IPv4 R&E Routing Table Report 23:05 GMT Thu 06 Nov, 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: 1009305 Prefixes after maximum aggregation (per Origin AS): 391247 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500657 Number of IPv4 prefixes with a valid ROA: 584940 Number of IPv4 prefixes with an invalid ROA: 567 Number of IPv4 prefixes with no ROA: 423798 Total ASes present in the Internet Routing Table: 77412 Prefixes per ASN: 13.04 Origin-only ASes present in the Internet Routing Table: 66322 Origin ASes announcing only one prefix: 27082 Transit ASes present in the Internet Routing Table: 11090 Transit-only ASes present in the Internet Routing Table: 556 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 990 Number of instances of unregistered ASNs: 1019 Number of 32-bit ASNs allocated by the RIRs: 47912 Number of 32-bit ASNs visible in the Routing Table: 39218 Prefixes from 32-bit ASNs in the Routing Table: 215497 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: 408 Number of addresses announced to Internet: 3102803712 Equivalent to 184 /8s, 241 /16s and 7 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 331009 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 271291 Total APNIC prefixes after maximum aggregation: 80331 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 261045 Unique aggregates announced from the APNIC address blocks: 106124 APNIC Region origin ASes present in the Internet Routing Table: 14811 APNIC Prefixes per ASN: 17.63 APNIC Region origin ASes announcing only one prefix: 4497 APNIC Region transit ASes present in the Internet Routing Table: 2010 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10391 Number of APNIC addresses announced to Internet: 748507648 Equivalent to 44 /8s, 157 /16s and 82 /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: 295866 Total ARIN prefixes after maximum aggregation: 133476 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 296202 Unique aggregates announced from the ARIN address blocks: 145196 ARIN Region origin ASes present in the Internet Routing Table: 19346 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7108 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: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5401 Number of ARIN addresses announced to Internet: 1344879616 Equivalent to 80 /8s, 41 /16s and 60 /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: 280739 Total RIPE prefixes after maximum aggregation: 139437 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 281221 Unique aggregates announced from the RIPE address blocks: 182329 RIPE Region origin ASes present in the Internet Routing Table: 29096 RIPE Prefixes per ASN: 9.67 RIPE Region origin ASes announcing only one prefix: 12104 RIPE Region transit ASes present in the Internet Routing Table: 4044 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12793 Number of RIPE addresses announced to Internet: 735565824 Equivalent to 43 /8s, 215 /16s and 216 /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: 125249 Total LACNIC prefixes after maximum aggregation: 30433 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121312 Unique aggregates announced from the LACNIC address blocks: 49489 LACNIC Region origin ASes present in the Internet Routing Table: 11308 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2553 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9292 Number of LACNIC addresses announced to Internet: 170680320 Equivalent to 10 /8s, 44 /16s and 96 /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: 35170 Total AfriNIC prefixes after maximum aggregation: 6903 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 49117 Unique aggregates announced from the AfriNIC address blocks: 17162 AfriNIC Region origin ASes present in the Internet Routing Table: 1978 AfriNIC Prefixes per ASN: 24.83 AfriNIC Region origin ASes announcing only one prefix: 720 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1341 Number of AfriNIC addresses announced to Internet: 102949888 Equivalent to 6 /8s, 34 /16s and 228 /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 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6089 833 588 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4515 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4435 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3980 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3315 1869 99 VNPT-AS-VN VNPT Corp, VN 56046 3248 828 181 CMNET-JIANGSU-AP China Mobile communicati 24560 2938 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2485 272 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14270 37273 5373 AMAZON-02, US 11492 4780 317 801 CABLEONE, US 22773 4643 3110 404 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3672 1320 82 SHAW, CA 396982 3290 4827 475 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2889 1235 2156 AKAMAI-AS, US 36352 2845 231 913 AS-COLOCROSSING, US 30036 2653 365 301 MEDIACOM-ENTERPRISE-BUSINESS, 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 7288 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4014 378 2281 M247, RO 20940 3898 3395 125 AKAMAI-ASN1, NL 12389 3143 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2539 179 1830 CDNEXT, GB 34984 2415 363 575 TELLCOM-AS, TR 8452 1653 1852 13 TE-AS TE-AS, EG 13188 1606 100 30 TRIOLAN, UA 203020 1574 183 904 HOSTROYALE, IN 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 12484 3292 579 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2503 511 350 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1376 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1282 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1275 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 362 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1027 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 1788 594 28 RAYA-AS, EG 36992 1679 1509 397 ETISALAT-MISR, EG 24863 1264 389 20 LINKdotNET-AS, EG 29571 1261 100 71 ORANGE-COTE-IVOIRE, CI 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 36935 998 521 44 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 15399 551 57 56 WANANCHI-, KE 36914 551 82 3 KENET-AS, 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 14270 37273 5373 AMAZON-02, US 9808 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12484 3292 579 UNINET, MX 12479 7288 1711 149 UNI2-AS, ES 7545 6089 833 588 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4780 317 801 CABLEONE, US 22773 4643 3110 404 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4515 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4435 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13392 13275 CHINAMOBILE-CN China Mobile Communications Grou 8151 12484 11905 UNINET, MX 12479 7288 7139 UNI2-AS, ES 7545 6089 5501 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4435 4411 FPT-AS-AP FPT Telecom Company, VN 22773 4643 4239 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4515 4201 BBIL-AP BHARTI Airtel Ltd., IN 11492 4780 3979 CABLEONE, US 7552 3980 3952 VIETEL-AS-AP Viettel Group, VN 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 3737 AS-PTD, 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 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 /8:18 /9:14 /10:41 /11:94 /12:298 /13:577 /14:1194 /15:2089 /16:13635 /17:8137 /18:13411 /19:24575 /20:44218 /21:51818 /22:112342 /23:104647 /24:632197 /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 6698 12484 UNINET, MX 12479 6232 7288 UNI2-AS, ES 11492 3593 4780 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3460 3672 SHAW, CA 22773 2985 4643 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2438 14270 AMAZON-02, US 30036 2310 2653 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 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) ---------------------------------------------- 1:2438 2:1528 3:971 4:10 5:4917 6:173 7:6 8:1508 9:6 11:172 12:1234 13:552 14:2649 15:404 16:303 17:383 18:905 20:582 21:4 22:188 23:8039 24:2559 25:2 27:2790 29:19 31:3362 32:31 33:1 34:84 35:275 36:4513 37:4568 38:9365 39:1174 40:462 41:4336 42:1941 43:2828 44:401 45:19275 46:5182 47:365 49:2157 50:2050 51:594 52:1627 54:355 55:1105 56:11 57:288 58:2313 59:1321 60:1188 61:3015 62:3098 63:1753 64:5876 65:2130 66:5877 67:3231 68:1489 69:4114 70:1040 71:625 72:2992 74:2879 75:1510 76:600 77:2766 78:1907 79:1790 80:2275 81:2123 82:3571 83:1463 84:2004 85:3575 86:1105 87:2134 88:1328 89:4509 90:830 91:8394 92:2822 93:2986 94:4144 95:4535 96:1457 97:316 98:948 99:762 100:68 101:1485 102:4201 103:32736 104:5465 105:765 106:912 107:2792 108:1195 109:4228 110:2257 111:3862 112:2758 113:1899 114:2087 115:2245 116:2126 117:3098 118:3064 119:2044 120:2344 121:1494 122:2853 123:2262 124:1645 125:2923 126:125 128:1576 129:956 130:1482 131:2215 132:773 133:457 134:1624 135:365 136:1488 137:1131 138:2855 139:1588 140:1671 141:1573 142:2216 143:2131 144:1324 145:631 146:2184 147:2115 148:2774 149:2830 150:1293 151:2648 152:2268 153:587 154:8126 155:2217 156:3229 157:2073 158:1401 159:2661 160:3671 161:1998 162:3988 163:2323 164:1951 165:2551 166:1320 167:2123 168:3814 169:780 170:5465 171:1066 172:4473 173:3429 174:906 175:1353 176:3756 177:4766 178:4294 179:2263 180:2893 181:4303 182:3801 183:2593 184:2065 185:21650 186:5418 187:4724 188:4390 189:4462 190:9697 191:1576 192:11401 193:9496 194:7831 195:5591 196:3266 197:3325 198:6047 199:6092 200:8039 201:6368 202:10454 203:10552 204:4596 205:3651 206:4357 207:3711 208:4236 209:5315 210:4691 211:2645 212:4890 213:3962 214:1040 215:53 216:7136 217:3382 218:1572 219:402 220:2200 221:1265 222:762 223:3125 End of report