IPv4 R&E Routing Table Report 23:00 GMT Wed 04 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: 1028241 Prefixes after maximum aggregation (per Origin AS): 395540 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 508070 Number of IPv4 prefixes with a valid ROA: 615826 Number of IPv4 prefixes with an invalid ROA: 571 Number of IPv4 prefixes with no ROA: 411844 Total ASes present in the Internet Routing Table: 77745 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 66628 Origin ASes announcing only one prefix: 27161 Transit ASes present in the Internet Routing Table: 11117 Transit-only ASes present in the Internet Routing Table: 568 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: 1065 Number of instances of unregistered ASNs: 1094 Number of 32-bit ASNs allocated by the RIRs: 48569 Number of 32-bit ASNs visible in the Routing Table: 39712 Prefixes from 32-bit ASNs in the Routing Table: 221995 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: 455 Number of addresses announced to Internet: 3101901568 Equivalent to 184 /8s, 227 /16s and 67 /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: 334775 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280331 Total APNIC prefixes after maximum aggregation: 81890 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 266882 Unique aggregates announced from the APNIC address blocks: 107118 APNIC Region origin ASes present in the Internet Routing Table: 14990 APNIC Prefixes per ASN: 17.80 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: 10569 Number of APNIC addresses announced to Internet: 751745280 Equivalent to 44 /8s, 206 /16s and 185 /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: 301264 Total ARIN prefixes after maximum aggregation: 135409 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300843 Unique aggregates announced from the ARIN address blocks: 146331 ARIN Region origin ASes present in the Internet Routing Table: 19367 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7080 ARIN Region transit ASes present in the Internet Routing Table: 1919 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: 5453 Number of ARIN addresses announced to Internet: 1342141440 Equivalent to 79 /8s, 255 /16s and 116 /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: 282932 Total RIPE prefixes after maximum aggregation: 140135 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285159 Unique aggregates announced from the RIPE address blocks: 185349 RIPE Region origin ASes present in the Internet Routing Table: 29147 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: 4049 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: 12965 Number of RIPE addresses announced to Internet: 733703680 Equivalent to 43 /8s, 187 /16s and 110 /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: 125984 Total LACNIC prefixes after maximum aggregation: 30504 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121858 Unique aggregates announced from the LACNIC address blocks: 49515 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: 2688 LACNIC Region transit ASes present in the Internet Routing Table: 2555 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: 9347 Number of LACNIC addresses announced to Internet: 170834432 Equivalent to 10 /8s, 46 /16s and 186 /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: 36665 Total AfriNIC prefixes after maximum aggregation: 6916 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53044 Unique aggregates announced from the AfriNIC address blocks: 19384 AfriNIC Region origin ASes present in the Internet Routing Table: 2013 AfriNIC Prefixes per ASN: 26.35 AfriNIC Region origin ASes announcing only one prefix: 740 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103206144 Equivalent to 6 /8s, 38 /16s and 205 /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 6006 832 558 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4736 544 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4119 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4051 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3426 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3327 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2968 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 14104 38818 5503 AMAZON-02 - Amazon.com, Inc., US 22773 4776 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 174 3725 8767 858 COGENT-174 - Cogent Communications, LLC, 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3323 4866 497 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 7244 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3897 364 2229 M247, RO 20940 3822 3393 112 AKAMAI-ASN1, NL 12389 3146 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2569 183 1868 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 1586 241 766 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 12707 3286 606 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2485 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 1020 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 1284 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1140 521 44 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 328608 597 48 170 Africa-on-Cloud-AS, ZA 20011 580 154 212 NTT-DATA-Inc, ZA 36914 558 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 14104 38818 5503 AMAZON-02 - Amazon.com, Inc., US 9808 13628 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12707 3286 606 UNINET, MX 12479 7244 1711 149 UNI2-AS, ES 7545 6006 832 558 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 4736 544 335 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4119 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 12707 12101 UNINET, MX 12479 7244 7095 UNI2-AS, ES 7545 6006 5448 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 4736 4401 BBIL-AP BHARTI Airtel Ltd., IN 18403 4119 4095 FPT-AS-AP FPT Telecom Company, VN 7552 4051 4022 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 /16:13633 /17:8187 /18:13430 /19:24758 /20:45061 /21:52063 /22:113196 /23:106048 /24:647547 /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 6875 12707 UNINET, MX 12479 6172 7244 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 4776 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2509 14104 AMAZON-02 - Amazon.com, Inc., US 30036 2310 2655 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2224 3444 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) ---------------------------------------------- 1:2480 2:1529 3:981 4:9 5:5105 6:185 7:6 8:1497 9:18 11:172 12:1224 13:623 14:2634 15:421 16:182 17:393 18:915 20:597 21:4 22:188 23:8133 24:2626 25:2 27:2775 29:19 31:3444 32:31 34:84 35:291 36:4645 37:4477 38:10395 39:1261 40:436 41:4540 42:1896 43:3008 44:417 45:19757 46:4927 47:401 48:38 49:2185 50:2061 51:598 52:1258 54:241 55:1128 56:11 57:312 58:2341 59:1351 60:1172 61:3138 62:3088 63:1760 64:6192 65:2106 66:6010 67:3249 68:1485 69:4203 70:1051 71:612 72:3074 74:2965 75:1509 76:583 77:2745 78:1926 79:1800 80:2313 81:2177 82:3983 83:1464 84:2022 85:3784 86:1106 87:2253 88:1336 89:4661 90:820 91:8400 92:2854 93:2997 94:4300 95:4559 96:1449 97:312 98:945 99:784 100:69 101:1594 102:4382 103:32912 104:5461 105:790 106:919 107:2845 108:1223 109:4186 110:2310 111:4088 112:3140 113:1972 114:2171 115:2250 116:2191 117:3380 118:2887 119:2097 120:2669 121:1510 122:2959 123:2316 124:1669 125:2987 126:125 128:1654 129:934 130:1576 131:2351 132:772 133:461 134:1622 135:560 136:1632 137:1351 138:2964 139:1619 140:1767 141:1570 142:2472 143:2265 144:1671 145:626 146:2195 147:2273 148:2786 149:2989 150:1329 151:2688 152:2272 153:869 154:9467 155:2301 156:4531 157:2247 158:1507 159:2761 160:3755 161:1991 162:4044 163:2345 164:2021 165:2643 166:1280 167:2232 168:3937 169:908 170:5491 171:1116 172:4565 173:3427 174:892 175:1361 176:3779 177:4727 178:4317 179:2292 180:3105 181:4397 182:3925 183:2816 184:1994 185:21656 186:5564 187:4877 188:4618 189:4482 190:9724 191:1528 192:11456 193:9486 194:7819 195:5627 196:3250 197:3332 198:6077 199:6105 200:8053 201:6395 202:10579 203:10591 204:4711 205:3707 206:4396 207:3813 208:4353 209:5392 210:4730 211:2689 212:4954 213:4050 214:1070 215:54 216:7135 217:3467 218:1669 219:421 220:2199 221:1310 222:925 223:3300 End of report