IPv4 R&E Routing Table Report 23:05 GMT Sat 28 Jun, 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: 985832 Prefixes after maximum aggregation (per Origin AS): 381417 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 484244 Number of IPv4 prefixes with a valid ROA: 551167 Number of IPv4 prefixes with an invalid ROA: 958 Number of IPv4 prefixes with no ROA: 433707 Total ASes present in the Internet Routing Table: 76823 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65857 Origin ASes announcing only one prefix: 26866 Transit ASes present in the Internet Routing Table: 10966 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 36 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1142 Number of instances of unregistered ASNs: 1181 Number of 32-bit ASNs allocated by the RIRs: 46681 Number of 32-bit ASNs visible in the Routing Table: 38407 Prefixes from 32-bit ASNs in the Routing Table: 205424 Number of bogon 32-bit ASNs visible in the Routing Table: 100 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 441 Number of addresses announced to Internet: 3105621760 Equivalent to 185 /8s, 28 /16s and 7 /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: 321640 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261145 Total APNIC prefixes after maximum aggregation: 77655 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251854 Unique aggregates announced from the APNIC address blocks: 104461 APNIC Region origin ASes present in the Internet Routing Table: 14625 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4425 APNIC Region transit ASes present in the Internet Routing Table: 1963 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10173 Number of APNIC addresses announced to Internet: 748758016 Equivalent to 44 /8s, 161 /16s and 36 /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: 288861 Total ARIN prefixes after maximum aggregation: 131210 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290354 Unique aggregates announced from the ARIN address blocks: 139841 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 1928 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: 5227 Number of ARIN addresses announced to Internet: 1349268224 Equivalent to 80 /8s, 108 /16s and 51 /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: 275520 Total RIPE prefixes after maximum aggregation: 135437 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274277 Unique aggregates announced from the RIPE address blocks: 176649 RIPE Region origin ASes present in the Internet Routing Table: 28924 RIPE Prefixes per ASN: 9.48 RIPE Region origin ASes announcing only one prefix: 12060 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12509 Number of RIPE addresses announced to Internet: 731122688 Equivalent to 43 /8s, 148 /16s and 12 /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: 123900 Total LACNIC prefixes after maximum aggregation: 29726 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120380 Unique aggregates announced from the LACNIC address blocks: 48973 LACNIC Region origin ASes present in the Internet Routing Table: 11274 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2504 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9220 Number of LACNIC addresses announced to Internet: 171148544 Equivalent to 10 /8s, 51 /16s and 133 /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: 35264 Total AfriNIC prefixes after maximum aggregation: 6637 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48526 Unique aggregates announced from the AfriNIC address blocks: 13923 AfriNIC Region origin ASes present in the Internet Routing Table: 1914 AfriNIC Prefixes per ASN: 25.35 AfriNIC Region origin ASes announcing only one prefix: 683 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1278 Number of AfriNIC addresses announced to Internet: 105075200 Equivalent to 6 /8s, 67 /16s and 82 /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 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6152 841 651 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4453 535 315 BBIL-AP BHARTI Airtel Ltd., IN 18403 4353 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3918 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3714 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3286 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2896 857 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2290 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2182 434 194 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 13597 40949 5213 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3494 8758 850 COGENT-174, US 22773 3352 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3194 3854 431 GOOGLE-CLOUD-PLATFORM, US 16625 2963 1243 2209 AKAMAI-AS, US 4155 2838 215 1718 USDA-1, 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 7671 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3894 358 2099 M247, RO 12389 3116 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 TELLCOM-AS, TR 212238 2336 170 1703 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 8551 1432 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 12233 3256 574 UNINET, MX 10620 3506 481 1018 Telmex Colombia S.A., CO 13999 2537 538 355 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 11664 1065 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1054 2487 55 TIM SA, BR 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 1822 644 27 RAYA-AS, EG 24863 1621 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1076 523 47 Vodafone-, EG 36914 569 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 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 13597 40949 5213 AMAZON-02, US 8151 12233 3256 574 UNINET, MX 9808 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7671 1713 148 UNI2-AS, ES 7545 6152 841 651 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4781 317 604 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4453 535 315 BBIL-AP BHARTI Airtel Ltd., IN 18403 4353 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3932 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 12233 11659 UNINET, MX 9808 11415 11301 CHINAMOBILE-CN China Mobile Communications Grou 12479 7671 7523 UNI2-AS, ES 7545 6152 5501 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4353 4327 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4453 4138 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3932 3809 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 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 395195 UNALLOCATED 8.38.115.0/24 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /9:14 /10:41 /11:92 /12:299 /13:582 /14:1200 /15:2130 /16:13780 /17:8185 /18:13426 /19:24395 /20:43808 /21:51524 /22:111752 /23:102469 /24:612119 /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 6594 7671 UNI2-AS, ES 8151 6444 12233 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2502 3352 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13597 AMAZON-02, US 30036 2256 2597 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2193 3506 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) ---------------------------------------------- 1:2382 2:1503 3:820 4:10 5:4752 6:161 7:6 8:1565 9:1 11:172 12:1343 13:445 14:2535 15:365 16:285 17:379 18:920 20:554 21:4 22:188 23:7591 24:2671 25:2 27:2771 29:19 31:3310 32:35 33:1 34:83 35:255 36:3196 37:4571 38:9351 39:906 40:206 41:4287 42:1887 43:2688 44:372 45:18734 46:5110 47:323 49:1929 50:1883 51:593 52:1556 54:324 55:1091 56:11 57:268 58:2233 59:1294 60:1172 61:2829 62:2926 63:1787 64:5486 65:2172 66:4653 67:3074 68:1086 69:3837 70:1050 71:621 72:2846 74:2777 75:1506 76:608 77:2772 78:1887 79:1731 80:2207 81:2074 82:3173 83:1452 84:1868 85:3450 86:1092 87:2126 88:1309 89:4410 90:777 91:8382 92:2735 93:2933 94:4048 95:4399 96:1433 97:310 98:959 99:688 100:72 101:1422 102:3879 103:32988 104:5219 105:765 106:975 107:2650 108:1245 109:4112 110:2246 111:3238 112:2141 113:1852 114:1999 115:2188 116:2084 117:2542 118:2931 119:1919 120:2087 121:1374 122:2784 123:2207 124:1634 125:2917 126:91 128:1575 129:927 130:1292 131:2051 132:771 133:451 134:1550 135:348 136:1347 137:1113 138:2816 139:1589 140:1622 141:1510 142:1912 143:1938 144:1180 145:559 146:2171 147:2111 148:2714 149:2931 150:1284 151:2115 152:2080 153:524 154:7887 155:1758 156:3136 157:1931 158:1334 159:2496 160:3616 161:1850 162:3873 163:2222 164:1866 165:2030 166:1510 167:1991 168:3962 169:781 170:5128 171:1009 172:4446 173:3352 174:918 175:1324 176:3708 177:4716 178:3878 179:2312 180:2769 181:4085 182:3477 183:2218 184:2065 185:21586 186:5169 187:4578 188:4262 189:4324 190:9584 191:1485 192:11278 193:9466 194:7814 195:5539 196:3295 197:3261 198:6060 199:8558 200:8081 201:6382 202:10334 203:10655 204:4566 205:3595 206:4416 207:3475 208:4258 209:5108 210:4565 211:2540 212:4562 213:3764 214:1010 215:46 216:6737 217:3196 218:1360 219:395 220:2138 221:1154 222:724 223:2523 End of report