IPv4 R&E Routing Table Report 23:00 GMT Thu 14 May, 2026 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: 1045153 Prefixes after maximum aggregation (per Origin AS): 401286 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517324 Number of IPv4 prefixes with a valid ROA: 646280 Number of IPv4 prefixes with an invalid ROA: 481 Number of IPv4 prefixes with no ROA: 398392 Total ASes present in the Internet Routing Table: 78380 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 67196 Origin ASes announcing only one prefix: 27372 Transit ASes present in the Internet Routing Table: 11184 Transit-only ASes present in the Internet Routing Table: 589 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1154 Number of instances of unregistered ASNs: 1184 Number of 32-bit ASNs allocated by the RIRs: 49750 Number of 32-bit ASNs visible in the Routing Table: 40564 Prefixes from 32-bit ASNs in the Routing Table: 230192 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 428 Number of addresses announced to Internet: 3103151360 Equivalent to 184 /8s, 246 /16s and 85 /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: 342091 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285398 Total APNIC prefixes after maximum aggregation: 82882 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 271930 Unique aggregates announced from the APNIC address blocks: 107992 APNIC Region origin ASes present in the Internet Routing Table: 15175 APNIC Prefixes per ASN: 17.92 APNIC Region origin ASes announcing only one prefix: 4605 APNIC Region transit ASes present in the Internet Routing Table: 2051 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: 10772 Number of APNIC addresses announced to Internet: 747700736 Equivalent to 44 /8s, 145 /16s and 2 /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: 301702 Total ARIN prefixes after maximum aggregation: 136410 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301144 Unique aggregates announced from the ARIN address blocks: 147694 ARIN Region origin ASes present in the Internet Routing Table: 19393 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7106 ARIN Region transit ASes present in the Internet Routing Table: 1887 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5569 Number of ARIN addresses announced to Internet: 1347646464 Equivalent to 80 /8s, 83 /16s and 116 /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, 393216-404380 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: 290226 Total RIPE prefixes after maximum aggregation: 143485 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293306 Unique aggregates announced from the RIPE address blocks: 191455 RIPE Region origin ASes present in the Internet Routing Table: 29464 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12206 RIPE Region transit ASes present in the Internet Routing Table: 4082 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 44 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13392 Number of RIPE addresses announced to Internet: 733726208 Equivalent to 43 /8s, 187 /16s and 198 /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: 129629 Total LACNIC prefixes after maximum aggregation: 30799 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 124063 Unique aggregates announced from the LACNIC address blocks: 50305 LACNIC Region origin ASes present in the Internet Routing Table: 11395 LACNIC Prefixes per ASN: 10.89 LACNIC Region origin ASes announcing only one prefix: 2725 LACNIC Region transit ASes present in the Internet Routing Table: 2583 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9441 Number of LACNIC addresses announced to Internet: 169701120 Equivalent to 10 /8s, 29 /16s and 111 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 37044 Total AfriNIC prefixes after maximum aggregation: 7032 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 54282 Unique aggregates announced from the AfriNIC address blocks: 19507 AfriNIC Region origin ASes present in the Internet Routing Table: 2023 AfriNIC Prefixes per ASN: 26.83 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1390 Number of AfriNIC addresses announced to Internet: 104182272 Equivalent to 6 /8s, 53 /16s and 178 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13895 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 551 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4594 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4063 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3721 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3543 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3459 218 601 LCS-AS-AP LARUS Limited, HK 45899 3371 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2768 762 726 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14936 41324 5693 AMAZON-02 - Amazon.com, Inc., US 22773 4795 3116 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4588 305 1093 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3340 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2912 222 913 AS-COLOCROSSING - HostPapa, US 7029 2638 2558 895 WINDSTREAM - Windstream Communications LL 30036 2606 358 468 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7128 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3914 359 2316 M247, RO 20940 3797 3389 109 AKAMAI-ASN1, NL 12389 3137 2321 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2795 205 2066 CDNEXT, GB 34984 2492 367 583 TELLCOM-AS, TR 8452 1689 1852 14 TE-AS TE-AS, EG 203020 1653 252 830 HOSTROYALE, IN 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 12702 3252 644 UNINET, MX 10620 3434 450 1103 Telmex Colombia S.A., CO 13999 2402 504 348 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1367 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1228 371 22 INTEGRATEL PERU S.A.A., PE 22884 1074 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 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 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1272 389 16 LINKdotNET-AS, EG 36935 1262 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 328608 605 56 163 Africa-on-Cloud-AS, ZA 20011 589 155 220 NTT-DATA-Inc, ZA 15399 552 57 57 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 14936 41324 5693 AMAZON-02 - Amazon.com, Inc., US 9808 13895 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12702 3252 644 UNINET, MX 12479 7128 1711 149 UNI2-AS, ES 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4936 551 328 BBIL-AP BHARTI Airtel Ltd., IN 22773 4795 3116 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4594 347 25 FPT-AS-AP FPT Telecom Company, VN 11492 4588 305 1093 CABLEONE - CABLE ONE, INC., 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 13895 13774 CHINAMOBILE-CN China Mobile Communications Grou 8151 12702 12058 UNINET, MX 12479 7128 6979 UNI2-AS, ES 7545 5884 5402 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4936 4608 BBIL-AP BHARTI Airtel Ltd., IN 18403 4594 4569 FPT-AS-AP FPT Telecom Company, VN 22773 4795 4428 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4063 4035 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 VIASAT-SP-BACKBONE - ViaSat,Inc., 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 400273 UNALLOCATED 8.41.137.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.130.204.0/24 Origin: 18807 COMM-WIRELESS-N - Community Wireless, ZZ 23.130.204.0/24 Transit: 10796 TWC-10796-MIDWEST - Charter Communicatio 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 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 /10:39 /11:95 /12:297 /13:580 /14:1184 /15:2098 /16:13567 /17:8235 /18:13274 /19:25401 /20:45689 /21:52307 /22:113261 /23:108058 /24:661038 /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 6926 12702 UNINET, MX 12479 6065 7128 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3465 4588 CABLEONE - CABLE ONE, INC., US 22773 3063 4795 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2703 14936 AMAZON-02 - Amazon.com, Inc., US 30036 2260 2606 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2238 3434 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) ---------------------------------------------- 1:2510 2:2030 3:1003 4:5 5:5190 6:201 7:6 8:1470 9:59 11:172 12:1151 13:706 14:2705 15:465 16:208 17:443 18:915 20:591 21:4 22:188 23:8321 24:2770 25:2 27:2806 28:1 29:19 31:3547 32:36 34:91 35:283 36:4797 37:4434 38:9667 39:1299 40:440 41:4546 42:2200 43:3192 44:450 45:19855 46:4862 47:438 48:129 49:2347 50:2008 51:727 52:1324 54:281 55:1018 56:11 57:321 58:2363 59:1381 60:1175 61:3183 62:3109 63:1686 64:6357 65:2155 66:6123 67:3257 68:1509 69:4222 70:1062 71:607 72:3191 74:3056 75:1501 76:600 77:2947 78:2054 79:1795 80:2346 81:2245 82:4147 83:1455 84:2153 85:3840 86:1096 87:2485 88:1337 89:4773 90:796 91:8449 92:2782 93:3030 94:4403 95:4728 96:1441 97:308 98:945 99:837 100:70 101:1624 102:4573 103:33025 104:5372 105:851 106:901 107:2946 108:1266 109:4253 110:2291 111:4125 112:3181 113:1993 114:2381 115:2302 116:2113 117:3485 118:3045 119:2066 120:2721 121:1541 122:3005 123:2284 124:1708 125:3032 126:158 128:1562 129:968 130:1654 131:2447 132:881 133:486 134:1722 135:616 136:1479 137:1358 138:3392 139:1624 140:1771 141:1747 142:2574 143:2045 144:1781 145:638 146:2181 147:2251 148:2813 149:3151 150:1376 151:2908 152:2548 153:1560 154:9544 155:2299 156:5000 157:2400 158:1578 159:2871 160:3825 161:1967 162:4075 163:2585 164:2458 165:2678 166:1280 167:2319 168:4029 169:862 170:5603 171:1138 172:4777 173:3452 174:882 175:1368 176:3952 177:5039 178:4392 179:2384 180:3192 181:4552 182:4038 183:2841 184:1999 185:21897 186:6159 187:5045 188:4524 189:4527 190:9889 191:1987 192:11484 193:9639 194:7892 195:5825 196:3361 197:3332 198:6116 199:6062 200:8116 201:6388 202:10660 203:10643 204:4776 205:3671 206:4391 207:3834 208:4352 209:5414 210:4742 211:2689 212:5081 213:4116 214:1039 215:47 216:7291 217:3606 218:1708 219:415 220:2187 221:1347 222:935 223:3454 End of report