IPv4 R&E Routing Table Report 23:05 GMT Sat 04 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: 1003415 Prefixes after maximum aggregation (per Origin AS): 389389 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495874 Number of IPv4 prefixes with a valid ROA: 574350 Number of IPv4 prefixes with an invalid ROA: 783 Number of IPv4 prefixes with no ROA: 428282 Total ASes present in the Internet Routing Table: 77266 Prefixes per ASN: 12.99 Origin-only ASes present in the Internet Routing Table: 66215 Origin ASes announcing only one prefix: 27032 Transit ASes present in the Internet Routing Table: 11051 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: 4.8 Max AS path length visible: 58 Max AS path prepend of ASN ( 37447) 54 Prefixes from unregistered ASNs in the Routing Table: 1026 Number of instances of unregistered ASNs: 1056 Number of 32-bit ASNs allocated by the RIRs: 47638 Number of 32-bit ASNs visible in the Routing Table: 39028 Prefixes from 32-bit ASNs in the Routing Table: 211817 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 428 Number of addresses announced to Internet: 3110600704 Equivalent to 185 /8s, 104 /16s and 0 /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: 327010 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269208 Total APNIC prefixes after maximum aggregation: 79519 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 259060 Unique aggregates announced from the APNIC address blocks: 105803 APNIC Region origin ASes present in the Internet Routing Table: 14774 APNIC Prefixes per ASN: 17.53 APNIC Region origin ASes announcing only one prefix: 4471 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: 10352 Number of APNIC addresses announced to Internet: 751141120 Equivalent to 44 /8s, 197 /16s and 129 /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: 293730 Total ARIN prefixes after maximum aggregation: 133680 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295238 Unique aggregates announced from the ARIN address blocks: 142924 ARIN Region origin ASes present in the Internet Routing Table: 19298 ARIN Prefixes per ASN: 15.30 ARIN Region origin ASes announcing only one prefix: 7093 ARIN Region transit ASes present in the Internet Routing Table: 1933 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5343 Number of ARIN addresses announced to Internet: 1351602432 Equivalent to 80 /8s, 143 /16s and 209 /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: 279505 Total RIPE prefixes after maximum aggregation: 138327 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279075 Unique aggregates announced from the RIPE address blocks: 180717 RIPE Region origin ASes present in the Internet Routing Table: 29050 RIPE Prefixes per ASN: 9.61 RIPE Region origin ASes announcing only one prefix: 12093 RIPE Region transit ASes present in the Internet Routing Table: 4022 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: 12740 Number of RIPE addresses announced to Internet: 732911872 Equivalent to 43 /8s, 175 /16s and 89 /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: 124915 Total LACNIC prefixes after maximum aggregation: 30336 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121134 Unique aggregates announced from the LACNIC address blocks: 49481 LACNIC Region origin ASes present in the Internet Routing Table: 11300 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2527 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9261 Number of LACNIC addresses announced to Internet: 170781696 Equivalent to 10 /8s, 45 /16s and 236 /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: 35031 Total AfriNIC prefixes after maximum aggregation: 6840 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 48480 Unique aggregates announced from the AfriNIC address blocks: 16570 AfriNIC Region origin ASes present in the Internet Routing Table: 1966 AfriNIC Prefixes per ASN: 24.66 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 58 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1332 Number of AfriNIC addresses announced to Internet: 103929088 Equivalent to 6 /8s, 49 /16s and 213 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6183 835 603 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4522 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3958 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3725 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3301 1869 100 VNPT-AS-VN VNPT Corp, VN 56046 3121 828 182 CMNET-JIANGSU-AP China Mobile communicati 24560 2925 862 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2361 505 1513 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 14302 40992 5384 AMAZON-02, US 11492 4752 320 794 CABLEONE, US 22773 3973 3049 336 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3679 1320 82 SHAW, CA 396982 3270 4824 464 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3086 239 1716 USDA-1, US 174 3040 8766 860 COGENT-174, US 16625 2909 1240 2174 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 7428 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3985 374 2241 M247, RO 20940 3917 3395 124 AKAMAI-ASN1, NL 12389 3124 2315 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2467 176 1791 CDNEXT, GB 34984 2414 363 575 TELLCOM-AS, TR 203020 1852 200 898 HOSTROYALE, IN 8452 1633 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 12379 3278 574 UNINET, MX 10620 3500 474 1069 Telmex Colombia S.A., CO 13999 2544 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 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 1231 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1064 68 349 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 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 1770 616 28 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 29571 1283 102 53 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 950 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 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 14302 40992 5384 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12379 3278 574 UNINET, MX 12479 7428 1711 149 UNI2-AS, ES 7545 6183 835 603 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4752 320 794 CABLEONE, US 18403 4522 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 9009 3985 374 2241 M247, RO 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12379 11805 UNINET, MX 12479 7428 7279 UNI2-AS, ES 7545 6183 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4522 4496 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3958 CABLEONE, US 7552 3958 3930 VIETEL-AS-AP Viettel Group, VN 20940 3917 3793 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 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 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 23.140.216.0/24 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 23.146.204.0/24 Origin: 214696 UNCOLLAPSE-AS, US 23.146.204.0/24 Transit: 53667 PONYNET, 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 /12:301 /13:578 /14:1198 /15:2120 /16:13751 /17:8139 /18:13385 /19:24517 /20:44190 /21:51698 /22:112308 /23:103725 /24:627341 /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 6602 12379 UNINET, MX 12479 6394 7428 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3679 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2522 3973 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2391 14302 AMAZON-02, US 30036 2290 2630 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 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) ---------------------------------------------- 1:2429 2:1520 3:947 4:10 5:4844 6:169 7:6 8:1528 9:6 11:172 12:1243 13:564 14:2639 15:401 16:304 17:389 18:907 20:574 21:4 22:188 23:7863 24:2649 25:2 27:2788 29:19 31:3353 32:31 33:1 34:84 35:272 36:4454 37:4544 38:9515 39:1089 40:295 41:4355 42:2011 43:2777 44:387 45:18970 46:5190 47:342 49:2027 50:2044 51:593 52:1593 54:359 55:1108 56:11 57:283 58:2284 59:1320 60:1188 61:2950 62:3082 63:1761 64:5654 65:2135 66:4932 67:3104 68:1095 69:3925 70:1044 71:631 72:2972 74:2825 75:1494 76:597 77:2775 78:1892 79:1750 80:2246 81:2107 82:3435 83:1472 84:1981 85:3518 86:1102 87:2123 88:1324 89:4489 90:808 91:8385 92:2785 93:2980 94:4167 95:4459 96:1473 97:310 98:952 99:738 100:71 101:1476 102:4140 103:32847 104:5360 105:769 106:895 107:2662 108:1201 109:4222 110:2257 111:3756 112:2651 113:1858 114:1993 115:2300 116:2096 117:2942 118:3052 119:1991 120:2260 121:1348 122:2813 123:2253 124:1708 125:2910 126:93 128:1568 129:956 130:1267 131:2126 132:783 133:461 134:1606 135:365 136:1490 137:1124 138:2801 139:1600 140:1639 141:1547 142:2036 143:2056 144:1270 145:627 146:2175 147:2121 148:2741 149:2918 150:1286 151:2554 152:2170 153:574 154:7413 155:2054 156:3485 157:2008 158:1425 159:2593 160:3564 161:1994 162:3939 163:2296 164:2129 165:2560 166:1562 167:2100 168:3822 169:774 170:5353 171:1025 172:4240 173:3403 174:909 175:1353 176:3801 177:4720 178:4257 179:2305 180:2764 181:4247 182:3725 183:2550 184:2052 185:21643 186:5368 187:4720 188:4321 189:4407 190:9696 191:1538 192:11371 193:9468 194:7794 195:5566 196:3267 197:3355 198:6081 199:8727 200:8090 201:6358 202:10417 203:10562 204:4573 205:3621 206:4383 207:3560 208:4284 209:5297 210:4711 211:2679 212:4794 213:3882 214:1037 215:50 216:6887 217:3343 218:1564 219:396 220:2192 221:1234 222:750 223:3031 End of report