IPv4 R&E Routing Table Report 23:00 GMT Thu 05 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: 1028428 Prefixes after maximum aggregation (per Origin AS): 395446 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508177 Number of IPv4 prefixes with a valid ROA: 616193 Number of IPv4 prefixes with an invalid ROA: 467 Number of IPv4 prefixes with no ROA: 411768 Total ASes present in the Internet Routing Table: 77782 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66643 Origin ASes announcing only one prefix: 27174 Transit ASes present in the Internet Routing Table: 11139 Transit-only ASes present in the Internet Routing Table: 572 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: 1066 Number of instances of unregistered ASNs: 1095 Number of 32-bit ASNs allocated by the RIRs: 48594 Number of 32-bit ASNs visible in the Routing Table: 39736 Prefixes from 32-bit ASNs in the Routing Table: 222255 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: 449 Number of addresses announced to Internet: 3102698240 Equivalent to 184 /8s, 239 /16s and 107 /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: 334908 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280339 Total APNIC prefixes after maximum aggregation: 81899 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266982 Unique aggregates announced from the APNIC address blocks: 107200 APNIC Region origin ASes present in the Internet Routing Table: 14998 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 4562 APNIC Region transit ASes present in the Internet Routing Table: 2016 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: 10575 Number of APNIC addresses announced to Internet: 751835904 Equivalent to 44 /8s, 208 /16s and 27 /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: 301202 Total ARIN prefixes after maximum aggregation: 135477 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300822 Unique aggregates announced from the ARIN address blocks: 146321 ARIN Region origin ASes present in the Internet Routing Table: 19380 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7094 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: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5459 Number of ARIN addresses announced to Internet: 1342627584 Equivalent to 80 /8s, 6 /16s and 223 /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: 283102 Total RIPE prefixes after maximum aggregation: 140200 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285265 Unique aggregates announced from the RIPE address blocks: 185355 RIPE Region origin ASes present in the Internet Routing Table: 29155 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12093 RIPE Region transit ASes present in the Internet Routing Table: 4056 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: 12973 Number of RIPE addresses announced to Internet: 733817600 Equivalent to 43 /8s, 189 /16s and 43 /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: 126067 Total LACNIC prefixes after maximum aggregation: 30256 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121908 Unique aggregates announced from the LACNIC address blocks: 49542 LACNIC Region origin ASes present in the Internet Routing Table: 11347 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2686 LACNIC Region transit ASes present in the Internet Routing Table: 2558 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: 9353 Number of LACNIC addresses announced to Internet: 170861056 Equivalent to 10 /8s, 47 /16s and 34 /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: 36652 Total AfriNIC prefixes after maximum aggregation: 6927 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 53002 Unique aggregates announced from the AfriNIC address blocks: 19388 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.34 AfriNIC Region origin ASes announcing only one prefix: 739 AfriNIC Region transit ASes present in the Internet Routing Table: 389 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: 103289344 Equivalent to 6 /8s, 40 /16s and 18 /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 6002 831 553 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4742 545 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4134 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4054 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 2726 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 14118 38819 5509 AMAZON-02 - Amazon.com, Inc., US 22773 4776 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 3702 8769 857 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 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 7239 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3897 364 2229 M247, RO 20940 3821 3393 110 AKAMAI-ASN1, NL 12389 3146 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2579 185 1878 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1720 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 12719 3286 608 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 11664 1409 278 33 Techtel LMDS Comunicaciones Interactivas 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 1055 67 358 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 1284 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1152 521 44 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1071 78 20 ORANGE-COTE-IVOIRE, CI 328608 598 48 170 Africa-on-Cloud-AS, ZA 20011 580 154 212 NTT-DATA-Inc, ZA 36914 561 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 14118 38819 5509 AMAZON-02 - Amazon.com, Inc., US 9808 13686 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12719 3286 608 UNINET, MX 12479 7239 1711 149 UNI2-AS, ES 7545 6002 831 553 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4776 3098 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4742 545 336 BBIL-AP BHARTI Airtel Ltd., IN 11492 4636 308 1023 CABLEONE - CABLE ONE, INC., US 18403 4134 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 12719 12111 UNINET, MX 12479 7239 7090 UNI2-AS, ES 7545 6002 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4776 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4742 4406 BBIL-AP BHARTI Airtel Ltd., IN 18403 4134 4110 FPT-AS-AP FPT Telecom Company, VN 7552 4054 4025 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 201687 UNALLOCATED 5.231.220.0/24 58212 DATAFOREST, DE 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 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 /14:1195 /15:2082 /16:13635 /17:8193 /18:13448 /19:24757 /20:45080 /21:52052 /22:113160 /23:106052 /24:647732 /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 6888 12719 UNINET, MX 12479 6167 7239 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 3049 4776 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2511 14118 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2657 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) ---------------------------------------------- 1:2492 2:1530 3:986 4:9 5:5103 6:187 7:6 8:1497 9:18 11:172 12:1228 13:620 14:2637 15:420 16:182 17:393 18:916 20:597 21:4 22:188 23:8139 24:2625 25:2 27:2819 29:19 31:3472 32:31 34:84 35:290 36:4649 37:4478 38:10417 39:1263 40:436 41:4561 42:1896 43:3012 44:418 45:19758 46:4921 47:401 48:38 49:2186 50:2062 51:598 52:1256 54:241 55:1117 56:11 57:313 58:2343 59:1357 60:1172 61:3137 62:3095 63:1765 64:6188 65:2107 66:5998 67:3252 68:1488 69:4207 70:1052 71:612 72:3075 74:2964 75:1508 76:584 77:2751 78:1926 79:1801 80:2314 81:2173 82:3989 83:1463 84:2038 85:3787 86:1109 87:2245 88:1340 89:4664 90:819 91:8403 92:2851 93:2995 94:4300 95:4557 96:1445 97:312 98:945 99:784 100:69 101:1594 102:4410 103:32906 104:5463 105:790 106:919 107:2844 108:1219 109:4197 110:2310 111:4095 112:3143 113:1976 114:2171 115:2206 116:2192 117:3416 118:2895 119:2098 120:2672 121:1510 122:2960 123:2323 124:1671 125:2990 126:125 128:1653 129:932 130:1578 131:2348 132:772 133:461 134:1627 135:559 136:1631 137:1346 138:2973 139:1618 140:1782 141:1569 142:2468 143:2189 144:1661 145:626 146:2196 147:2267 148:2778 149:2985 150:1334 151:2695 152:2275 153:887 154:9428 155:2292 156:4526 157:2246 158:1507 159:2765 160:3728 161:1989 162:4045 163:2339 164:2019 165:2643 166:1283 167:2226 168:3943 169:910 170:5490 171:1113 172:4568 173:3430 174:892 175:1362 176:3785 177:4728 178:4316 179:2284 180:3095 181:4391 182:3927 183:2817 184:1993 185:21659 186:5560 187:4907 188:4624 189:4485 190:9723 191:1524 192:11459 193:9492 194:7817 195:5630 196:3247 197:3327 198:6076 199:6109 200:8045 201:6394 202:10579 203:10609 204:4712 205:3721 206:4398 207:3812 208:4348 209:5405 210:4731 211:2690 212:4968 213:4042 214:1071 215:54 216:7139 217:3479 218:1669 219:421 220:2196 221:1313 222:927 223:3303 End of report