IPv4 R&E Routing Table Report 23:05 GMT Sun 13 Apr, 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: 975543 Prefixes after maximum aggregation (per Origin AS): 375373 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 477062 Number of IPv4 prefixes with a valid ROA: 537865 Number of IPv4 prefixes with an invalid ROA: 682 Number of IPv4 prefixes with no ROA: 436996 Total ASes present in the Internet Routing Table: 76646 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65759 Origin ASes announcing only one prefix: 26894 Transit ASes present in the Internet Routing Table: 10887 Transit-only ASes present in the Internet Routing Table: 538 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: 1087 Number of instances of unregistered ASNs: 1093 Number of 32-bit ASNs allocated by the RIRs: 46183 Number of 32-bit ASNs visible in the Routing Table: 38062 Prefixes from 32-bit ASNs in the Routing Table: 200288 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: 454 Number of addresses announced to Internet: 3106492160 Equivalent to 185 /8s, 41 /16s and 79 /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: 320252 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255254 Total APNIC prefixes after maximum aggregation: 76498 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246983 Unique aggregates announced from the APNIC address blocks: 102725 APNIC Region origin ASes present in the Internet Routing Table: 14531 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4434 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: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10066 Number of APNIC addresses announced to Internet: 748411648 Equivalent to 44 /8s, 155 /16s and 219 /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: 288297 Total ARIN prefixes after maximum aggregation: 128949 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 289234 Unique aggregates announced from the ARIN address blocks: 137608 ARIN Region origin ASes present in the Internet Routing Table: 19198 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7031 ARIN Region transit ASes present in the Internet Routing Table: 1909 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: 5173 Number of ARIN addresses announced to Internet: 1349406464 Equivalent to 80 /8s, 110 /16s and 79 /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: 272595 Total RIPE prefixes after maximum aggregation: 133256 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270541 Unique aggregates announced from the RIPE address blocks: 173658 RIPE Region origin ASes present in the Internet Routing Table: 28875 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3970 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12372 Number of RIPE addresses announced to Internet: 731612928 Equivalent to 43 /8s, 155 /16s and 135 /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: 123044 Total LACNIC prefixes after maximum aggregation: 29275 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119719 Unique aggregates announced from the LACNIC address blocks: 48865 LACNIC Region origin ASes present in the Internet Routing Table: 11225 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2473 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: 9177 Number of LACNIC addresses announced to Internet: 171774720 Equivalent to 10 /8s, 61 /16s and 19 /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: 35266 Total AfriNIC prefixes after maximum aggregation: 6744 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 48612 Unique aggregates announced from the AfriNIC address blocks: 13818 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.48 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1274 Number of AfriNIC addresses announced to Internet: 105051904 Equivalent to 6 /8s, 66 /16s and 247 /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 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6213 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4254 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3672 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2854 849 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2175 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 13152 39688 4101 AMAZON-02, US 11492 4693 311 586 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3505 8765 950 COGENT-174, US 22773 3398 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2995 1256 2213 AKAMAI-AS, US 396982 2951 3649 468 GOOGLE-CLOUD-PLATFORM, US 36352 2649 218 805 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 7707 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3924 3395 125 AKAMAI-ASN1, NL 9009 3757 324 1953 M247, RO 12389 3068 2303 887 ROSTELECOM-AS, RU 34984 2362 360 580 TELLCOM-AS, TR 212238 2089 148 1539 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1592 1852 14 TE-AS TE-AS, EG 62240 1481 98 745 CLOUVIDER Clouvider - Global ASN, GB 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 11956 3245 585 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2513 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 22 Telefonica del Peru S.A.A., PE 11664 1182 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 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 1742 607 31 RAYA-AS, EG 24863 1646 389 16 LINKdotNET-AS, EG 29571 1580 102 22 ORANGE-COTE-IVOIRE, CI 36992 1430 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1037 523 45 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 560 1861 35 IAM-AS, MA 36914 538 82 3 KENET-AS, 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 13152 39688 4101 AMAZON-02, US 8151 11956 3245 585 UNINET, MX 9808 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7707 1714 145 UNI2-AS, ES 7545 6213 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4693 311 586 CABLEONE, US 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4254 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3924 1332 26 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 8151 11956 11371 UNINET, MX 9808 10306 10217 CHINAMOBILE-CN China Mobile Communications Grou 12479 7707 7562 UNI2-AS, ES 7545 6213 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4254 4229 FPT-AS-AP FPT Telecom Company, VN 11492 4693 4107 CABLEONE, US 9498 4266 3990 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3924 3799 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 /12:301 /13:581 /14:1215 /15:2139 /16:13893 /17:8225 /18:13641 /19:24388 /20:43602 /21:51564 /22:111778 /23:101118 /24:602932 /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 6629 7707 UNI2-AS, ES 8151 6157 11956 UNINET, MX 11492 3531 4693 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2534 3398 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2332 13152 AMAZON-02, US 30036 2213 2553 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3522 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 2:1517 3:614 4:10 5:4621 6:163 7:6 8:1545 9:1 11:172 12:1370 13:351 14:2510 15:351 16:280 17:364 18:921 20:483 21:4 22:188 23:7396 24:2844 25:2 27:2729 29:19 31:3229 32:37 34:83 35:203 36:2398 37:4657 38:8839 39:898 40:160 41:4193 42:1900 43:2561 44:370 45:18434 46:4964 47:287 49:1924 50:1899 51:590 52:1553 54:298 55:1089 56:11 57:248 58:2199 59:1257 60:1171 61:2817 62:2892 63:1825 64:5498 65:2174 66:4614 67:3066 68:1125 69:3978 70:1066 71:618 72:2830 74:2794 75:1604 76:613 77:2737 78:1869 79:1739 80:2193 81:2026 82:3115 83:1422 84:1843 85:3396 86:1042 87:2143 88:1282 89:4327 90:776 91:8314 92:2784 93:2894 94:4073 95:4339 96:1441 97:313 98:996 99:643 100:71 101:1401 102:3745 103:32155 104:4763 105:758 106:984 107:2613 108:1197 109:4095 110:2229 111:3361 112:2043 113:1801 114:1966 115:2169 116:2034 117:2733 118:2887 119:1941 120:1870 121:1364 122:2745 123:2159 124:1611 125:2856 126:91 128:1552 129:958 130:1257 131:1890 132:778 133:451 134:1522 135:329 136:1301 137:1103 138:2870 139:1603 140:1572 141:1478 142:1903 143:1635 144:1074 145:515 146:2154 147:2108 148:2652 149:2910 150:1246 151:1742 152:2097 153:503 154:8010 155:1635 156:3197 157:1885 158:1275 159:2438 160:3563 161:1895 162:3720 163:2019 164:1695 165:2202 166:1452 167:1877 168:4045 169:785 170:5080 171:1003 172:4456 173:3228 174:909 175:1278 176:3683 177:4658 178:3784 179:2286 180:2581 181:4057 182:3366 183:2053 184:2135 185:21490 186:5059 187:4399 188:4187 189:4160 190:9613 191:1464 192:11188 193:9413 194:7771 195:5505 196:3268 197:3695 198:6027 199:8448 200:8055 201:6272 202:10324 203:10520 204:4517 205:3631 206:4579 207:3439 208:4195 209:5142 210:4506 211:2528 212:4527 213:3761 214:1031 215:48 216:6610 217:3095 218:1331 219:377 220:2087 221:1068 222:716 223:2318 End of report