IPv4 R&E Routing Table Report 23:05 GMT Fri 28 Mar, 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: 975639 Prefixes after maximum aggregation (per Origin AS): 374257 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476567 Number of IPv4 prefixes with a valid ROA: 536753 Number of IPv4 prefixes with an invalid ROA: 693 Number of IPv4 prefixes with no ROA: 438193 Total ASes present in the Internet Routing Table: 76592 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65730 Origin ASes announcing only one prefix: 26879 Transit ASes present in the Internet Routing Table: 10862 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1027 Number of instances of unregistered ASNs: 1031 Number of 32-bit ASNs allocated by the RIRs: 46107 Number of 32-bit ASNs visible in the Routing Table: 37974 Prefixes from 32-bit ASNs in the Routing Table: 199805 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3107584000 Equivalent to 185 /8s, 57 /16s and 248 /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: 320560 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255045 Total APNIC prefixes after maximum aggregation: 76281 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246826 Unique aggregates announced from the APNIC address blocks: 102639 APNIC Region origin ASes present in the Internet Routing Table: 14500 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4424 APNIC Region transit ASes present in the Internet Routing Table: 1946 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10035 Number of APNIC addresses announced to Internet: 748670464 Equivalent to 44 /8s, 159 /16s and 206 /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: 288524 Total ARIN prefixes after maximum aggregation: 128494 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 289102 Unique aggregates announced from the ARIN address blocks: 137233 ARIN Region origin ASes present in the Internet Routing Table: 19202 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7035 ARIN Region transit ASes present in the Internet Routing Table: 1905 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5162 Number of ARIN addresses announced to Internet: 1349830912 Equivalent to 80 /8s, 116 /16s and 201 /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: 272365 Total RIPE prefixes after maximum aggregation: 132903 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270734 Unique aggregates announced from the RIPE address blocks: 173836 RIPE Region origin ASes present in the Internet Routing Table: 28865 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 3976 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12340 Number of RIPE addresses announced to Internet: 732221184 Equivalent to 43 /8s, 164 /16s and 207 /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: 123463 Total LACNIC prefixes after maximum aggregation: 29225 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120133 Unique aggregates announced from the LACNIC address blocks: 48803 LACNIC Region origin ASes present in the Internet Routing Table: 11211 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2465 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9163 Number of LACNIC addresses announced to Internet: 171688448 Equivalent to 10 /8s, 59 /16s and 194 /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: 35215 Total AfriNIC prefixes after maximum aggregation: 6723 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48380 Unique aggregates announced from the AfriNIC address blocks: 13658 AfriNIC Region origin ASes present in the Internet Routing Table: 1911 AfriNIC Prefixes per ASN: 25.32 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 104937984 Equivalent to 6 /8s, 65 /16s and 58 /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 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4247 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3267 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2845 849 535 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 12951 39643 3966 AMAZON-02, US 11492 4676 310 586 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3634 8766 961 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3381 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2985 1251 2198 AKAMAI-AS, US 396982 2945 3649 459 GOOGLE-CLOUD-PLATFORM, US 36352 2582 213 794 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 7722 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 125 AKAMAI-ASN1, NL 9009 3771 325 1961 M247, RO 12389 3035 2303 888 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2071 147 1528 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1491 98 749 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 11898 3243 582 UNINET, MX 10620 3522 486 971 Telmex Colombia S.A., CO 13999 2509 539 367 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1330 782 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1163 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1049 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 1703 599 30 RAYA-AS, EG 24863 1620 389 18 LINKdotNET-AS, EG 29571 1567 102 23 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 903 1083 15 MOBINIL, EG 6713 560 1861 35 IAM-AS, MA 36914 540 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 12951 39643 3966 AMAZON-02, US 8151 11898 3243 582 UNINET, MX 9808 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7722 1714 145 UNI2-AS, ES 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4676 310 586 CABLEONE, US 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4247 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4173 286 83 VIASAT-SP-BACKBONE, US 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 11898 11316 UNINET, MX 9808 10308 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7722 7577 UNI2-AS, ES 7545 6220 5563 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4247 4222 FPT-AS-AP FPT Telecom Company, VN 11492 4676 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4247 3971 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 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 23.136.140.0/24 Origin: 11832 BANDB-ROUTING, ZZ 23.136.140.0/24 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 23.152.48.0/24 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 /12:302 /13:581 /14:1217 /15:2143 /16:13926 /17:8244 /18:13663 /19:24491 /20:43577 /21:51583 /22:111722 /23:100952 /24:603072 /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 6654 7722 UNI2-AS, ES 8151 6098 11898 UNINET, MX 11492 3529 4676 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2516 3381 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2332 12951 AMAZON-02, US 30036 2219 2560 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 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) ---------------------------------------------- 1:2340 2:1509 3:601 4:10 5:4577 6:163 7:6 8:1552 9:1 11:172 12:1372 13:350 14:2515 15:351 16:279 17:361 18:914 20:446 21:4 22:188 23:7305 24:3020 25:2 27:2718 29:19 31:3224 32:37 34:83 35:204 36:2395 37:4731 38:8888 39:899 40:154 41:4218 42:1913 43:2554 44:358 45:18457 46:4926 47:288 49:1983 50:1898 51:590 52:1555 54:301 55:1089 56:11 57:249 58:2190 59:1241 60:1171 61:2814 62:2916 63:1826 64:5488 65:2177 66:4551 67:3011 68:1120 69:3969 70:1112 71:610 72:2842 74:2798 75:1660 76:612 77:2709 78:1857 79:1720 80:2192 81:2017 82:2987 83:1411 84:1813 85:3373 86:1044 87:2149 88:1278 89:4330 90:778 91:8308 92:2797 93:2876 94:4070 95:4278 96:1422 97:313 98:992 99:740 100:71 101:1399 102:3715 103:32159 104:4804 105:749 106:993 107:2591 108:1201 109:4049 110:2229 111:3330 112:2038 113:1799 114:1956 115:2107 116:2031 117:2733 118:2849 119:1938 120:1870 121:1358 122:2730 123:2165 124:1609 125:2851 126:88 128:1545 129:949 130:1266 131:1903 132:772 133:451 134:1527 135:329 136:1280 137:1104 138:2880 139:1613 140:1560 141:1489 142:1824 143:1658 144:1060 145:515 146:2146 147:2097 148:2634 149:2890 150:1249 151:2041 152:2098 153:504 154:7896 155:1615 156:3262 157:1901 158:1267 159:2425 160:3544 161:1928 162:3705 163:1946 164:1693 165:2202 166:1421 167:1885 168:4040 169:793 170:5086 171:1002 172:4453 173:3229 174:909 175:1282 176:3686 177:4784 178:3815 179:2320 180:2572 181:4055 182:3372 183:2035 184:2291 185:21475 186:5113 187:4391 188:4200 189:4187 190:9623 191:1528 192:11149 193:9406 194:7779 195:5518 196:3288 197:3780 198:6057 199:8422 200:8054 201:6294 202:10321 203:10506 204:4521 205:3626 206:4570 207:3436 208:4182 209:5189 210:4498 211:2522 212:4489 213:3747 214:1045 215:48 216:6577 217:3085 218:1327 219:377 220:2085 221:1070 222:718 223:2317 End of report