IPv4 R&E Routing Table Report 23:00 GMT Thu 02 Apr, 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: 1036378 Prefixes after maximum aggregation (per Origin AS): 398177 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511625 Number of IPv4 prefixes with a valid ROA: 626581 Number of IPv4 prefixes with an invalid ROA: 432 Number of IPv4 prefixes with no ROA: 409365 Total ASes present in the Internet Routing Table: 78133 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66942 Origin ASes announcing only one prefix: 27297 Transit ASes present in the Internet Routing Table: 11191 Transit-only ASes present in the Internet Routing Table: 590 Paths with bogon ASNs present in the IPv4 Routing Table: 39 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1032 Number of instances of unregistered ASNs: 1064 Number of 32-bit ASNs allocated by the RIRs: 49189 Number of 32-bit ASNs visible in the Routing Table: 40214 Prefixes from 32-bit ASNs in the Routing Table: 226568 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: 402 Number of addresses announced to Internet: 3107393536 Equivalent to 185 /8s, 55 /16s and 16 /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: 337854 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282850 Total APNIC prefixes after maximum aggregation: 82350 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269749 Unique aggregates announced from the APNIC address blocks: 107252 APNIC Region origin ASes present in the Internet Routing Table: 15099 APNIC Prefixes per ASN: 17.87 APNIC Region origin ASes announcing only one prefix: 4596 APNIC Region transit ASes present in the Internet Routing Table: 2036 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: 10686 Number of APNIC addresses announced to Internet: 752880128 Equivalent to 44 /8s, 224 /16s and 10 /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: 302057 Total ARIN prefixes after maximum aggregation: 135692 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301578 Unique aggregates announced from the ARIN address blocks: 146559 ARIN Region origin ASes present in the Internet Routing Table: 19390 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7113 ARIN Region transit ASes present in the Internet Routing Table: 1924 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: 5534 Number of ARIN addresses announced to Internet: 1348365824 Equivalent to 80 /8s, 94 /16s and 110 /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: 286398 Total RIPE prefixes after maximum aggregation: 141756 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 288635 Unique aggregates announced from the RIPE address blocks: 187818 RIPE Region origin ASes present in the Internet Routing Table: 29338 RIPE Prefixes per ASN: 9.84 RIPE Region origin ASes announcing only one prefix: 12154 RIPE Region transit ASes present in the Internet Routing Table: 4062 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: 13209 Number of RIPE addresses announced to Internet: 732671488 Equivalent to 43 /8s, 171 /16s and 174 /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: 127031 Total LACNIC prefixes after maximum aggregation: 30739 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 122540 Unique aggregates announced from the LACNIC address blocks: 50242 LACNIC Region origin ASes present in the Internet Routing Table: 11375 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2697 LACNIC Region transit ASes present in the Internet Routing Table: 2584 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: 9404 Number of LACNIC addresses announced to Internet: 169914624 Equivalent to 10 /8s, 32 /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: 37010 Total AfriNIC prefixes after maximum aggregation: 6979 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53474 Unique aggregates announced from the AfriNIC address blocks: 19406 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.52 AfriNIC Region origin ASes announcing only one prefix: 737 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1381 Number of AfriNIC addresses announced to Internet: 103303424 Equivalent to 6 /8s, 40 /16s and 73 /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 13812 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5922 828 501 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4878 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4560 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3663 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3483 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3352 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3009 861 515 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2851 180 552 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 14521 41228 5625 AMAZON-02 - Amazon.com, Inc., US 22773 4783 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4661 309 1027 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3721 1305 77 SHAW - Shaw Communications, CA 396982 3298 4857 490 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3234 8767 822 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2704 222 893 AS-COLOCROSSING - HostPapa, US 30036 2661 364 329 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7172 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3825 3389 110 AKAMAI-ASN1, NL 9009 3818 353 2242 M247, RO 12389 3146 2322 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2703 195 1986 CDNEXT, GB 34984 2451 365 571 TELLCOM-AS, TR 8452 1724 1852 14 TE-AS TE-AS, EG 203020 1632 248 807 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 12826 3294 609 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2463 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 11664 1461 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 71 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2393 95 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 2025 648 34 RAYA-AS, EG 36992 1855 1532 338 ETISALAT-MISR, EG 24863 1295 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1229 521 44 Vodafone-, EG 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 15399 554 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 14521 41228 5625 AMAZON-02 - Amazon.com, Inc., US 9808 13812 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12826 3294 609 UNINET, MX 12479 7172 1711 149 UNI2-AS, ES 7545 5922 828 501 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4878 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4783 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4661 309 1027 CABLEONE - CABLE ONE, INC., US 18403 4560 347 26 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 13812 13692 CHINAMOBILE-CN China Mobile Communications Grou 8151 12826 12217 UNINET, MX 12479 7172 7023 UNI2-AS, ES 7545 5922 5421 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4878 4561 BBIL-AP BHARTI Airtel Ltd., IN 18403 4560 4534 FPT-AS-AP FPT Telecom Company, VN 22773 4783 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4028 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 /14:1190 /15:2094 /16:13575 /17:8228 /18:13234 /19:25332 /20:45639 /21:52134 /22:113493 /23:106857 /24:653559 /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 7000 12826 UNINET, MX 12479 6114 7172 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3521 4661 CABLEONE - CABLE ONE, INC., US 6327 3501 3721 SHAW - Shaw Communications, CA 22773 3054 4783 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2613 14521 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2661 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) ---------------------------------------------- 1:2498 2:1764 3:995 4:5 5:5179 6:196 7:6 8:1488 9:39 11:172 12:1188 13:683 14:2680 15:456 16:169 17:423 18:907 20:583 21:4 22:188 23:8197 24:2856 25:2 27:2820 28:1 29:19 31:3413 32:36 34:90 35:283 36:4657 37:4439 38:10057 39:1278 40:431 41:4542 42:2186 43:3083 44:446 45:19852 46:4865 47:408 48:120 49:2226 50:2018 51:626 52:1295 54:273 55:1115 56:11 57:317 58:2365 59:1389 60:1173 61:3157 62:3118 63:1739 64:6320 65:2136 66:6039 67:3257 68:1500 69:4213 70:1059 71:607 72:3168 74:3003 75:1486 76:592 77:2918 78:1944 79:1789 80:2334 81:2196 82:4017 83:1446 84:2115 85:3792 86:1091 87:2308 88:1346 89:4692 90:784 91:8410 92:2823 93:3008 94:4345 95:4649 96:1446 97:314 98:940 99:809 100:68 101:1620 102:4469 103:32985 104:5330 105:813 106:910 107:2862 108:1240 109:4210 110:2299 111:4131 112:3156 113:1973 114:2265 115:2288 116:2186 117:3505 118:2994 119:2110 120:2689 121:1542 122:2975 123:2270 124:1704 125:3017 126:125 128:1654 129:955 130:1600 131:2458 132:788 133:475 134:1665 135:611 136:1605 137:1347 138:3172 139:1633 140:1759 141:1719 142:2519 143:2121 144:1705 145:644 146:2195 147:2169 148:2729 149:3087 150:1368 151:2742 152:2317 153:990 154:9559 155:2321 156:4486 157:2277 158:1515 159:2810 160:3837 161:1956 162:4025 163:2476 164:2037 165:2631 166:1290 167:2266 168:3980 169:886 170:5529 171:1120 172:4518 173:3459 174:880 175:1377 176:3819 177:4819 178:4358 179:2300 180:3155 181:4488 182:4014 183:2831 184:2018 185:21756 186:5763 187:4946 188:4612 189:4542 190:9801 191:1566 192:11433 193:9578 194:7862 195:5808 196:3336 197:3362 198:6100 199:6076 200:8090 201:6415 202:10672 203:10640 204:4757 205:3722 206:4485 207:3826 208:4378 209:5400 210:4711 211:2690 212:4993 213:4104 214:1056 215:47 216:7275 217:3553 218:1701 219:424 220:2201 221:1312 222:928 223:3416 End of report