IPv4 R&E Routing Table Report 23:00 GMT Sat 07 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: 1028604 Prefixes after maximum aggregation (per Origin AS): 395679 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508204 Number of IPv4 prefixes with a valid ROA: 616423 Number of IPv4 prefixes with an invalid ROA: 492 Number of IPv4 prefixes with no ROA: 411689 Total ASes present in the Internet Routing Table: 77785 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66652 Origin ASes announcing only one prefix: 27160 Transit ASes present in the Internet Routing Table: 11133 Transit-only ASes present in the Internet Routing Table: 575 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: 1063 Number of instances of unregistered ASNs: 1092 Number of 32-bit ASNs allocated by the RIRs: 48643 Number of 32-bit ASNs visible in the Routing Table: 39756 Prefixes from 32-bit ASNs in the Routing Table: 222345 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: 439 Number of addresses announced to Internet: 3102386944 Equivalent to 184 /8s, 234 /16s and 171 /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: 334964 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280432 Total APNIC prefixes after maximum aggregation: 81947 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266986 Unique aggregates announced from the APNIC address blocks: 107115 APNIC Region origin ASes present in the Internet Routing Table: 14989 APNIC Prefixes per ASN: 17.81 APNIC Region origin ASes announcing only one prefix: 4549 APNIC Region transit ASes present in the Internet Routing Table: 2010 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: 10568 Number of APNIC addresses announced to Internet: 751887872 Equivalent to 44 /8s, 208 /16s and 230 /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: 301309 Total ARIN prefixes after maximum aggregation: 135656 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300837 Unique aggregates announced from the ARIN address blocks: 146299 ARIN Region origin ASes present in the Internet Routing Table: 19371 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7091 ARIN Region transit ASes present in the Internet Routing Table: 1921 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: 5459 Number of ARIN addresses announced to Internet: 1342407168 Equivalent to 80 /8s, 3 /16s and 130 /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: 283036 Total RIPE prefixes after maximum aggregation: 140230 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285338 Unique aggregates announced from the RIPE address blocks: 185492 RIPE Region origin ASes present in the Internet Routing Table: 29171 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12104 RIPE Region transit ASes present in the Internet Routing Table: 4053 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: 12993 Number of RIPE addresses announced to Internet: 733652992 Equivalent to 43 /8s, 186 /16s and 168 /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: 126141 Total LACNIC prefixes after maximum aggregation: 30246 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121989 Unique aggregates announced from the LACNIC address blocks: 49563 LACNIC Region origin ASes present in the Internet Routing Table: 11350 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2679 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: 9360 Number of LACNIC addresses announced to Internet: 170868480 Equivalent to 10 /8s, 47 /16s and 63 /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: 36623 Total AfriNIC prefixes after maximum aggregation: 6914 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53015 Unique aggregates announced from the AfriNIC address blocks: 19368 AfriNIC Region origin ASes present in the Internet Routing Table: 2011 AfriNIC Prefixes per ASN: 26.36 AfriNIC Region origin ASes announcing only one prefix: 737 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: 58 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1376 Number of AfriNIC addresses announced to Internet: 103338496 Equivalent to 6 /8s, 40 /16s and 210 /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 13686 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6003 831 553 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4746 545 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4113 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4061 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3427 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2969 865 496 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2733 171 528 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 14109 38819 5514 AMAZON-02 - Amazon.com, Inc., US 22773 4775 3098 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4636 308 1023 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 174 3709 8769 861 COGENT-174 - Cogent Communications, LLC, 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3310 4856 487 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 2696 221 889 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 7237 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3895 364 2227 M247, RO 20940 3823 3393 110 AKAMAI-ASN1, NL 12389 3144 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2579 185 1878 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 12717 3285 606 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2478 506 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 65 Instituto Costarricense de Electricidad y 11664 1414 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 1256 371 22 INTEGRATEL PERU S.A.A., PE 22884 1054 67 357 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1020 2486 57 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 1983 646 33 RAYA-AS, EG 36992 1844 1532 338 ETISALAT-MISR, EG 24863 1285 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1164 521 44 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 328608 597 48 175 Africa-on-Cloud-AS, ZA 20011 580 154 212 NTT-DATA-Inc, ZA 36914 559 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 14109 38819 5514 AMAZON-02 - Amazon.com, Inc., US 9808 13686 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12717 3285 606 UNINET, MX 12479 7237 1711 149 UNI2-AS, ES 7545 6003 831 553 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 4746 545 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4636 308 1023 CABLEONE - CABLE ONE, INC., US 18403 4113 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 13686 13566 CHINAMOBILE-CN China Mobile Communications Grou 8151 12717 12111 UNINET, MX 12479 7237 7088 UNI2-AS, ES 7545 6003 5450 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 4746 4409 BBIL-AP BHARTI Airtel Ltd., IN 18403 4113 4089 FPT-AS-AP FPT Telecom Company, VN 7552 4061 4032 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 /15:2085 /16:13625 /17:8193 /18:13459 /19:24764 /20:45080 /21:52051 /22:113236 /23:106095 /24:647780 /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 6883 12717 UNINET, MX 12479 6165 7237 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3496 4636 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3048 4775 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2513 14109 AMAZON-02 - Amazon.com, Inc., US 30036 2311 2656 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) ---------------------------------------------- 1:2474 2:1530 3:985 4:9 5:5111 6:187 7:6 8:1499 9:22 11:172 12:1228 13:619 14:2642 15:420 16:178 17:397 18:916 20:597 21:4 22:188 23:8150 24:2623 25:2 27:2821 29:19 31:3442 32:31 34:84 35:290 36:4648 37:4479 38:10412 39:1263 40:439 41:4545 42:1879 43:3018 44:420 45:19784 46:4928 47:401 48:38 49:2204 50:2066 51:598 52:1257 54:241 55:1117 56:11 57:313 58:2341 59:1357 60:1173 61:3139 62:3091 63:1766 64:6193 65:2109 66:6013 67:3251 68:1487 69:4209 70:1051 71:613 72:3075 74:2949 75:1507 76:584 77:2760 78:1915 79:1799 80:2317 81:2176 82:4012 83:1463 84:2036 85:3790 86:1107 87:2247 88:1343 89:4667 90:819 91:8397 92:2848 93:3005 94:4284 95:4561 96:1448 97:311 98:946 99:784 100:70 101:1597 102:4406 103:32923 104:5467 105:790 106:922 107:2845 108:1218 109:4165 110:2309 111:4096 112:3147 113:1956 114:2172 115:2206 116:2192 117:3421 118:2894 119:2097 120:2671 121:1508 122:2960 123:2311 124:1666 125:2989 126:125 128:1654 129:925 130:1580 131:2346 132:775 133:461 134:1626 135:560 136:1633 137:1344 138:3004 139:1616 140:1772 141:1570 142:2466 143:2190 144:1658 145:627 146:2197 147:2248 148:2783 149:2984 150:1327 151:2691 152:2276 153:886 154:9456 155:2300 156:4562 157:2241 158:1502 159:2765 160:3728 161:1976 162:4047 163:2343 164:2024 165:2630 166:1286 167:2225 168:3952 169:914 170:5494 171:1115 172:4570 173:3434 174:892 175:1359 176:3790 177:4767 178:4387 179:2284 180:3089 181:4410 182:3930 183:2819 184:1992 185:21679 186:5563 187:4892 188:4534 189:4496 190:9738 191:1529 192:11435 193:9499 194:7809 195:5644 196:3247 197:3296 198:6076 199:6113 200:8048 201:6396 202:10575 203:10595 204:4713 205:3713 206:4403 207:3815 208:4357 209:5387 210:4730 211:2690 212:4962 213:4054 214:1063 215:54 216:7118 217:3470 218:1669 219:421 220:2192 221:1314 222:933 223:3303 End of report