IPv4 R&E Routing Table Report 23:05 GMT Tue 06 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: 976696 Prefixes after maximum aggregation (per Origin AS): 377098 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478679 Number of IPv4 prefixes with a valid ROA: 539462 Number of IPv4 prefixes with an invalid ROA: 881 Number of IPv4 prefixes with no ROA: 436353 Total ASes present in the Internet Routing Table: 76683 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65766 Origin ASes announcing only one prefix: 26940 Transit ASes present in the Internet Routing Table: 10917 Transit-only ASes present in the Internet Routing Table: 544 Paths with bogon ASNs present in the IPv4 Routing Table: 21 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: 987 Number of instances of unregistered ASNs: 989 Number of 32-bit ASNs allocated by the RIRs: 46340 Number of 32-bit ASNs visible in the Routing Table: 38136 Prefixes from 32-bit ASNs in the Routing Table: 201094 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 468 Number of addresses announced to Internet: 3109709056 Equivalent to 185 /8s, 90 /16s and 101 /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: 319940 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256147 Total APNIC prefixes after maximum aggregation: 76843 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247362 Unique aggregates announced from the APNIC address blocks: 102937 APNIC Region origin ASes present in the Internet Routing Table: 14555 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1970 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 45 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10089 Number of APNIC addresses announced to Internet: 748358144 Equivalent to 44 /8s, 155 /16s and 10 /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: 287684 Total ARIN prefixes after maximum aggregation: 129771 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 288992 Unique aggregates announced from the ARIN address blocks: 138498 ARIN Region origin ASes present in the Internet Routing Table: 19206 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7048 ARIN Region transit ASes present in the Internet Routing Table: 1921 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5190 Number of ARIN addresses announced to Internet: 1352978176 Equivalent to 80 /8s, 164 /16s and 207 /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: 273270 Total RIPE prefixes after maximum aggregation: 133718 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271062 Unique aggregates announced from the RIPE address blocks: 174097 RIPE Region origin ASes present in the Internet Routing Table: 28891 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3968 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: 12410 Number of RIPE addresses announced to Internet: 731384320 Equivalent to 43 /8s, 152 /16s and 10 /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: 123268 Total LACNIC prefixes after maximum aggregation: 29395 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119651 Unique aggregates announced from the LACNIC address blocks: 48793 LACNIC Region origin ASes present in the Internet Routing Table: 11223 LACNIC Prefixes per ASN: 10.66 LACNIC Region origin ASes announcing only one prefix: 2699 LACNIC Region transit ASes present in the Internet Routing Table: 2491 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: 9176 Number of LACNIC addresses announced to Internet: 171740160 Equivalent to 10 /8s, 60 /16s and 140 /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: 35340 Total AfriNIC prefixes after maximum aggregation: 6752 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 49161 Unique aggregates announced from the AfriNIC address blocks: 13965 AfriNIC Region origin ASes present in the Internet Routing Table: 1904 AfriNIC Prefixes per ASN: 25.82 AfriNIC Region origin ASes announcing only one prefix: 689 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: 1271 Number of AfriNIC addresses announced to Internet: 105024256 Equivalent to 6 /8s, 66 /16s and 139 /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 10544 8754 88 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4311 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4309 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2863 852 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2187 11523 647 KIXS-AS-KR Korea Telecom, KR 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 13305 40824 4502 AMAZON-02, US 11492 4711 312 591 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3600 8750 898 COGENT-174, US 22773 3357 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 16625 3019 1264 2222 AKAMAI-AS, US 396982 2955 3657 469 GOOGLE-CLOUD-PLATFORM, US 36352 2779 228 855 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 7714 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3957 3395 123 AKAMAI-ASN1, NL 9009 3798 327 1978 M247, RO 12389 3070 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2132 150 1573 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1601 1852 14 TE-AS TE-AS, EG 8551 1423 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 12048 3249 586 UNINET, MX 10620 3523 486 995 Telmex Colombia S.A., CO 13999 2514 540 362 Mega Cable, S.A. de C.V., MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 28573 1359 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1196 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1191 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 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 1600 103 23 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1036 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 552 82 3 KENET-AS, KE 15399 525 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 13305 40824 4502 AMAZON-02, US 8151 12048 3249 586 UNINET, MX 9808 10544 8754 88 CHINAMOBILE-CN China Mobile Communication 12479 7714 1714 148 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4711 312 591 CABLEONE, US 9498 4311 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4309 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3957 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 12048 11462 UNINET, MX 9808 10544 10456 CHINAMOBILE-CN China Mobile Communications Grou 12479 7714 7566 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4309 4284 FPT-AS-AP FPT Telecom Company, VN 11492 4711 4120 CABLEONE, US 9498 4311 4034 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3957 3834 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 23.140.216.0/24 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 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 /9:16 /10:41 /11:93 /12:300 /13:580 /14:1213 /15:2142 /16:13951 /17:8211 /18:13629 /19:24454 /20:43510 /21:51375 /22:111479 /23:101112 /24:604574 /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 6635 7714 UNI2-AS, ES 8151 6248 12048 UNINET, MX 11492 3531 4711 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3357 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 13305 AMAZON-02, US 30036 2215 2555 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2189 3523 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 2:1503 3:682 4:10 5:4679 6:162 7:6 8:1586 9:1 11:172 12:1367 13:366 14:2516 15:353 16:283 17:368 18:920 20:517 21:4 22:188 23:7480 24:2744 25:2 27:2733 29:19 31:3239 32:37 33:1 34:83 35:203 36:2571 37:4691 38:9090 39:907 40:167 41:4171 42:1948 43:2561 44:372 45:18515 46:5042 47:294 49:1933 50:1886 51:590 52:1553 54:304 55:1094 56:11 57:253 58:2199 59:1283 60:1170 61:2811 62:2908 63:1807 64:5446 65:2169 66:4606 67:3053 68:1118 69:3809 70:1089 71:623 72:2845 74:2763 75:1607 76:614 77:2724 78:1872 79:1753 80:2198 81:2047 82:3200 83:1430 84:1843 85:3432 86:1051 87:2147 88:1282 89:4344 90:781 91:8333 92:2717 93:2892 94:4098 95:4327 96:1414 97:312 98:983 99:671 100:72 101:1392 102:3924 103:32140 104:4811 105:755 106:1033 107:2627 108:1210 109:4071 110:2235 111:3345 112:2054 113:1791 114:1969 115:2169 116:2041 117:2609 118:2885 119:1945 120:1878 121:1369 122:2747 123:2162 124:1614 125:2850 126:91 128:1557 129:950 130:1282 131:1924 132:764 133:451 134:1529 135:331 136:1298 137:1110 138:2878 139:1625 140:1575 141:1498 142:1902 143:1687 144:1097 145:502 146:2149 147:2098 148:2685 149:2845 150:1254 151:1828 152:2092 153:497 154:8221 155:1669 156:3374 157:1889 158:1299 159:2434 160:3576 161:1876 162:3705 163:2100 164:1702 165:2195 166:1467 167:1885 168:4034 169:783 170:5055 171:1007 172:4394 173:3256 174:906 175:1296 176:3663 177:4628 178:3628 179:2277 180:2595 181:4055 182:3387 183:2062 184:2049 185:21513 186:5087 187:4427 188:4219 189:4229 190:9518 191:1469 192:11204 193:9463 194:7761 195:5507 196:3276 197:3691 198:6076 199:8472 200:8033 201:6285 202:10221 203:10539 204:4507 205:3592 206:4578 207:3445 208:4238 209:5159 210:4526 211:2534 212:4519 213:3695 214:1027 215:48 216:6686 217:3118 218:1336 219:378 220:2089 221:1085 222:721 223:2352 End of report