IPv4 R&E Routing Table Report 23:05 GMT Sat 07 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: 982086 Prefixes after maximum aggregation (per Origin AS): 379438 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482143 Number of IPv4 prefixes with a valid ROA: 547189 Number of IPv4 prefixes with an invalid ROA: 675 Number of IPv4 prefixes with no ROA: 434222 Total ASes present in the Internet Routing Table: 76781 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65832 Origin ASes announcing only one prefix: 26918 Transit ASes present in the Internet Routing Table: 10949 Transit-only ASes present in the Internet Routing Table: 544 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1036 Number of instances of unregistered ASNs: 1068 Number of 32-bit ASNs allocated by the RIRs: 46622 Number of 32-bit ASNs visible in the Routing Table: 38290 Prefixes from 32-bit ASNs in the Routing Table: 203400 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 435 Number of addresses announced to Internet: 3110170112 Equivalent to 185 /8s, 97 /16s and 110 /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: 321125 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258356 Total APNIC prefixes after maximum aggregation: 77140 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249817 Unique aggregates announced from the APNIC address blocks: 104239 APNIC Region origin ASes present in the Internet Routing Table: 14572 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4434 APNIC Region transit ASes present in the Internet Routing Table: 1955 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10115 Number of APNIC addresses announced to Internet: 748680192 Equivalent to 44 /8s, 159 /16s and 244 /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: 288871 Total ARIN prefixes after maximum aggregation: 130926 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290584 Unique aggregates announced from the ARIN address blocks: 139618 ARIN Region origin ASes present in the Internet Routing Table: 19215 ARIN Prefixes per ASN: 15.12 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: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5219 Number of ARIN addresses announced to Internet: 1353173248 Equivalent to 80 /8s, 167 /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: 274316 Total RIPE prefixes after maximum aggregation: 134495 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272855 Unique aggregates announced from the RIPE address blocks: 175318 RIPE Region origin ASes present in the Internet Routing Table: 28922 RIPE Prefixes per ASN: 9.43 RIPE Region origin ASes announcing only one prefix: 12069 RIPE Region transit ASes present in the Internet Routing Table: 3983 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: 12466 Number of RIPE addresses announced to Internet: 731265792 Equivalent to 43 /8s, 150 /16s and 59 /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: 124022 Total LACNIC prefixes after maximum aggregation: 29531 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120360 Unique aggregates announced from the LACNIC address blocks: 49004 LACNIC Region origin ASes present in the Internet Routing Table: 11255 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2514 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9209 Number of LACNIC addresses announced to Internet: 171918592 Equivalent to 10 /8s, 63 /16s and 69 /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: 35485 Total AfriNIC prefixes after maximum aggregation: 6714 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48035 Unique aggregates announced from the AfriNIC address blocks: 13574 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.08 AfriNIC Region origin ASes announcing only one prefix: 693 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: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 104933376 Equivalent to 6 /8s, 65 /16s and 40 /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 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4458 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3274 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2177 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13615 40955 5211 AMAZON-02, US 11492 4760 316 593 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3450 8746 888 COGENT-174, US 22773 3350 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3182 3853 424 GOOGLE-CLOUD-PLATFORM, US 16625 2999 1250 2221 AKAMAI-AS, US 36352 2815 230 855 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 7684 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3928 3395 123 AKAMAI-ASN1, NL 9009 3874 353 2076 M247, RO 12389 3108 2306 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2248 163 1639 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1574 1852 14 TE-AS TE-AS, EG 62240 1413 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 12182 3255 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2548 540 363 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1372 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 11664 1195 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1038 373 162 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 1634 389 17 LINKdotNET-AS, EG 29571 1614 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1247 553 104 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 558 82 3 KENET-AS, KE 15399 532 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 13615 40955 5211 AMAZON-02, US 8151 12182 3255 582 UNINET, MX 9808 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7684 1714 148 UNI2-AS, ES 7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4760 316 593 CABLEONE, US 18403 4458 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 3928 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 12182 11600 UNINET, MX 9808 11065 10968 CHINAMOBILE-CN China Mobile Communications Grou 12479 7684 7536 UNI2-AS, ES 7545 6179 5530 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4458 4433 FPT-AS-AP FPT Telecom Company, VN 11492 4760 4167 CABLEONE, US 9498 4379 4075 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3928 3805 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /9:14 /10:41 /11:92 /12:299 /13:581 /14:1211 /15:2139 /16:13860 /17:8210 /18:13612 /19:24458 /20:43869 /21:51462 /22:111645 /23:102015 /24:608562 /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 6603 7684 UNI2-AS, ES 8151 6383 12182 UNINET, MX 11492 3557 4760 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2498 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2384 13615 AMAZON-02, US 30036 2242 2583 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 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) ---------------------------------------------- 1:2371 2:1486 3:800 4:9 5:4712 6:162 7:6 8:1573 9:1 11:172 12:1356 13:435 14:2521 15:360 16:285 17:376 18:920 20:544 21:4 22:188 23:7544 24:2748 25:2 27:2769 29:19 31:3273 32:36 33:1 34:83 35:254 36:3071 37:4591 38:9240 39:910 40:172 41:4200 42:1970 43:2635 44:376 45:18583 46:5102 47:318 49:1937 50:1881 51:591 52:1570 54:321 55:1092 56:11 57:260 58:2204 59:1268 60:1171 61:2826 62:2932 63:1796 64:5448 65:2178 66:4602 67:3049 68:1122 69:3843 70:1075 71:627 72:2836 74:2783 75:1507 76:616 77:2711 78:1888 79:1708 80:2209 81:2049 82:3119 83:1445 84:1861 85:3441 86:1077 87:2135 88:1294 89:4398 90:770 91:8371 92:2707 93:2914 94:4047 95:4337 96:1418 97:311 98:979 99:697 100:73 101:1407 102:3854 103:32636 104:5091 105:756 106:1034 107:2656 108:1246 109:4070 110:2252 111:3276 112:2129 113:1811 114:1984 115:2099 116:2073 117:2525 118:2883 119:1923 120:1968 121:1374 122:2766 123:2176 124:1629 125:2889 126:91 128:1566 129:960 130:1295 131:1983 132:773 133:449 134:1540 135:334 136:1350 137:1124 138:2885 139:1592 140:1595 141:1496 142:1900 143:1818 144:1147 145:527 146:2176 147:2114 148:2717 149:2892 150:1268 151:1941 152:2079 153:521 154:7430 155:1732 156:3012 157:1915 158:1325 159:2488 160:3605 161:1847 162:3800 163:2182 164:1865 165:2225 166:1490 167:1944 168:3993 169:789 170:5117 171:1018 172:4433 173:3313 174:916 175:1303 176:3699 177:4688 178:3702 179:2304 180:2752 181:4090 182:3447 183:2174 184:2056 185:21565 186:5164 187:4504 188:4244 189:4289 190:9583 191:1475 192:11268 193:9464 194:7800 195:5538 196:3258 197:3661 198:6066 199:8532 200:8075 201:6350 202:10248 203:10637 204:4541 205:3597 206:4454 207:3472 208:4225 209:5123 210:4545 211:2530 212:4566 213:3721 214:1027 215:48 216:6749 217:3138 218:1354 219:385 220:2090 221:1123 222:722 223:2454 End of report