IPv4 R&E Routing Table Report 23:05 GMT Sat 09 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: 991602 Prefixes after maximum aggregation (per Origin AS): 384433 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488925 Number of IPv4 prefixes with a valid ROA: 547700 Number of IPv4 prefixes with an invalid ROA: 997 Number of IPv4 prefixes with no ROA: 442905 Total ASes present in the Internet Routing Table: 77074 Prefixes per ASN: 12.87 Origin-only ASes present in the Internet Routing Table: 66001 Origin ASes announcing only one prefix: 26973 Transit ASes present in the Internet Routing Table: 11073 Transit-only ASes present in the Internet Routing Table: 552 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: 1099 Number of instances of unregistered ASNs: 1131 Number of 32-bit ASNs allocated by the RIRs: 47097 Number of 32-bit ASNs visible in the Routing Table: 38734 Prefixes from 32-bit ASNs in the Routing Table: 207142 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: 394 Number of addresses announced to Internet: 3107503616 Equivalent to 185 /8s, 56 /16s and 190 /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: 322997 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264573 Total APNIC prefixes after maximum aggregation: 78220 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 255485 Unique aggregates announced from the APNIC address blocks: 104959 APNIC Region origin ASes present in the Internet Routing Table: 14729 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 4481 APNIC Region transit ASes present in the Internet Routing Table: 2011 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: 10289 Number of APNIC addresses announced to Internet: 749506816 Equivalent to 44 /8s, 172 /16s and 145 /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: 290525 Total ARIN prefixes after maximum aggregation: 132172 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 292043 Unique aggregates announced from the ARIN address blocks: 141807 ARIN Region origin ASes present in the Internet Routing Table: 19233 ARIN Prefixes per ASN: 15.18 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: 5276 Number of ARIN addresses announced to Internet: 1349324544 Equivalent to 80 /8s, 109 /16s and 15 /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: 276664 Total RIPE prefixes after maximum aggregation: 136597 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275685 Unique aggregates announced from the RIPE address blocks: 178561 RIPE Region origin ASes present in the Internet Routing Table: 28985 RIPE Prefixes per ASN: 9.51 RIPE Region origin ASes announcing only one prefix: 12079 RIPE Region transit ASes present in the Internet Routing Table: 4023 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: 12619 Number of RIPE addresses announced to Internet: 732139008 Equivalent to 43 /8s, 163 /16s and 142 /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: 124083 Total LACNIC prefixes after maximum aggregation: 29927 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 120407 Unique aggregates announced from the LACNIC address blocks: 49082 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2656 LACNIC Region transit ASes present in the Internet Routing Table: 2535 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: 9240 Number of LACNIC addresses announced to Internet: 171170560 Equivalent to 10 /8s, 51 /16s and 219 /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: 34658 Total AfriNIC prefixes after maximum aggregation: 6791 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 47588 Unique aggregates announced from the AfriNIC address blocks: 14169 AfriNIC Region origin ASes present in the Internet Routing Table: 1946 AfriNIC Prefixes per ASN: 24.45 AfriNIC Region origin ASes announcing only one prefix: 708 AfriNIC Region transit ASes present in the Internet Routing Table: 379 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: 105129728 Equivalent to 6 /8s, 68 /16s and 39 /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 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6140 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4576 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3709 1044 67 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1869 101 VNPT-AS-VN VNPT Corp, VN 56046 2968 812 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2922 865 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2179 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 13774 41094 5305 AMAZON-02, US 11492 4783 317 680 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3642 1320 82 SHAW, CA 174 3627 8769 848 COGENT-174, US 22773 3338 3030 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3204 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 2917 1231 2173 AKAMAI-AS, US 4155 2908 227 1732 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 7568 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3907 3395 123 AKAMAI-ASN1, NL 9009 3860 366 2177 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2327 164 1692 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1581 1852 14 TE-AS TE-AS, EG 203020 1521 191 669 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 12326 3272 577 UNINET, MX 10620 3475 472 1052 Telmex Colombia S.A., CO 13999 2529 511 354 Mega Cable, S.A. de C.V., MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1183 371 22 Telefonica del Peru S.A.A., PE 11664 1069 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 2487 55 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 1770 660 28 RAYA-AS, EG 29571 1488 94 32 ORANGE-COTE-IVOIRE, CI 36992 1416 1494 373 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 529 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 13774 41094 5305 AMAZON-02, US 9808 12613 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12326 3272 577 UNINET, MX 12479 7568 1711 153 UNI2-AS, ES 7545 6140 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4783 317 680 CABLEONE, US 18403 4576 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 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 12613 12498 CHINAMOBILE-CN China Mobile Communications Grou 8151 12326 11749 UNINET, MX 12479 7568 7415 UNI2-AS, ES 7545 6140 5517 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4576 4549 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4783 4103 CABLEONE, US 7552 3942 3915 VIETEL-AS-AP Viettel Group, VN 20940 3907 3784 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /16:13765 /17:8163 /18:13427 /19:24431 /20:43867 /21:51619 /22:111916 /23:102703 /24:617345 /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 6545 12326 UNINET, MX 12479 6529 7568 UNI2-AS, ES 11492 3593 4783 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3439 3642 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2489 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 13774 AMAZON-02, US 30036 2297 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3475 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) ---------------------------------------------- 1:2424 2:1497 3:874 4:10 5:4762 6:157 7:6 8:1543 9:2 11:172 12:1336 13:471 14:2583 15:370 16:286 17:379 18:898 20:563 21:4 22:188 23:7745 24:2652 25:2 27:2786 29:19 31:3370 32:35 33:1 34:83 35:260 36:4229 37:4568 38:9517 39:965 40:256 41:4276 42:2046 43:2728 44:378 45:18682 46:5094 47:338 49:1889 50:2044 51:592 52:1553 54:324 55:908 56:11 57:271 58:2220 59:1293 60:1173 61:2919 62:3006 63:1778 64:5555 65:2147 66:4740 67:3093 68:1070 69:3879 70:1038 71:625 72:2855 74:2805 75:1505 76:606 77:2788 78:1898 79:1733 80:2203 81:2065 82:3219 83:1436 84:1917 85:3457 86:1111 87:2136 88:1310 89:4437 90:774 91:8415 92:2744 93:2955 94:4107 95:4429 96:1448 97:310 98:954 99:702 100:71 101:1455 102:3904 103:32777 104:5258 105:761 106:875 107:2654 108:1258 109:4189 110:2244 111:3517 112:2418 113:1861 114:1975 115:2186 116:2091 117:2682 118:2974 119:1914 120:2183 121:1326 122:2794 123:2235 124:1705 125:2922 126:91 128:1575 129:966 130:1292 131:2041 132:773 133:450 134:1588 135:355 136:1469 137:1128 138:2811 139:1597 140:1622 141:1530 142:1921 143:1949 144:1189 145:575 146:2171 147:2100 148:2703 149:2943 150:1288 151:2310 152:2094 153:528 154:7610 155:1866 156:3067 157:1944 158:1374 159:2523 160:3587 161:1898 162:3877 163:2249 164:1876 165:2457 166:1536 167:2028 168:3867 169:777 170:5184 171:995 172:4229 173:3399 174:910 175:1326 176:3733 177:4691 178:3969 179:2317 180:2712 181:4148 182:3590 183:2362 184:2059 185:21580 186:5209 187:4633 188:4276 189:4336 190:9517 191:1498 192:11302 193:9467 194:7782 195:5599 196:3256 197:3167 198:6090 199:8606 200:8065 201:6392 202:10372 203:10652 204:4583 205:3633 206:4506 207:3507 208:4274 209:5104 210:4652 211:2644 212:4548 213:3823 214:1026 215:50 216:6770 217:3269 218:1421 219:398 220:2151 221:1208 222:741 223:2788 End of report