IPv4 R&E Routing Table Report 23:05 GMT Mon 12 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: 978177 Prefixes after maximum aggregation (per Origin AS): 377937 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479205 Number of IPv4 prefixes with a valid ROA: 541787 Number of IPv4 prefixes with an invalid ROA: 1214 Number of IPv4 prefixes with no ROA: 435176 Total ASes present in the Internet Routing Table: 76715 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65798 Origin ASes announcing only one prefix: 26958 Transit ASes present in the Internet Routing Table: 10917 Transit-only ASes present in the Internet Routing Table: 537 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: 984 Number of instances of unregistered ASNs: 989 Number of 32-bit ASNs allocated by the RIRs: 46405 Number of 32-bit ASNs visible in the Routing Table: 38175 Prefixes from 32-bit ASNs in the Routing Table: 201645 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: 469 Number of addresses announced to Internet: 3109145088 Equivalent to 185 /8s, 81 /16s and 202 /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: 320222 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257027 Total APNIC prefixes after maximum aggregation: 77055 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248186 Unique aggregates announced from the APNIC address blocks: 103105 APNIC Region origin ASes present in the Internet Routing Table: 14578 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4451 APNIC Region transit ASes present in the Internet Routing Table: 1965 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: 10110 Number of APNIC addresses announced to Internet: 748486144 Equivalent to 44 /8s, 156 /16s and 254 /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: 288110 Total ARIN prefixes after maximum aggregation: 130179 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289372 Unique aggregates announced from the ARIN address blocks: 138690 ARIN Region origin ASes present in the Internet Routing Table: 19201 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1920 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: 5187 Number of ARIN addresses announced to Internet: 1352849152 Equivalent to 80 /8s, 162 /16s and 215 /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: 273148 Total RIPE prefixes after maximum aggregation: 133861 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271026 Unique aggregates announced from the RIPE address blocks: 174278 RIPE Region origin ASes present in the Internet Routing Table: 28911 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12080 RIPE Region transit ASes present in the Internet Routing Table: 3978 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: 12426 Number of RIPE addresses announced to Internet: 730885120 Equivalent to 43 /8s, 144 /16s and 108 /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: 123446 Total LACNIC prefixes after maximum aggregation: 29463 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119845 Unique aggregates announced from the LACNIC address blocks: 48848 LACNIC Region origin ASes present in the Internet Routing Table: 11223 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2691 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: 9175 Number of LACNIC addresses announced to Internet: 171675648 Equivalent to 10 /8s, 59 /16s and 144 /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: 35462 Total AfriNIC prefixes after maximum aggregation: 6759 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 49279 Unique aggregates announced from the AfriNIC address blocks: 13894 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.83 AfriNIC Region origin ASes announcing only one prefix: 697 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1277 Number of AfriNIC addresses announced to Internet: 105021184 Equivalent to 6 /8s, 66 /16s and 127 /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 10799 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6164 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4371 534 303 BBIL-AP BHARTI Airtel Ltd., IN 18403 4354 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3710 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2869 852 536 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 13348 40832 4900 AMAZON-02, US 11492 4727 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3617 1320 81 SHAW, CA 174 3476 8749 893 COGENT-174, US 22773 3348 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3164 3852 416 GOOGLE-CLOUD-PLATFORM, US 16625 3023 1265 2222 AKAMAI-AS, US 36352 2794 228 853 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 7695 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3951 3395 123 AKAMAI-ASN1, NL 9009 3799 328 1973 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2367 360 582 TELLCOM-AS, TR 212238 2141 151 1575 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1599 1852 14 TE-AS TE-AS, EG 8551 1428 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 12033 3235 583 UNINET, MX 10620 3500 480 1019 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1337 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1206 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1191 371 22 Telefonica del Peru S.A.A., PE 22884 1054 67 376 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1595 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1035 523 45 Vodafone-, EG 37069 999 1100 18 MOBINIL, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 550 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 13348 40832 4900 AMAZON-02, US 8151 12033 3235 583 UNINET, MX 9808 10799 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7695 1714 148 UNI2-AS, ES 7545 6164 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4727 313 592 CABLEONE, US 9498 4371 534 303 BBIL-AP BHARTI Airtel Ltd., IN 18403 4354 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3951 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 12033 11450 UNINET, MX 9808 10799 10703 CHINAMOBILE-CN China Mobile Communications Grou 12479 7695 7547 UNI2-AS, ES 7545 6164 5510 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4354 4329 FPT-AS-AP FPT Telecom Company, VN 11492 4727 4135 CABLEONE, US 9498 4371 4068 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3951 3828 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 211747 UNALLOCATED 5.231.225.0/24 204044 ONLYSERVERS Dedicated S 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 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 23.138.204.0/24 Origin: 203062 ALEXANDRE-ROUX-ASRINFOPRO Alexandre Roux 23.138.204.0/24 Transit: 35661 VIRTUASYS-EU Lift weight. Push bytes. Ne 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /9:16 /10:41 /11:93 /12:300 /13:579 /14:1213 /15:2142 /16:13941 /17:8202 /18:13617 /19:24466 /20:43597 /21:51345 /22:111517 /23:101312 /24:605780 /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 7695 UNI2-AS, ES 8151 6249 12033 UNINET, MX 11492 3533 4727 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3412 3617 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2323 13348 AMAZON-02, US 30036 2220 2560 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) ---------------------------------------------- 1:2324 2:1502 3:716 4:11 5:4672 6:163 7:6 8:1586 9:1 11:172 12:1364 13:394 14:2517 15:353 16:285 17:372 18:920 20:518 21:4 22:188 23:7495 24:2742 25:2 27:2742 29:19 31:3243 32:37 33:1 34:83 35:205 36:2760 37:4634 38:9129 39:909 40:172 41:4210 42:1974 43:2573 44:378 45:18524 46:5036 47:294 49:1934 50:1890 51:591 52:1555 54:307 55:1090 56:11 57:255 58:2207 59:1304 60:1166 61:2814 62:2913 63:1809 64:5460 65:2174 66:4631 67:3058 68:1122 69:3829 70:1085 71:630 72:2845 74:2769 75:1607 76:615 77:2698 78:1873 79:1752 80:2211 81:2042 82:3123 83:1429 84:1846 85:3420 86:1051 87:2148 88:1281 89:4352 90:774 91:8342 92:2682 93:2887 94:4043 95:4292 96:1418 97:312 98:980 99:676 100:72 101:1408 102:3934 103:32250 104:5003 105:757 106:1035 107:2638 108:1218 109:4078 110:2237 111:3308 112:2058 113:1789 114:1972 115:2170 116:2047 117:2617 118:2893 119:1946 120:1890 121:1371 122:2747 123:2154 124:1611 125:2865 126:91 128:1566 129:949 130:1287 131:1952 132:774 133:451 134:1528 135:331 136:1311 137:1116 138:2876 139:1615 140:1583 141:1499 142:1898 143:1727 144:1107 145:504 146:2155 147:2095 148:2626 149:2852 150:1217 151:1864 152:2080 153:496 154:8114 155:1695 156:3452 157:1898 158:1302 159:2438 160:3576 161:1877 162:3723 163:2131 164:1696 165:2198 166:1474 167:1899 168:4027 169:782 170:5087 171:1007 172:4407 173:3265 174:909 175:1298 176:3679 177:4699 178:3610 179:2267 180:2615 181:4064 182:3424 183:2085 184:2055 185:21549 186:5098 187:4417 188:4236 189:4237 190:9615 191:1475 192:11209 193:9480 194:7759 195:5508 196:3285 197:3713 198:6067 199:8488 200:8077 201:6328 202:10243 203:10534 204:4528 205:3493 206:4453 207:3450 208:4250 209:5172 210:4582 211:2541 212:4516 213:3700 214:1030 215:48 216:6705 217:3125 218:1341 219:378 220:2087 221:1079 222:717 223:2363 End of report