IPv4 R&E Routing Table Report 23:05 GMT Sat 14 Jun, 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: 983643 Prefixes after maximum aggregation (per Origin AS): 380289 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482338 Number of IPv4 prefixes with a valid ROA: 548016 Number of IPv4 prefixes with an invalid ROA: 1506 Number of IPv4 prefixes with no ROA: 434121 Total ASes present in the Internet Routing Table: 76814 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65826 Origin ASes announcing only one prefix: 26844 Transit ASes present in the Internet Routing Table: 10988 Transit-only ASes present in the Internet Routing Table: 551 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1183 Number of instances of unregistered ASNs: 1224 Number of 32-bit ASNs allocated by the RIRs: 46645 Number of 32-bit ASNs visible in the Routing Table: 38326 Prefixes from 32-bit ASNs in the Routing Table: 204204 Number of bogon 32-bit ASNs visible in the Routing Table: 108 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 434 Number of addresses announced to Internet: 3109576448 Equivalent to 185 /8s, 88 /16s and 95 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 321736 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258907 Total APNIC prefixes after maximum aggregation: 77209 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250356 Unique aggregates announced from the APNIC address blocks: 104221 APNIC Region origin ASes present in the Internet Routing Table: 14578 APNIC Prefixes per ASN: 17.17 APNIC Region origin ASes announcing only one prefix: 4418 APNIC Region transit ASes present in the Internet Routing Table: 1969 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10124 Number of APNIC addresses announced to Internet: 748761600 Equivalent to 44 /8s, 161 /16s and 50 /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: 289139 Total ARIN prefixes after maximum aggregation: 131204 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290947 Unique aggregates announced from the ARIN address blocks: 139526 ARIN Region origin ASes present in the Internet Routing Table: 19201 ARIN Prefixes per ASN: 15.15 ARIN Region origin ASes announcing only one prefix: 7025 ARIN Region transit ASes present in the Internet Routing Table: 1928 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: 5220 Number of ARIN addresses announced to Internet: 1352599296 Equivalent to 80 /8s, 159 /16s and 7 /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: 274785 Total RIPE prefixes after maximum aggregation: 134759 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273489 Unique aggregates announced from the RIPE address blocks: 175762 RIPE Region origin ASes present in the Internet Routing Table: 28936 RIPE Prefixes per ASN: 9.45 RIPE Region origin ASes announcing only one prefix: 12061 RIPE Region transit ASes present in the Internet Routing Table: 4004 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12489 Number of RIPE addresses announced to Internet: 731260416 Equivalent to 43 /8s, 150 /16s and 38 /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: 124034 Total LACNIC prefixes after maximum aggregation: 29625 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120352 Unique aggregates announced from the LACNIC address blocks: 48899 LACNIC Region origin ASes present in the Internet Routing Table: 11255 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2647 LACNIC Region transit ASes present in the Internet Routing Table: 2517 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9209 Number of LACNIC addresses announced to Internet: 171819776 Equivalent to 10 /8s, 61 /16s and 195 /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: 35595 Total AfriNIC prefixes after maximum aggregation: 6724 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48065 Unique aggregates announced from the AfriNIC address blocks: 13541 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 25.03 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1284 Number of AfriNIC addresses announced to Internet: 104931840 Equivalent to 6 /8s, 65 /16s and 34 /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 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6171 847 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4431 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4411 534 306 BBIL-AP BHARTI Airtel Ltd., IN 7552 3917 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3712 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2890 856 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2181 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13667 40939 5239 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3862 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 174 3579 8745 879 COGENT-174, US 22773 3347 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 396982 3187 3854 427 GOOGLE-CLOUD-PLATFORM, US 16625 2998 1250 2217 AKAMAI-AS, US 36352 2816 230 856 AS-COLOCROSSING, 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 7696 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3946 3395 123 AKAMAI-ASN1, NL 9009 3883 353 2084 M247, RO 12389 3105 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 578 TELLCOM-AS, TR 212238 2241 164 1632 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1571 1852 14 TE-AS TE-AS, EG 8551 1415 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12195 3254 578 UNINET, MX 10620 3502 481 1019 Telmex Colombia S.A., CO 13999 2492 541 357 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1204 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1200 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1035 2503 52 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 1820 644 27 RAYA-AS, EG 24863 1633 389 16 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1066 523 47 Vodafone-, EG 20011 981 185 286 INTERNET-SOLUTIONS, ZA 36914 556 82 3 KENET-AS, KE 15399 543 57 57 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 13667 40939 5239 AMAZON-02, US 8151 12195 3254 578 UNINET, MX 9808 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7696 1713 148 UNI2-AS, ES 7545 6171 847 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4431 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4411 534 306 BBIL-AP BHARTI Airtel Ltd., IN 20940 3946 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12195 11617 UNINET, MX 9808 11080 10980 CHINAMOBILE-CN China Mobile Communications Grou 12479 7696 7548 UNI2-AS, ES 7545 6171 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4431 4405 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4411 4105 BBIL-AP BHARTI Airtel Ltd., IN 7552 3917 3891 VIETEL-AS-AP Viettel Group, VN 20940 3946 3823 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 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: 3491 CONSOLE-CONNECT-ASN, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:300 /13:581 /14:1210 /15:2137 /16:13867 /17:8194 /18:13601 /19:24435 /20:43828 /21:51480 /22:111762 /23:102252 /24:609833 /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 12479 6616 7696 UNI2-AS, ES 8151 6413 12195 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2821 3862 VIASAT-SP-BACKBONE, US 22773 2496 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2371 13667 AMAZON-02, US 30036 2247 2588 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2189 3502 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) ---------------------------------------------- 1:2371 2:1485 3:817 4:10 5:4767 6:162 7:6 8:1572 9:1 11:172 12:1346 13:454 14:2519 15:360 16:285 17:376 18:921 20:545 21:4 22:188 23:7578 24:2818 25:2 27:2762 29:19 31:3301 32:36 33:1 34:83 35:254 36:3098 37:4574 38:9391 39:906 40:166 41:4198 42:1966 43:2646 44:379 45:18653 46:5111 47:322 49:1942 50:1889 51:592 52:1568 54:328 55:1090 56:11 57:265 58:2211 59:1285 60:1171 61:2835 62:2936 63:1793 64:5449 65:2175 66:4626 67:3055 68:1123 69:3847 70:1071 71:632 72:2823 74:2782 75:1501 76:620 77:2719 78:1879 79:1719 80:2216 81:2053 82:3155 83:1447 84:1865 85:3456 86:1083 87:2142 88:1295 89:4416 90:770 91:8398 92:2726 93:2913 94:4006 95:4339 96:1423 97:311 98:981 99:696 100:73 101:1425 102:3846 103:32721 104:5141 105:768 106:1035 107:2667 108:1240 109:4089 110:2238 111:3274 112:2124 113:1810 114:1991 115:2118 116:2080 117:2532 118:2882 119:1924 120:2002 121:1373 122:2773 123:2179 124:1631 125:2904 126:91 128:1581 129:947 130:1288 131:2018 132:772 133:449 134:1520 135:346 136:1349 137:1115 138:2835 139:1590 140:1605 141:1514 142:1899 143:1831 144:1181 145:543 146:2176 147:2104 148:2709 149:2891 150:1270 151:1975 152:2088 153:511 154:7346 155:1744 156:3002 157:1917 158:1330 159:2488 160:3609 161:1853 162:3847 163:2203 164:1856 165:1983 166:1490 167:1960 168:4012 169:791 170:5120 171:1020 172:4466 173:3326 174:920 175:1307 176:3710 177:4690 178:3728 179:2314 180:2751 181:4066 182:3442 183:2176 184:2064 185:21565 186:5188 187:4497 188:4269 189:4272 190:9622 191:1490 192:11285 193:9480 194:7820 195:5546 196:3280 197:3667 198:6072 199:8527 200:8094 201:6369 202:10277 203:10649 204:4545 205:3604 206:4446 207:3504 208:4253 209:5122 210:4561 211:2535 212:4570 213:3746 214:1028 215:48 216:6751 217:3163 218:1353 219:393 220:2086 221:1137 222:724 223:2473 End of report