IPv4 R&E Routing Table Report 23:05 GMT Fri 23 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: 981618 Prefixes after maximum aggregation (per Origin AS): 378730 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481414 Number of IPv4 prefixes with a valid ROA: 545688 Number of IPv4 prefixes with an invalid ROA: 732 Number of IPv4 prefixes with no ROA: 435198 Total ASes present in the Internet Routing Table: 76729 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65779 Origin ASes announcing only one prefix: 26902 Transit ASes present in the Internet Routing Table: 10950 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1027 Number of instances of unregistered ASNs: 1044 Number of 32-bit ASNs allocated by the RIRs: 46499 Number of 32-bit ASNs visible in the Routing Table: 38221 Prefixes from 32-bit ASNs in the Routing Table: 203648 Number of bogon 32-bit ASNs visible in the Routing Table: 44 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 454 Number of addresses announced to Internet: 3109800704 Equivalent to 185 /8s, 91 /16s and 203 /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: 320538 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258672 Total APNIC prefixes after maximum aggregation: 77182 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249737 Unique aggregates announced from the APNIC address blocks: 104235 APNIC Region origin ASes present in the Internet Routing Table: 14566 APNIC Prefixes per ASN: 17.15 APNIC Region origin ASes announcing only one prefix: 4401 APNIC Region transit ASes present in the Internet Routing Table: 1965 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10106 Number of APNIC addresses announced to Internet: 748731136 Equivalent to 44 /8s, 160 /16s and 187 /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: 289360 Total ARIN prefixes after maximum aggregation: 130809 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289810 Unique aggregates announced from the ARIN address blocks: 139393 ARIN Region origin ASes present in the Internet Routing Table: 19210 ARIN Prefixes per ASN: 15.09 ARIN Region origin ASes announcing only one prefix: 7049 ARIN Region transit ASes present in the Internet Routing Table: 1927 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5210 Number of ARIN addresses announced to Internet: 1352511744 Equivalent to 80 /8s, 157 /16s and 177 /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: 273082 Total RIPE prefixes after maximum aggregation: 133931 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271549 Unique aggregates announced from the RIPE address blocks: 174796 RIPE Region origin ASes present in the Internet Routing Table: 28903 RIPE Prefixes per ASN: 9.40 RIPE Region origin ASes announcing only one prefix: 12071 RIPE Region transit ASes present in the Internet Routing Table: 3956 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12439 Number of RIPE addresses announced to Internet: 731410432 Equivalent to 43 /8s, 152 /16s and 112 /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: 123935 Total LACNIC prefixes after maximum aggregation: 29499 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120337 Unique aggregates announced from the LACNIC address blocks: 48892 LACNIC Region origin ASes present in the Internet Routing Table: 11245 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2693 LACNIC Region transit ASes present in the Internet Routing Table: 2536 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 34 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9194 Number of LACNIC addresses announced to Internet: 171843072 Equivalent to 10 /8s, 62 /16s and 30 /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: 35542 Total AfriNIC prefixes after maximum aggregation: 6677 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 49731 Unique aggregates announced from the AfriNIC address blocks: 13690 AfriNIC Region origin ASes present in the Internet Routing Table: 1904 AfriNIC Prefixes per ASN: 26.12 AfriNIC Region origin ASes announcing only one prefix: 688 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1272 Number of AfriNIC addresses announced to Internet: 105096704 Equivalent to 6 /8s, 67 /16s and 166 /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 11086 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6176 844 648 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4425 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 534 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3903 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 434 192 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 13464 40825 5110 AMAZON-02, US 11492 4734 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3418 8746 882 COGENT-174, US 22773 3347 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3169 3852 418 GOOGLE-CLOUD-PLATFORM, US 16625 3023 1262 2228 AKAMAI-AS, US 36352 2831 231 860 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 7713 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3956 3395 123 AKAMAI-ASN1, NL 9009 3836 335 2053 M247, RO 12389 3072 2305 888 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2151 152 1582 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 62240 1422 94 737 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 12164 3253 580 UNINET, MX 10620 3500 480 1017 Telmex Colombia S.A., CO 13999 2511 540 365 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 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1112 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1039 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 1780 644 27 RAYA-AS, EG 24863 1652 389 17 LINKdotNET-AS, EG 29571 1608 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 1046 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 557 82 3 KENET-AS, KE 15399 545 57 60 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 13464 40825 5110 AMAZON-02, US 8151 12164 3253 580 UNINET, MX 9808 11086 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7713 1714 148 UNI2-AS, ES 7545 6176 844 648 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4734 314 586 CABLEONE, US 18403 4425 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 534 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 3956 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 12164 11584 UNINET, MX 9808 11086 10990 CHINAMOBILE-CN China Mobile Communications Grou 12479 7713 7565 UNI2-AS, ES 7545 6176 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4425 4400 FPT-AS-AP FPT Telecom Company, VN 11492 4734 4148 CABLEONE, US 9498 4361 4060 BBIL-AP BHARTI Airtel Ltd., IN 7552 3903 3877 VIETEL-AS-AP Viettel Group, VN 20940 3956 3833 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 23.143.96.0/24 Origin: 15830 EQUINIX, NL 23.143.96.0/24 Transit: 2914 NTT-DATA-2914, US 23.146.16.0/24 Origin: 396281 RESERVED, ZZ 23.146.16.0/24 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 /11:92 /12:299 /13:580 /14:1212 /15:2141 /16:13863 /17:8216 /18:13589 /19:24486 /20:43828 /21:51442 /22:111585 /23:101834 /24:608378 /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 7713 UNI2-AS, ES 8151 6359 12164 UNINET, MX 11492 3531 4734 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2499 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 13464 AMAZON-02, US 30036 2231 2572 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) ---------------------------------------------- 1:2378 2:1500 3:780 4:9 5:4706 6:163 7:6 8:1579 9:1 11:172 12:1362 13:433 14:2521 15:353 16:285 17:376 18:920 20:528 21:4 22:188 23:7516 24:2747 25:2 27:2761 29:19 31:3264 32:36 33:1 34:83 35:207 36:2970 37:4620 38:9149 39:909 40:169 41:4237 42:1966 43:2628 44:384 45:18649 46:5052 47:302 49:1938 50:1876 51:590 52:1562 54:317 55:1060 56:11 57:259 58:2243 59:1300 60:1168 61:2829 62:2916 63:1798 64:5448 65:2178 66:4608 67:3055 68:1126 69:3826 70:1082 71:625 72:2834 74:2762 75:1507 76:615 77:2703 78:1888 79:1510 80:2203 81:2079 82:3114 83:1435 84:1860 85:3418 86:1068 87:2128 88:1287 89:4394 90:775 91:8354 92:2703 93:2893 94:4057 95:4306 96:1418 97:312 98:978 99:686 100:71 101:1174 102:3879 103:32821 104:5045 105:767 106:1035 107:2649 108:1208 109:4000 110:2256 111:3336 112:2097 113:1817 114:1974 115:2162 116:2066 117:2529 118:2871 119:1970 120:1949 121:1377 122:2761 123:2176 124:1625 125:2887 126:90 128:1583 129:953 130:1297 131:1966 132:761 133:451 134:1531 135:333 136:1343 137:1117 138:2901 139:1595 140:1587 141:1503 142:1872 143:1766 144:1124 145:502 146:2179 147:2107 148:2702 149:2887 150:1231 151:1930 152:2083 153:498 154:8049 155:1977 156:3213 157:1916 158:1263 159:2444 160:3835 161:1816 162:3747 163:2159 164:1702 165:2205 166:1461 167:1888 168:4297 169:787 170:5089 171:1006 172:4366 173:3292 174:914 175:1305 176:3701 177:4754 178:3643 179:2321 180:2764 181:4065 182:3443 183:2149 184:2051 185:21549 186:5153 187:4501 188:4261 189:4323 190:9539 191:1505 192:11235 193:9454 194:7779 195:5526 196:3259 197:3684 198:6068 199:8506 200:8045 201:6352 202:10292 203:10604 204:4520 205:3600 206:4437 207:3455 208:4240 209:5130 210:4544 211:2546 212:4540 213:3717 214:1024 215:48 216:6718 217:3127 218:1345 219:396 220:2091 221:1094 222:721 223:2397 End of report