IPv4 R&E Routing Table Report 23:00 GMT Mon 23 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: 1032358 Prefixes after maximum aggregation (per Origin AS): 396970 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510089 Number of IPv4 prefixes with a valid ROA: 620615 Number of IPv4 prefixes with an invalid ROA: 539 Number of IPv4 prefixes with no ROA: 411204 Total ASes present in the Internet Routing Table: 77933 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66774 Origin ASes announcing only one prefix: 27256 Transit ASes present in the Internet Routing Table: 11159 Transit-only ASes present in the Internet Routing Table: 576 Paths with bogon ASNs present in the IPv4 Routing Table: 43 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: 1101 Number of instances of unregistered ASNs: 1131 Number of 32-bit ASNs allocated by the RIRs: 48844 Number of 32-bit ASNs visible in the Routing Table: 39903 Prefixes from 32-bit ASNs in the Routing Table: 223334 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 427 Number of addresses announced to Internet: 3112886784 Equivalent to 185 /8s, 138 /16s and 226 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 335936 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281488 Total APNIC prefixes after maximum aggregation: 81851 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268241 Unique aggregates announced from the APNIC address blocks: 107321 APNIC Region origin ASes present in the Internet Routing Table: 15036 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4575 APNIC Region transit ASes present in the Internet Routing Table: 2021 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10620 Number of APNIC addresses announced to Internet: 752135936 Equivalent to 44 /8s, 212 /16s and 175 /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: 302588 Total ARIN prefixes after maximum aggregation: 136303 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301500 Unique aggregates announced from the ARIN address blocks: 146859 ARIN Region origin ASes present in the Internet Routing Table: 19373 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7097 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: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5478 Number of ARIN addresses announced to Internet: 1352347904 Equivalent to 80 /8s, 155 /16s and 49 /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: 284454 Total RIPE prefixes after maximum aggregation: 140852 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 286911 Unique aggregates announced from the RIPE address blocks: 186288 RIPE Region origin ASes present in the Internet Routing Table: 29262 RIPE Prefixes per ASN: 9.80 RIPE Region origin ASes announcing only one prefix: 12162 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: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13069 Number of RIPE addresses announced to Internet: 732909312 Equivalent to 43 /8s, 175 /16s and 79 /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: 126174 Total LACNIC prefixes after maximum aggregation: 30333 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 121922 Unique aggregates announced from the LACNIC address blocks: 49622 LACNIC Region origin ASes present in the Internet Routing Table: 11348 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2560 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: 9357 Number of LACNIC addresses announced to Internet: 170922240 Equivalent to 10 /8s, 48 /16s and 17 /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: 36553 Total AfriNIC prefixes after maximum aggregation: 6918 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53357 Unique aggregates announced from the AfriNIC address blocks: 19623 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.52 AfriNIC Region origin ASes announcing only one prefix: 740 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: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103333376 Equivalent to 6 /8s, 40 /16s and 190 /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 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5994 831 545 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4791 546 333 BBIL-AP BHARTI Airtel Ltd., IN 18403 4549 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4071 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3469 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3326 1868 99 VNPT-AS-VN VNPT Corp, VN 17561 3153 198 585 LCS-AS-AP LARUS Limited, HK 24560 2982 864 503 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 14319 41152 5577 AMAZON-02 - Amazon.com, Inc., US 22773 4784 3099 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1021 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 174 3634 8769 862 COGENT-174 - Cogent Communications, LLC, 396982 3324 4856 493 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2776 1200 2116 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2697 221 893 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 7235 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3829 3393 112 AKAMAI-ASN1, NL 9009 3799 354 2225 M247, RO 12389 3142 2316 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2633 190 1929 CDNEXT, GB 34984 2439 364 572 TELLCOM-AS, TR 8452 1689 1852 14 TE-AS TE-AS, EG 203020 1604 243 782 HOSTROYALE, IN 13188 1568 98 85 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 12683 3309 603 UNINET, MX 10620 3449 457 1104 Telmex Colombia S.A., CO 13999 2454 506 354 Mega Cable, S.A. de C.V., MX 11830 1974 369 65 Instituto Costarricense de Electricidad y 11664 1418 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1255 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1056 2475 94 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 1908 612 30 RAYA-AS, EG 36992 1845 1532 339 ETISALAT-MISR, EG 24863 1287 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1112 11 MOBINIL, EG 36935 1104 522 46 Vodafone-, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 575 153 209 NTT-DATA-Inc, ZA 328608 561 47 172 Africa-on-Cloud-AS, ZA 15399 553 57 59 WANANCHI-, 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 14319 41152 5577 AMAZON-02 - Amazon.com, Inc., US 9808 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12683 3309 603 UNINET, MX 12479 7235 1711 149 UNI2-AS, ES 7545 5994 831 545 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4791 546 333 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 3099 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1021 CABLEONE - CABLE ONE, INC., US 18403 4549 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 13725 13605 CHINAMOBILE-CN China Mobile Communications Grou 8151 12683 12080 UNINET, MX 12479 7235 7086 UNI2-AS, ES 7545 5994 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4549 4525 FPT-AS-AP FPT Telecom Company, VN 9498 4791 4458 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 4418 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4071 4042 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 203090 UNALLOCATED 5.231.244.0/24 206216 ADVIN-AS, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 18712 EVERFAST-KC - Everfast 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 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 /12:299 /13:581 /14:1196 /15:2102 /16:13636 /17:8205 /18:13481 /19:25314 /20:45177 /21:52186 /22:113215 /23:106749 /24:650052 /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 6850 12683 UNINET, MX 12479 6163 7235 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 3054 4784 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2604 14319 AMAZON-02 - Amazon.com, Inc., US 30036 2306 2651 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2229 3449 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) ---------------------------------------------- 1:2512 2:1561 3:981 4:9 5:5156 6:190 7:6 8:1494 9:26 11:172 12:1187 13:641 14:2662 15:455 16:174 17:399 18:916 20:600 21:4 22:188 23:8094 24:2631 25:2 27:2821 29:19 31:3413 32:30 34:84 35:289 36:4644 37:4444 38:10329 39:1267 40:443 41:4538 42:2025 43:3020 44:437 45:19914 46:4913 47:403 48:38 49:2208 50:2071 51:599 52:1275 54:260 55:1117 56:11 57:313 58:2363 59:1359 60:1174 61:3148 62:3122 63:1763 64:6226 65:2118 66:6017 67:3253 68:1493 69:4239 70:1043 71:611 72:3111 74:2952 75:1501 76:585 77:2825 78:1908 79:1794 80:2339 81:2217 82:3999 83:1452 84:2040 85:3826 86:1104 87:2251 88:1343 89:4705 90:809 91:8441 92:2841 93:3012 94:4325 95:4572 96:1448 97:312 98:952 99:792 100:69 101:1594 102:4435 103:32965 104:5532 105:789 106:924 107:2848 108:1213 109:4213 110:2299 111:4103 112:3151 113:1978 114:2176 115:2253 116:2189 117:3472 118:3025 119:2084 120:2677 121:1509 122:2967 123:2331 124:1681 125:2994 126:125 128:1659 129:949 130:1577 131:2373 132:780 133:461 134:1640 135:563 136:1624 137:1337 138:3098 139:1628 140:1782 141:1574 142:2479 143:2151 144:1719 145:626 146:2194 147:2192 148:2778 149:2989 150:1333 151:2667 152:2272 153:943 154:9669 155:2285 156:4590 157:2254 158:1494 159:2761 160:3726 161:1963 162:4006 163:2395 164:2023 165:2616 166:1269 167:2227 168:3936 169:886 170:5492 171:1121 172:4559 173:3441 174:886 175:1371 176:3800 177:4723 178:4336 179:2296 180:3181 181:4414 182:3965 183:2840 184:2004 185:21738 186:5645 187:4859 188:4564 189:4459 190:9730 191:1537 192:11417 193:9586 194:7836 195:5687 196:3282 197:3307 198:6097 199:6131 200:8058 201:6369 202:10603 203:10603 204:4719 205:3737 206:4439 207:3829 208:4354 209:5418 210:4725 211:2684 212:4978 213:4080 214:1071 215:54 216:7196 217:3521 218:1673 219:416 220:2198 221:1315 222:934 223:3320 End of report