IPv4 R&E Routing Table Report 23:05 GMT Fri 01 Aug, 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: 990739 Prefixes after maximum aggregation (per Origin AS): 383938 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488535 Number of IPv4 prefixes with a valid ROA: 554866 Number of IPv4 prefixes with an invalid ROA: 955 Number of IPv4 prefixes with no ROA: 434918 Total ASes present in the Internet Routing Table: 77009 Prefixes per ASN: 12.87 Origin-only ASes present in the Internet Routing Table: 65982 Origin ASes announcing only one prefix: 26928 Transit ASes present in the Internet Routing Table: 11027 Transit-only ASes present in the Internet Routing Table: 546 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 1136 Number of instances of unregistered ASNs: 1171 Number of 32-bit ASNs allocated by the RIRs: 47020 Number of 32-bit ASNs visible in the Routing Table: 38663 Prefixes from 32-bit ASNs in the Routing Table: 206906 Number of bogon 32-bit ASNs visible in the Routing Table: 86 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 418 Number of addresses announced to Internet: 3107618560 Equivalent to 185 /8s, 58 /16s and 127 /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: 322836 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263785 Total APNIC prefixes after maximum aggregation: 78108 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 254997 Unique aggregates announced from the APNIC address blocks: 105149 APNIC Region origin ASes present in the Internet Routing Table: 14701 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 4471 APNIC Region transit ASes present in the Internet Routing Table: 1998 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10261 Number of APNIC addresses announced to Internet: 749645056 Equivalent to 44 /8s, 174 /16s and 173 /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: 290454 Total ARIN prefixes after maximum aggregation: 132011 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 291867 Unique aggregates announced from the ARIN address blocks: 141540 ARIN Region origin ASes present in the Internet Routing Table: 19222 ARIN Prefixes per ASN: 15.18 ARIN Region origin ASes announcing only one prefix: 7049 ARIN Region transit ASes present in the Internet Routing Table: 1921 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: 5262 Number of ARIN addresses announced to Internet: 1349306624 Equivalent to 80 /8s, 108 /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: 276089 Total RIPE prefixes after maximum aggregation: 136370 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 275092 Unique aggregates announced from the RIPE address blocks: 178214 RIPE Region origin ASes present in the Internet Routing Table: 28959 RIPE Prefixes per ASN: 9.50 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 4014 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12598 Number of RIPE addresses announced to Internet: 732159488 Equivalent to 43 /8s, 163 /16s and 222 /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: 124581 Total LACNIC prefixes after maximum aggregation: 29867 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120939 Unique aggregates announced from the LACNIC address blocks: 49160 LACNIC Region origin ASes present in the Internet Routing Table: 11274 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2516 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9233 Number of LACNIC addresses announced to Internet: 171192832 Equivalent to 10 /8s, 52 /16s and 50 /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: 34694 Total AfriNIC prefixes after maximum aggregation: 6840 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 47426 Unique aggregates announced from the AfriNIC address blocks: 14105 AfriNIC Region origin ASes present in the Internet Routing Table: 1944 AfriNIC Prefixes per ASN: 24.40 AfriNIC Region origin ASes announcing only one prefix: 706 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 41 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1309 Number of AfriNIC addresses announced to Internet: 105071360 Equivalent to 6 /8s, 67 /16s and 67 /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 12380 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6136 837 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4541 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2915 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2891 812 178 CMNET-JIANGSU-AP China Mobile communicati 4755 2179 427 185 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 13689 41054 5275 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3494 8769 853 COGENT-174, US 22773 3341 3030 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3200 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 2926 1237 2181 AKAMAI-AS, US 4155 2892 219 1735 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 7579 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3906 3395 123 AKAMAI-ASN1, NL 9009 3840 364 2156 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2310 164 1680 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1579 1852 14 TE-AS TE-AS, EG 203020 1523 191 672 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 12321 3272 576 UNINET, MX 10620 3481 473 1037 Telmex Colombia S.A., CO 13999 2522 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1072 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1069 68 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1022 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 1725 660 28 RAYA-AS, EG 29571 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1411 1493 376 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1232 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 914 520 43 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 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 13689 41054 5275 AMAZON-02, US 9808 12380 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12321 3272 576 UNINET, MX 12479 7579 1711 149 UNI2-AS, ES 7545 6136 837 622 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4541 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 1332 27 VIETEL-AS-AP Viettel Group, 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 12380 12264 CHINAMOBILE-CN China Mobile Communications Grou 8151 12321 11745 UNINET, MX 12479 7579 7430 UNI2-AS, ES 7545 6136 5514 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4541 4514 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 3881 VIETEL-AS-AP Viettel Group, VN 20940 3906 3783 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 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 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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: 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 23.143.28.0/24 Origin: 401890 HYPFLX-AS01, US 23.143.28.0/24 Transit: 399392 FIREDOG-AS399392, 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 /12:298 /13:577 /14:1199 /15:2129 /16:13758 /17:8160 /18:13418 /19:24440 /20:43847 /21:51539 /22:111774 /23:102617 /24:616820 /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 6540 12321 UNINET, MX 12479 6537 7579 UNI2-AS, ES 11492 3619 4827 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2492 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2358 13689 AMAZON-02, US 30036 2291 2632 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2197 3481 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) ---------------------------------------------- 1:2423 2:1489 3:862 4:10 5:4748 6:163 7:6 8:1546 9:2 11:172 12:1338 13:457 14:2580 15:368 16:286 17:377 18:899 20:561 21:4 22:188 23:7716 24:2674 25:2 27:2789 29:19 31:3349 32:35 33:1 34:83 35:260 36:4061 37:4555 38:9469 39:947 40:246 41:4253 42:2019 43:2733 44:374 45:18714 46:5063 47:336 49:1899 50:2035 51:591 52:1554 54:325 55:1099 56:11 57:271 58:2212 59:1302 60:1172 61:2915 62:2981 63:1783 64:5542 65:2165 66:4728 67:3092 68:1068 69:3879 70:1038 71:623 72:2851 74:2789 75:1503 76:610 77:2777 78:1894 79:1711 80:2201 81:2045 82:3182 83:1437 84:1899 85:3483 86:1093 87:2126 88:1307 89:4435 90:778 91:8408 92:2716 93:2943 94:4060 95:4402 96:1448 97:309 98:955 99:692 100:71 101:1473 102:3884 103:32872 104:5250 105:805 106:971 107:2655 108:1261 109:4182 110:2242 111:3444 112:2349 113:1855 114:1968 115:2208 116:2091 117:2639 118:2986 119:1939 120:2184 121:1325 122:2789 123:2231 124:1705 125:2904 126:91 128:1584 129:963 130:1292 131:2059 132:776 133:450 134:1596 135:351 136:1466 137:1124 138:2836 139:1600 140:1626 141:1521 142:1891 143:1966 144:1170 145:567 146:2176 147:2099 148:2722 149:2937 150:1288 151:2249 152:2064 153:524 154:7567 155:1850 156:3048 157:1953 158:1357 159:2518 160:3598 161:1894 162:3889 163:2208 164:1878 165:2427 166:1530 167:2014 168:3978 169:779 170:5167 171:999 172:4229 173:3408 174:919 175:1330 176:3733 177:4781 178:3938 179:2350 180:2728 181:4134 182:3547 183:2324 184:2064 185:21571 186:5265 187:4668 188:4268 189:4367 190:9555 191:1504 192:11300 193:9473 194:7782 195:5595 196:3280 197:3197 198:6088 199:8595 200:8093 201:6398 202:10398 203:10649 204:4580 205:3578 206:4456 207:3510 208:4265 209:5126 210:4635 211:2602 212:4548 213:3809 214:1027 215:48 216:6775 217:3260 218:1394 219:400 220:2147 221:1204 222:739 223:2745 End of report