IPv4 R&E Routing Table Report 23:05 GMT Fri 10 Oct, 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: 1006650 Prefixes after maximum aggregation (per Origin AS): 390730 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 497102 Number of IPv4 prefixes with a valid ROA: 577269 Number of IPv4 prefixes with an invalid ROA: 768 Number of IPv4 prefixes with no ROA: 428613 Total ASes present in the Internet Routing Table: 77310 Prefixes per ASN: 13.02 Origin-only ASes present in the Internet Routing Table: 66267 Origin ASes announcing only one prefix: 27053 Transit ASes present in the Internet Routing Table: 11043 Transit-only ASes present in the Internet Routing Table: 551 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1065 Number of instances of unregistered ASNs: 1094 Number of 32-bit ASNs allocated by the RIRs: 47665 Number of 32-bit ASNs visible in the Routing Table: 39077 Prefixes from 32-bit ASNs in the Routing Table: 213247 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 481 Number of addresses announced to Internet: 3111050752 Equivalent to 185 /8s, 110 /16s and 222 /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: 327705 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269979 Total APNIC prefixes after maximum aggregation: 79862 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 259836 Unique aggregates announced from the APNIC address blocks: 105812 APNIC Region origin ASes present in the Internet Routing Table: 14784 APNIC Prefixes per ASN: 17.58 APNIC Region origin ASes announcing only one prefix: 4480 APNIC Region transit ASes present in the Internet Routing Table: 1987 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10363 Number of APNIC addresses announced to Internet: 751568896 Equivalent to 44 /8s, 204 /16s and 8 /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: 295501 Total ARIN prefixes after maximum aggregation: 134179 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 296434 Unique aggregates announced from the ARIN address blocks: 143826 ARIN Region origin ASes present in the Internet Routing Table: 19306 ARIN Prefixes per ASN: 15.35 ARIN Region origin ASes announcing only one prefix: 7098 ARIN Region transit ASes present in the Internet Routing Table: 1912 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5352 Number of ARIN addresses announced to Internet: 1352149248 Equivalent to 80 /8s, 152 /16s and 41 /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: 280083 Total RIPE prefixes after maximum aggregation: 138790 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279673 Unique aggregates announced from the RIPE address blocks: 181073 RIPE Region origin ASes present in the Internet Routing Table: 29056 RIPE Prefixes per ASN: 9.63 RIPE Region origin ASes announcing only one prefix: 12094 RIPE Region transit ASes present in the Internet Routing Table: 4030 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12753 Number of RIPE addresses announced to Internet: 732547328 Equivalent to 43 /8s, 169 /16s and 201 /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: 124818 Total LACNIC prefixes after maximum aggregation: 30339 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 120989 Unique aggregates announced from the LACNIC address blocks: 49375 LACNIC Region origin ASes present in the Internet Routing Table: 11304 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2667 LACNIC Region transit ASes present in the Internet Routing Table: 2534 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9275 Number of LACNIC addresses announced to Internet: 170681856 Equivalent to 10 /8s, 44 /16s and 102 /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: 35204 Total AfriNIC prefixes after maximum aggregation: 6855 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 49237 Unique aggregates announced from the AfriNIC address blocks: 16592 AfriNIC Region origin ASes present in the Internet Routing Table: 1968 AfriNIC Prefixes per ASN: 25.02 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103847680 Equivalent to 6 /8s, 48 /16s and 151 /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 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 603 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4511 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4471 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3304 1869 100 VNPT-AS-VN VNPT Corp, VN 56046 3140 828 181 CMNET-JIANGSU-AP China Mobile communicati 24560 2927 863 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2469 512 1597 HUTCHISON-AS-AP HGC Global Communications 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 14294 40996 5358 AMAZON-02, US 11492 4756 321 791 CABLEONE, US 22773 4020 3070 361 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3684 1320 82 SHAW, CA 396982 3273 4824 465 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3115 241 1740 USDA-1, US 174 3051 8764 852 COGENT-174, US 16625 2875 1224 2156 AKAMAI-AS, 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 7403 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3983 374 2242 M247, RO 20940 3894 3395 124 AKAMAI-ASN1, NL 12389 3139 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2515 180 1828 CDNEXT, GB 34984 2414 363 575 TELLCOM-AS, TR 203020 2036 223 1004 HOSTROYALE, IN 8452 1628 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12402 3282 575 UNINET, MX 10620 3477 468 1087 Telmex Colombia S.A., CO 13999 2516 508 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1226 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1061 67 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2486 56 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 1820 636 31 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 29571 1284 102 52 ORANGE-COTE-IVOIRE, CI 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 36935 1067 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 15399 550 56 54 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 14294 40996 5358 AMAZON-02, US 9808 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12402 3282 575 UNINET, MX 12479 7403 1711 149 UNI2-AS, ES 7545 6184 835 603 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4756 321 791 CABLEONE, US 18403 4511 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4471 536 312 BBIL-AP BHARTI Airtel Ltd., IN 22773 4020 3070 361 ASN-CXA-ALL-CCI-22773-RDC, 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 9808 13731 13614 CHINAMOBILE-CN China Mobile Communications Grou 8151 12402 11827 UNINET, MX 12479 7403 7254 UNI2-AS, ES 7545 6184 5581 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4511 4486 FPT-AS-AP FPT Telecom Company, VN 9498 4471 4159 BBIL-AP BHARTI Airtel Ltd., IN 11492 4756 3965 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 7155 3859 3774 VIASAT-SP-BACKBONE, US 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 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: 21859 ZEN-ECN, US 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 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 /11:93 /12:300 /13:580 /14:1197 /15:2120 /16:13748 /17:8146 /18:13399 /19:24561 /20:44221 /21:51750 /22:112421 /23:103893 /24:630150 /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 8151 6622 12402 UNINET, MX 12479 6368 7403 UNI2-AS, ES 11492 3569 4756 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3684 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2522 4020 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2395 14294 AMAZON-02, US 30036 2299 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3477 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) ---------------------------------------------- 1:2431 2:1512 3:941 4:10 5:4857 6:170 7:6 8:1532 9:6 11:172 12:1240 13:565 14:2649 15:401 16:304 17:388 18:908 20:574 21:4 22:188 23:7886 24:2653 25:2 27:2792 29:19 31:3360 32:31 33:1 34:84 35:272 36:4461 37:4545 38:9484 39:1098 40:470 41:4309 42:2022 43:2780 44:388 45:19191 46:5171 47:366 49:2087 50:2050 51:595 52:1592 54:359 55:1182 56:11 57:281 58:2326 59:1318 60:1189 61:2953 62:3086 63:1762 64:5662 65:2132 66:5045 67:3113 68:1211 69:3987 70:1047 71:627 72:2983 74:2823 75:1502 76:598 77:2773 78:1894 79:1752 80:2245 81:2122 82:3461 83:1471 84:1985 85:3527 86:1101 87:2135 88:1324 89:4514 90:809 91:8378 92:2807 93:2978 94:4166 95:4497 96:1471 97:312 98:948 99:753 100:71 101:1476 102:4152 103:32842 104:5455 105:781 106:894 107:2666 108:1205 109:4207 110:2257 111:3771 112:2662 113:1861 114:2065 115:2300 116:2091 117:3026 118:3034 119:2009 120:2278 121:1478 122:2803 123:2254 124:1707 125:2910 126:125 128:1569 129:958 130:1366 131:2155 132:788 133:462 134:1618 135:363 136:1488 137:1125 138:2823 139:1593 140:1639 141:1547 142:2129 143:2085 144:1262 145:628 146:2179 147:2130 148:2740 149:2929 150:1287 151:2604 152:2167 153:576 154:7887 155:2114 156:3286 157:1998 158:1433 159:2600 160:3620 161:1993 162:3949 163:2298 164:1948 165:2552 166:1567 167:2107 168:3828 169:774 170:5385 171:1021 172:4458 173:3412 174:906 175:1356 176:3807 177:4745 178:4294 179:2277 180:2849 181:4248 182:3748 183:2555 184:2050 185:21642 186:5386 187:4686 188:4384 189:4407 190:9676 191:1561 192:11369 193:9465 194:7793 195:5572 196:3291 197:3349 198:6068 199:8794 200:8058 201:6344 202:10445 203:10576 204:4591 205:3633 206:4387 207:3564 208:4269 209:5307 210:4688 211:2684 212:4818 213:3889 214:1036 215:52 216:6941 217:3356 218:1574 219:396 220:2188 221:1248 222:751 223:3070 End of report