IPv4 R&E Routing Table Report 23:00 GMT Tue 24 Mar, 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: 1034714 Prefixes after maximum aggregation (per Origin AS): 397463 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511078 Number of IPv4 prefixes with a valid ROA: 624760 Number of IPv4 prefixes with an invalid ROA: 438 Number of IPv4 prefixes with no ROA: 409516 Total ASes present in the Internet Routing Table: 78100 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66908 Origin ASes announcing only one prefix: 27274 Transit ASes present in the Internet Routing Table: 11192 Transit-only ASes present in the Internet Routing Table: 582 Paths with bogon ASNs present in the IPv4 Routing Table: 41 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1079 Number of instances of unregistered ASNs: 1111 Number of 32-bit ASNs allocated by the RIRs: 49061 Number of 32-bit ASNs visible in the Routing Table: 40154 Prefixes from 32-bit ASNs in the Routing Table: 225847 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 393 Number of addresses announced to Internet: 3106769152 Equivalent to 185 /8s, 45 /16s and 137 /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: 337261 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281959 Total APNIC prefixes after maximum aggregation: 82103 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268976 Unique aggregates announced from the APNIC address blocks: 107148 APNIC Region origin ASes present in the Internet Routing Table: 15109 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 4604 APNIC Region transit ASes present in the Internet Routing Table: 2043 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: 10683 Number of APNIC addresses announced to Internet: 751819776 Equivalent to 44 /8s, 207 /16s and 220 /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: 302264 Total ARIN prefixes after maximum aggregation: 135610 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301661 Unique aggregates announced from the ARIN address blocks: 146366 ARIN Region origin ASes present in the Internet Routing Table: 19394 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7101 ARIN Region transit ASes present in the Internet Routing Table: 1927 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: 5528 Number of ARIN addresses announced to Internet: 1348877568 Equivalent to 80 /8s, 102 /16s and 61 /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: 285986 Total RIPE prefixes after maximum aggregation: 141408 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 288074 Unique aggregates announced from the RIPE address blocks: 187513 RIPE Region origin ASes present in the Internet Routing Table: 29320 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12148 RIPE Region transit ASes present in the Internet Routing Table: 4074 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13183 Number of RIPE addresses announced to Internet: 732247552 Equivalent to 43 /8s, 165 /16s and 54 /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: 126516 Total LACNIC prefixes after maximum aggregation: 30684 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 122273 Unique aggregates announced from the LACNIC address blocks: 50245 LACNIC Region origin ASes present in the Internet Routing Table: 11364 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2691 LACNIC Region transit ASes present in the Internet Routing Table: 2567 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: 9386 Number of LACNIC addresses announced to Internet: 170242304 Equivalent to 10 /8s, 37 /16s and 177 /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: 36910 Total AfriNIC prefixes after maximum aggregation: 6961 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53337 Unique aggregates announced from the AfriNIC address blocks: 19463 AfriNIC Region origin ASes present in the Internet Routing Table: 2008 AfriNIC Prefixes per ASN: 26.56 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1374 Number of AfriNIC addresses announced to Internet: 103325696 Equivalent to 6 /8s, 40 /16s and 160 /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 13765 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5957 829 511 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4851 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4563 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4046 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3478 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3335 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3004 861 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2808 177 542 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 14504 41221 5586 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4652 309 1024 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3713 1321 75 SHAW - Shaw Communications, CA 396982 3293 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3224 8763 834 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2705 222 886 AS-COLOCROSSING - HostPapa, US 16625 2684 1173 2089 AKAMAI-AS - Akamai Technologies, Inc., 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 7208 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3837 356 2251 M247, RO 20940 3819 3389 110 AKAMAI-ASN1, NL 12389 3149 2319 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2681 194 1965 CDNEXT, GB 34984 2462 366 570 TELLCOM-AS, TR 8452 1709 1852 14 TE-AS TE-AS, EG 203020 1630 247 806 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 12824 3301 596 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2460 506 344 Mega Cable, S.A. de C.V., MX 11830 1953 369 65 Instituto Costarricense de Electricidad y 11664 1451 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1372 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 977 2474 93 TIM SA, 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 2045 648 34 RAYA-AS, EG 36992 1843 1531 336 ETISALAT-MISR, EG 24863 1285 389 16 LINKdotNET-AS, EG 36935 1247 524 47 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 587 154 220 NTT-DATA-Inc, ZA 15399 554 57 59 WANANCHI-, KE 36914 542 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 14504 41221 5586 AMAZON-02 - Amazon.com, Inc., US 9808 13765 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12824 3301 596 UNINET, MX 12479 7208 1711 149 UNI2-AS, ES 7545 5957 829 511 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4851 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4652 309 1024 CABLEONE - CABLE ONE, INC., US 18403 4563 347 25 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 13765 13645 CHINAMOBILE-CN China Mobile Communications Grou 8151 12824 12228 UNINET, MX 12479 7208 7059 UNI2-AS, ES 7545 5957 5446 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4563 4538 FPT-AS-AP FPT Telecom Company, VN 9498 4851 4534 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4046 4017 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 /11:95 /12:297 /13:581 /14:1192 /15:2089 /16:13570 /17:8230 /18:13219 /19:25293 /20:45601 /21:52158 /22:113542 /23:106882 /24:651895 /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 6985 12824 UNINET, MX 12479 6150 7208 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3512 4652 CABLEONE - CABLE ONE, INC., US 6327 3493 3713 SHAW - Shaw Communications, CA 22773 3051 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2604 14504 AMAZON-02 - Amazon.com, Inc., US 30036 2320 2669 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) ---------------------------------------------- 1:2488 2:1676 3:999 4:5 5:5195 6:196 7:6 8:1503 9:38 11:172 12:1191 13:659 14:2669 15:459 16:169 17:421 18:917 20:582 21:4 22:188 23:8192 24:2848 25:2 27:2825 28:2 29:19 31:3408 32:36 34:90 35:292 36:4654 37:4466 38:9988 39:1273 40:412 41:4560 42:2208 43:3058 44:447 45:19845 46:4881 47:407 48:99 49:2189 50:2038 51:614 52:1304 54:279 55:1122 56:11 57:317 58:2355 59:1361 60:1175 61:3124 62:3122 63:1750 64:6239 65:2125 66:6009 67:3255 68:1498 69:4222 70:1056 71:605 72:3145 74:2991 75:1488 76:592 77:2890 78:1922 79:1794 80:2329 81:2208 82:4004 83:1435 84:2083 85:3829 86:1095 87:2293 88:1349 89:4704 90:794 91:8406 92:2837 93:3001 94:4314 95:4619 96:1442 97:314 98:943 99:805 100:68 101:1624 102:4478 103:32955 104:5330 105:820 106:924 107:2839 108:1224 109:4208 110:2302 111:4108 112:3162 113:1972 114:2264 115:2287 116:2194 117:3490 118:2994 119:2079 120:2688 121:1543 122:2983 123:2250 124:1689 125:3015 126:125 128:1659 129:954 130:1596 131:2462 132:802 133:463 134:1641 135:608 136:1586 137:1345 138:3162 139:1640 140:1750 141:1675 142:2517 143:2103 144:1707 145:628 146:2193 147:2160 148:2715 149:3054 150:1350 151:2728 152:2306 153:965 154:9480 155:2319 156:4373 157:2268 158:1511 159:2815 160:3826 161:1951 162:4016 163:2428 164:2038 165:2632 166:1300 167:2250 168:3989 169:883 170:5526 171:1117 172:4525 173:3471 174:885 175:1377 176:3821 177:4784 178:4333 179:2349 180:3164 181:4471 182:4002 183:2829 184:2009 185:21781 186:5701 187:4924 188:4568 189:4508 190:9771 191:1559 192:11430 193:9577 194:7840 195:5796 196:3288 197:3325 198:6099 199:6098 200:8080 201:6394 202:10665 203:10629 204:4689 205:3715 206:4472 207:3834 208:4370 209:5391 210:4720 211:2688 212:4978 213:4105 214:1055 215:46 216:7247 217:3534 218:1693 219:420 220:2202 221:1307 222:925 223:3400 End of report