IPv4 R&E Routing Table Report 23:05 GMT Wed 14 May, 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: 979403 Prefixes after maximum aggregation (per Origin AS): 378421 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479478 Number of IPv4 prefixes with a valid ROA: 542356 Number of IPv4 prefixes with an invalid ROA: 722 Number of IPv4 prefixes with no ROA: 436325 Total ASes present in the Internet Routing Table: 76712 Prefixes per ASN: 12.77 Origin-only ASes present in the Internet Routing Table: 65804 Origin ASes announcing only one prefix: 26941 Transit ASes present in the Internet Routing Table: 10908 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1007 Number of instances of unregistered ASNs: 1012 Number of 32-bit ASNs allocated by the RIRs: 46395 Number of 32-bit ASNs visible in the Routing Table: 38187 Prefixes from 32-bit ASNs in the Routing Table: 201622 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 485 Number of addresses announced to Internet: 3109573120 Equivalent to 185 /8s, 88 /16s and 82 /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: 320372 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257597 Total APNIC prefixes after maximum aggregation: 77108 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248125 Unique aggregates announced from the APNIC address blocks: 103115 APNIC Region origin ASes present in the Internet Routing Table: 14562 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4437 APNIC Region transit ASes present in the Internet Routing Table: 1960 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10099 Number of APNIC addresses announced to Internet: 748616448 Equivalent to 44 /8s, 158 /16s and 251 /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: 288357 Total ARIN prefixes after maximum aggregation: 130388 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289590 Unique aggregates announced from the ARIN address blocks: 138748 ARIN Region origin ASes present in the Internet Routing Table: 19199 ARIN Prefixes per ASN: 15.08 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1916 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: 5197 Number of ARIN addresses announced to Internet: 1353032960 Equivalent to 80 /8s, 165 /16s and 165 /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: 273184 Total RIPE prefixes after maximum aggregation: 133931 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271241 Unique aggregates announced from the RIPE address blocks: 174442 RIPE Region origin ASes present in the Internet Routing Table: 28910 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12084 RIPE Region transit ASes present in the Internet Routing Table: 3979 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12433 Number of RIPE addresses announced to Internet: 730887424 Equivalent to 43 /8s, 144 /16s and 117 /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: 123571 Total LACNIC prefixes after maximum aggregation: 29590 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 119929 Unique aggregates announced from the LACNIC address blocks: 48876 LACNIC Region origin ASes present in the Internet Routing Table: 11232 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2690 LACNIC Region transit ASes present in the Internet Routing Table: 2492 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9181 Number of LACNIC addresses announced to Internet: 171717120 Equivalent to 10 /8s, 60 /16s and 50 /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: 35687 Total AfriNIC prefixes after maximum aggregation: 6767 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 50033 Unique aggregates announced from the AfriNIC address blocks: 13894 AfriNIC Region origin ASes present in the Internet Routing Table: 1907 AfriNIC Prefixes per ASN: 26.24 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 372 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277 Number of AfriNIC addresses announced to Internet: 105091840 Equivalent to 6 /8s, 67 /16s and 147 /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 10920 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6163 842 653 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4376 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4349 533 300 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 434 197 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 13384 40827 4960 AMAZON-02, US 11492 4727 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3500 8751 911 COGENT-174, US 22773 3348 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3166 3852 417 GOOGLE-CLOUD-PLATFORM, US 16625 3001 1255 2223 AKAMAI-AS, US 36352 2790 228 849 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 7689 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3781 325 1958 M247, RO 12389 3069 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2143 151 1577 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1537 1852 14 TE-AS TE-AS, EG 8551 1424 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 12089 3246 579 UNINET, MX 10620 3500 480 1019 Telmex Colombia S.A., CO 13999 2517 540 360 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1076 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1056 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 374 163 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 1778 632 28 RAYA-AS, EG 24863 1652 389 16 LINKdotNET-AS, EG 29571 1597 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1040 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 536 56 54 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 13384 40827 4960 AMAZON-02, US 8151 12089 3246 579 UNINET, MX 9808 10920 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7689 1714 148 UNI2-AS, ES 7545 6163 842 653 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4727 313 592 CABLEONE, US 18403 4376 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4349 533 300 BBIL-AP BHARTI Airtel Ltd., IN 20940 3932 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 12089 11510 UNINET, MX 9808 10920 10824 CHINAMOBILE-CN China Mobile Communications Grou 12479 7689 7541 UNI2-AS, ES 7545 6163 5510 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4376 4351 FPT-AS-AP FPT Telecom Company, VN 11492 4727 4135 CABLEONE, US 9498 4349 4049 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3932 3809 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 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 23.138.212.0/24 Origin: 400910 MOOSE, US 23.138.212.0/24 Transit: 20473 AS-VULTR, 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 CIBC-US, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /9:16 /10:41 /11:93 /12:300 /13:579 /14:1213 /15:2143 /16:13942 /17:8201 /18:13623 /19:24472 /20:43752 /21:51378 /22:111441 /23:101406 /24:606787 /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 6607 7689 UNI2-AS, ES 8151 6288 12089 UNINET, MX 11492 3533 4727 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2332 13384 AMAZON-02, US 30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 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) ---------------------------------------------- 1:2339 2:1497 3:729 4:11 5:4685 6:163 7:6 8:1585 9:1 11:172 12:1365 13:413 14:2518 15:353 16:284 17:372 18:917 20:518 21:4 22:188 23:7503 24:2744 25:2 27:2744 29:19 31:3255 32:37 33:1 34:83 35:204 36:2814 37:4637 38:9121 39:909 40:169 41:4215 42:1987 43:2574 44:381 45:18530 46:5039 47:301 49:1931 50:1886 51:587 52:1555 54:313 55:1094 56:11 57:255 58:2209 59:1284 60:1166 61:2814 62:2916 63:1810 64:5460 65:2176 66:4626 67:3057 68:1116 69:3832 70:1067 71:625 72:2824 74:2770 75:1607 76:614 77:2703 78:1873 79:1757 80:2198 81:2064 82:3128 83:1428 84:1855 85:3422 86:1068 87:2151 88:1286 89:4368 90:773 91:8336 92:2684 93:2887 94:4042 95:4290 96:1419 97:312 98:979 99:685 100:72 101:1388 102:3949 103:32178 104:5021 105:763 106:1034 107:2645 108:1216 109:4072 110:2239 111:3326 112:2069 113:1791 114:1972 115:2160 116:2045 117:2619 118:2878 119:1944 120:1920 121:1369 122:2747 123:2161 124:1613 125:2848 126:91 128:1578 129:953 130:1289 131:1956 132:775 133:451 134:1534 135:331 136:1344 137:1119 138:2884 139:1594 140:1584 141:1500 142:1898 143:1735 144:1112 145:504 146:2157 147:2102 148:2684 149:2856 150:1217 151:1893 152:2082 153:493 154:8063 155:1954 156:3325 157:1883 158:1307 159:2445 160:3838 161:1875 162:3722 163:2125 164:1700 165:2194 166:1479 167:1902 168:4297 169:786 170:5099 171:1007 172:4436 173:3272 174:910 175:1300 176:3682 177:4687 178:3620 179:2280 180:2613 181:4070 182:3428 183:2126 184:2054 185:21546 186:5106 187:4439 188:4238 189:4254 190:9546 191:1461 192:11210 193:9479 194:7767 195:5511 196:3288 197:3732 198:6055 199:8493 200:8075 201:6337 202:10228 203:10522 204:4531 205:3508 206:4450 207:3453 208:4253 209:5160 210:4530 211:2540 212:4519 213:3716 214:1033 215:48 216:6702 217:3131 218:1341 219:378 220:2087 221:1084 222:717 223:2383 End of report