IPv4 R&E Routing Table Report 23:05 GMT Tue 05 Aug, 2025 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: 991641 Prefixes after maximum aggregation (per Origin AS): 384103 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488785 Number of IPv4 prefixes with a valid ROA: 546553 Number of IPv4 prefixes with an invalid ROA: 849 Number of IPv4 prefixes with no ROA: 444239 Total ASes present in the Internet Routing Table: 77039 Prefixes per ASN: 12.87 Origin-only ASes present in the Internet Routing Table: 66009 Origin ASes announcing only one prefix: 26945 Transit ASes present in the Internet Routing Table: 11030 Transit-only ASes present in the Internet Routing Table: 556 Paths with bogon ASNs present in the IPv4 Routing Table: 26 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 1153 Number of instances of unregistered ASNs: 1185 Number of 32-bit ASNs allocated by the RIRs: 47054 Number of 32-bit ASNs visible in the Routing Table: 38687 Prefixes from 32-bit ASNs in the Routing Table: 207099 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 432 Number of addresses announced to Internet: 3107415808 Equivalent to 185 /8s, 55 /16s and 103 /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: 323052 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264340 Total APNIC prefixes after maximum aggregation: 78154 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 255335 Unique aggregates announced from the APNIC address blocks: 105132 APNIC Region origin ASes present in the Internet Routing Table: 14706 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 4470 APNIC Region transit ASes present in the Internet Routing Table: 2001 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: 10264 Number of APNIC addresses announced to Internet: 749612288 Equivalent to 44 /8s, 174 /16s and 45 /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: 290361 Total ARIN prefixes after maximum aggregation: 132080 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 292069 Unique aggregates announced from the ARIN address blocks: 141674 ARIN Region origin ASes present in the Internet Routing Table: 19225 ARIN Prefixes per ASN: 15.19 ARIN Region origin ASes announcing only one prefix: 7049 ARIN Region transit ASes present in the Internet Routing Table: 1926 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5269 Number of ARIN addresses announced to Internet: 1349300480 Equivalent to 80 /8s, 108 /16s and 177 /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: 276272 Total RIPE prefixes after maximum aggregation: 136378 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275248 Unique aggregates announced from the RIPE address blocks: 178314 RIPE Region origin ASes present in the Internet Routing Table: 28978 RIPE Prefixes per ASN: 9.50 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 4003 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12608 Number of RIPE addresses announced to Internet: 732104704 Equivalent to 43 /8s, 163 /16s and 8 /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: 124700 Total LACNIC prefixes after maximum aggregation: 29912 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121003 Unique aggregates announced from the LACNIC address blocks: 49175 LACNIC Region origin ASes present in the Internet Routing Table: 11273 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2521 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9236 Number of LACNIC addresses announced to Internet: 171132928 Equivalent to 10 /8s, 51 /16s and 72 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 34815 Total AfriNIC prefixes after maximum aggregation: 6836 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 47554 Unique aggregates announced from the AfriNIC address blocks: 14109 AfriNIC Region origin ASes present in the Internet Routing Table: 1944 AfriNIC Prefixes per ASN: 24.46 AfriNIC Region origin ASes announcing only one prefix: 705 AfriNIC Region transit ASes present in the Internet Routing Table: 375 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 41 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1310 Number of AfriNIC addresses announced to Internet: 105019392 Equivalent to 6 /8s, 66 /16s and 120 /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 12554 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6138 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4591 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2916 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2891 812 178 CMNET-JIANGSU-AP China Mobile communicati 4755 2176 427 184 TATACOMM-AS TATA Communications formerly 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 13689 41053 5256 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3499 8769 852 COGENT-174, US 22773 3341 3030 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3202 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 2921 1236 2176 AKAMAI-AS, US 4155 2902 220 1740 USDA-1, 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 7566 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3908 3395 123 AKAMAI-ASN1, NL 9009 3857 366 2171 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2312 163 1681 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1579 1852 14 TE-AS TE-AS, EG 203020 1524 191 672 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 12333 3272 577 UNINET, MX 10620 3480 473 1036 Telmex Colombia S.A., CO 13999 2522 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1372 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1187 371 22 Telefonica del Peru S.A.A., PE 11664 1070 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1019 373 162 Axtel, S.A.B. de C.V., MX 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 1766 660 28 RAYA-AS, EG 29571 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1417 1494 375 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1233 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 966 520 43 Vodafone-, EG 36914 571 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 533 56 53 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 13689 41053 5256 AMAZON-02, US 9808 12554 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12333 3272 577 UNINET, MX 12479 7566 1711 153 UNI2-AS, ES 7545 6138 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4591 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, 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 12554 12438 CHINAMOBILE-CN China Mobile Communications Grou 8151 12333 11756 UNINET, MX 12479 7566 7413 UNI2-AS, ES 7545 6138 5515 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4591 4564 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4463 4152 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 3882 VIETEL-AS-AP Viettel Group, VN 20940 3908 3785 AKAMAI-ASN1, NL 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 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.143.76.0/24 Origin: 401896 MISIU-USA, US 23.143.76.0/24 Transit: 20473 AS-VULTR, 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 /10:41 /11:92 /12:298 /13:577 /14:1199 /15:2129 /16:13761 /17:8157 /18:13424 /19:24444 /20:43845 /21:51571 /22:111819 /23:102609 /24:617645 /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 6551 12333 UNINET, MX 12479 6527 7566 UNI2-AS, ES 11492 3619 4827 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2492 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13689 AMAZON-02, US 30036 2293 2634 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2196 3480 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) ---------------------------------------------- 1:2425 2:1496 3:867 4:10 5:4756 6:163 7:6 8:1543 9:2 11:172 12:1336 13:454 14:2581 15:368 16:286 17:376 18:897 20:562 21:4 22:188 23:7728 24:2670 25:2 27:2783 29:19 31:3359 32:35 33:1 34:83 35:260 36:4179 37:4562 38:9550 39:952 40:249 41:4279 42:2056 43:2733 44:376 45:18722 46:5066 47:336 49:1899 50:2039 51:591 52:1551 54:325 55:1101 56:11 57:270 58:2221 59:1300 60:1184 61:2914 62:2992 63:1776 64:5547 65:2156 66:4740 67:3089 68:1067 69:3885 70:1037 71:624 72:2848 74:2798 75:1505 76:610 77:2779 78:1895 79:1716 80:2205 81:2049 82:3201 83:1436 84:1914 85:3467 86:1095 87:2131 88:1311 89:4420 90:775 91:8410 92:2734 93:2940 94:4082 95:4400 96:1449 97:309 98:955 99:692 100:71 101:1469 102:3874 103:32838 104:5270 105:805 106:976 107:2641 108:1254 109:4185 110:2242 111:3473 112:2386 113:1855 114:1969 115:2204 116:2093 117:2660 118:2975 119:1937 120:2191 121:1324 122:2791 123:2234 124:1707 125:2902 126:91 128:1584 129:965 130:1287 131:2056 132:777 133:450 134:1599 135:351 136:1464 137:1126 138:2832 139:1598 140:1626 141:1528 142:1916 143:1962 144:1175 145:569 146:2177 147:2099 148:2726 149:2947 150:1292 151:2269 152:2091 153:525 154:7583 155:1857 156:3056 157:1943 158:1358 159:2522 160:3596 161:1903 162:3880 163:2243 164:1873 165:2445 166:1531 167:2018 168:3981 169:779 170:5179 171:999 172:4233 173:3411 174:919 175:1325 176:3735 177:4791 178:3944 179:2316 180:2728 181:4143 182:3588 183:2323 184:2063 185:21582 186:5262 187:4673 188:4274 189:4383 190:9571 191:1511 192:11311 193:9468 194:7779 195:5593 196:3273 197:3181 198:6085 199:8605 200:8088 201:6410 202:10384 203:10632 204:4578 205:3565 206:4495 207:3513 208:4265 209:5146 210:4634 211:2603 212:4604 213:3810 214:1025 215:50 216:6778 217:3250 218:1409 219:399 220:2152 221:1205 222:740 223:2749 End of report