 Unique aggregates announced from the ARIN address blocks: 146338 ARIN Region origin ASes present in the Internet Routing Table: 19359 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7080 ARIN Region transit ASes present in the Internet Routing Table: 1918 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5454 Number of ARIN addresses announced to Internet: 1342929664 Equivalent to 80 /8s, 11 /16s and 123 /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: 282935 Total RIPE prefixes after maximum aggregation: 140071 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285101 Unique aggregates announced from the RIPE address blocks: 185305 RIPE Region origin ASes present in the Internet Routing Table: 29163 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12108 RIPE Region transit ASes present in the Internet Routing Table: 4061 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: 12964 Number of RIPE addresses announced to Internet: 733511680 Equivalent to 43 /8s, 184 /16s and 128 /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: 125964 Total LACNIC prefixes after maximum aggregation: 30526 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121813 Unique aggregates announced from the LACNIC address blocks: 49506 LACNIC Region origin ASes present in the Internet Routing Table: 11343 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2550 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: 9348 Number of LACNIC addresses announced to Internet: 170914304 Equivalent to 10 /8s, 47 /16s and 242 /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: 36649 Total AfriNIC prefixes after maximum aggregation: 6924 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 53076 Unique aggregates announced from the AfriNIC address blocks: 19377 AfriNIC Region origin ASes present in the Internet Routing Table: 2018 AfriNIC Prefixes per ASN: 26.30 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103211264 Equivalent to 6 /8s, 38 /16s and 225 /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 13628 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6011 832 562 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4730 544 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4120 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4047 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3724 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3424 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3326 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2967 865 495 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2766 173 530 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 14115 38818 5507 AMAZON-02 - Amazon.com, Inc., US 22773 4775 3098 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 174 3686 8767 849 COGENT-174 - Cogent Communications, LLC, 396982 3322 4866 496 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54728 2394 DNIC-AS-00749 - United States Department 16625 2790 1198 2121 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2697 221 888 AS-COLOCROSSING - HostPapa, 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 7242 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3898 364 2228 M247, RO 20940 3823 3393 112 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2565 182 1864 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1721 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1588 241 768 HOSTROYALE, IN 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 12698 3298 607 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2484 506 350 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 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 2486 57 TIM SA, BR 18881 915 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 1983 646 33 RAYA-AS, EG 36992 1844 1532 338 ETISALAT-MISR, EG 24863 1282 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1128 521 44 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 328608 583 48 168 Africa-on-Cloud-AS, ZA 20011 580 154 212 NTT-DATA-Inc, ZA 36914 566 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 14115 38818 5507 AMAZON-02 - Amazon.com, Inc., US 9808 13628 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12698 3298 607 UNINET, MX 12479 7242 1711 149 UNI2-AS, ES 7545 6011 832 562 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4775 3098 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4730 544 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4120 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 13628 13508 CHINAMOBILE-CN China Mobile Communications Grou 8151 12698 12091 UNINET, MX 12479 7242 7093 UNI2-AS, ES 7545 6011 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4775 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4730 4393 BBIL-AP BHARTI Airtel Ltd., IN 18403 4120 4096 FPT-AS-AP FPT Telecom Company, VN 7552 4047 4018 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 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 /11:92 /12:302 /13:578 /14:1194 /15:2082 /16:13643 /17:8191 /18:13429 /19:24767 /20:45074 /21:52085 /22:113221 /23:106086 /24:647543 /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 6868 12698 UNINET, MX 12479 6170 7242 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4637 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3049 4775 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2510 14115 AMAZON-02 - Amazon.com, Inc., US 30036 2310 2655 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 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) ---------------------------------------------- 1:2486 2:1531 3:986 4:9 5:5095 6:185 7:6 8:1495 9:16 11:172 12:1224 13:623 14:2639 15:419 16:182 17:393 18:916 20:597 21:4 22:188 23:8124 24:2626 25:2 27:2819 29:19 31:3439 32:31 34:84 35:291 36:4641 37:4505 38:10395 39:1261 40:440 41:4535 42:1886 43:2999 44:416 45:19736 46:4928 47:401 48:38 49:2185 50:2056 51:598 52:1258 54:241 55:1116 56:11 57:311 58:2342 59:1352 60:1172 61:3139 62:3090 63:1761 64:6193 65:2107 66:6016 67:3252 68:1485 69:4204 70:1053 71:615 72:3092 74:2966 75:1508 76:591 77:2760 78:1925 79:1803 80:2313 81:2176 82:3983 83:1465 84:2022 85:3804 86:1104 87:2252 88:1340 89:4658 90:824 91:8392 92:2857 93:3006 94:4295 95:4549 96:1449 97:312 98:946 99:781 100:69 101:1594 102:4406 103:32945 104:5462 105:791 106:918 107:2841 108:1221 109:4194 110:2311 111:4083 112:3140 113:1974 114:2171 115:2249 116:2193 117:3377 118:2888 119:2093 120:2668 121:1509 122:2958 123:2323 124:1662 125:2987 126:125 128:1655 129:931 130:1567 131:2346 132:773 133:461 134:1620 135:560 136:1634 137:1354 138:2967 139:1613 140:1765 141:1567 142:2473 143:2194 144:1637 145:626 146:2198 147:2274 148:2777 149:2962 150:1330 151:2684 152:2283 153:869 154:9490 155:2305 156:4509 157:2251 158:1507 159:2756 160:3731 161:1997 162:4045 163:2347 164:2021 165:2644 166:1283 167:2225 168:3943 169:907 170:5492 171:1116 172:4563 173:3438 174:892 175:1361 176:3778 177:4716 178:4309 179:2283 180:3106 181:4397 182:3921 183:2819 184:2016 185:21669 186:5558 187:4860 188:4617 189:4485 190:9726 191:1528 192:11454 193:9495 194:7823 195:5640 196:3255 197:3340 198:6081 199:6103 200:8047 201:6395 202:10581 203:10601 204:4706 205:3705 206:4385 207:3814 208:4355 209:5403 210:4731 211:2691 212:4950 213:4046 214:1072 215:54 216:7134 217:3468 218:1669 219:421 220:2198 221:1310 222:927 223:3294 End of report