IPv4 R&E Routing Table Report 23:00 GMT Sat 18 Apr, 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: 1039328 Prefixes after maximum aggregation (per Origin AS): 399142 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 514654 Number of IPv4 prefixes with a valid ROA: 632660 Number of IPv4 prefixes with an invalid ROA: 428 Number of IPv4 prefixes with no ROA: 406240 Total ASes present in the Internet Routing Table: 78251 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 67066 Origin ASes announcing only one prefix: 27347 Transit ASes present in the Internet Routing Table: 11185 Transit-only ASes present in the Internet Routing Table: 589 Paths with bogon ASNs present in the IPv4 Routing Table: 39 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: 1097 Number of instances of unregistered ASNs: 1129 Number of 32-bit ASNs allocated by the RIRs: 49372 Number of 32-bit ASNs visible in the Routing Table: 40367 Prefixes from 32-bit ASNs in the Routing Table: 228457 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 519 Number of addresses announced to Internet: 3103604480 Equivalent to 184 /8s, 253 /16s and 63 /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: 339088 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282980 Total APNIC prefixes after maximum aggregation: 82352 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 269855 Unique aggregates announced from the APNIC address blocks: 107711 APNIC Region origin ASes present in the Internet Routing Table: 15126 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4623 APNIC Region transit ASes present in the Internet Routing Table: 2048 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10721 Number of APNIC addresses announced to Internet: 748984064 Equivalent to 44 /8s, 164 /16s and 151 /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: 302386 Total ARIN prefixes after maximum aggregation: 135701 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301960 Unique aggregates announced from the ARIN address blocks: 147143 ARIN Region origin ASes present in the Internet Routing Table: 19390 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7118 ARIN Region transit ASes present in the Internet Routing Table: 1904 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: 5549 Number of ARIN addresses announced to Internet: 1347909632 Equivalent to 80 /8s, 87 /16s and 120 /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: 288140 Total RIPE prefixes after maximum aggregation: 142684 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290697 Unique aggregates announced from the RIPE address blocks: 189652 RIPE Region origin ASes present in the Internet Routing Table: 29407 RIPE Prefixes per ASN: 9.89 RIPE Region origin ASes announcing only one prefix: 12185 RIPE Region transit ASes present in the Internet Routing Table: 4078 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13288 Number of RIPE addresses announced to Internet: 733445888 Equivalent to 43 /8s, 183 /16s and 127 /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: 127713 Total LACNIC prefixes after maximum aggregation: 30770 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122580 Unique aggregates announced from the LACNIC address blocks: 50298 LACNIC Region origin ASes present in the Internet Routing Table: 11360 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2570 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: 9422 Number of LACNIC addresses announced to Internet: 169773568 Equivalent to 10 /8s, 30 /16s and 138 /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: 37012 Total AfriNIC prefixes after maximum aggregation: 6987 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53717 Unique aggregates announced from the AfriNIC address blocks: 19449 AfriNIC Region origin ASes present in the Internet Routing Table: 2024 AfriNIC Prefixes per ASN: 26.54 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1387 Number of AfriNIC addresses announced to Internet: 103268352 Equivalent to 6 /8s, 39 /16s and 192 /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 13837 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4922 551 331 BBIL-AP BHARTI Airtel Ltd., IN 18403 4591 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4056 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3680 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3490 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3361 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2991 847 549 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2890 182 491 LCS-AS-AP LARUS Limited, HK 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 14736 41277 5672 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 75 SHAW - Shaw Communications, CA 174 3332 8766 823 COGENT-174 - Cogent Communications, LLC, 396982 3323 4859 498 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2749 224 918 AS-COLOCROSSING - HostPapa, US 30036 2676 367 303 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 7174 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 20940 3836 3389 110 AKAMAI-ASN1, NL 9009 3826 353 2247 M247, RO 12389 3145 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2743 199 2023 CDNEXT, GB 34984 2451 365 575 TELLCOM-AS, TR 8452 1711 1852 14 TE-AS TE-AS, EG 203020 1667 252 832 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 12837 3309 619 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2436 506 346 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1437 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1246 371 22 INTEGRATEL PERU S.A.A., PE 26615 1072 2392 100 TIM SA, BR 22884 1062 71 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1223 520 41 Vodafone-, EG 37069 1113 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 555 57 59 WANANCHI-, KE 36914 548 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 14736 41277 5672 AMAZON-02 - Amazon.com, Inc., US 9808 13837 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12837 3309 619 UNINET, MX 12479 7174 1711 149 UNI2-AS, ES 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4922 551 331 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 18403 4591 347 26 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 13837 13716 CHINAMOBILE-CN China Mobile Communications Grou 8151 12837 12218 UNINET, MX 12479 7174 7025 UNI2-AS, ES 7545 5906 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4922 4591 BBIL-AP BHARTI Airtel Ltd., IN 18403 4591 4565 FPT-AS-AP FPT Telecom Company, VN 22773 4779 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4056 4028 VIETEL-AS-AP Viettel Group, VN 7155 3870 3785 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 198767 UNALLOCATED 5.175.194.0/24 212895 ROUTE64_ORG, DE 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 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 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:39 /11:95 /12:297 /13:582 /14:1186 /15:2098 /16:13570 /17:8241 /18:13252 /19:25347 /20:45617 /21:52218 /22:113268 /23:107059 /24:656429 /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 7025 12837 UNINET, MX 12479 6115 7174 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3531 4670 CABLEONE - CABLE ONE, INC., US 6327 3505 3723 SHAW - Shaw Communications, CA 22773 3051 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2649 14736 AMAZON-02 - Amazon.com, Inc., US 30036 2328 2676 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2496 2:1857 3:1012 4:5 5:5191 6:197 7:6 8:1487 9:39 11:172 12:1188 13:693 14:2689 15:459 16:195 17:424 18:916 20:585 21:4 22:188 23:8167 24:2778 25:2 27:2818 28:1 29:19 31:3470 32:36 34:90 35:283 36:4695 37:4435 38:10193 39:1285 40:417 41:4547 42:2198 43:3095 44:447 45:19791 46:4874 47:411 48:125 49:2233 50:2020 51:656 52:1313 54:285 55:1117 56:11 57:322 58:2364 59:1386 60:1174 61:3156 62:3123 63:1715 64:6329 65:2133 66:6068 67:3259 68:1501 69:4207 70:1057 71:612 72:3208 74:3027 75:1500 76:588 77:2943 78:1979 79:1797 80:2343 81:2231 82:4084 83:1443 84:2138 85:3820 86:1089 87:2371 88:1341 89:4745 90:801 91:8433 92:2817 93:3006 94:4348 95:4675 96:1456 97:313 98:940 99:815 100:70 101:1636 102:4498 103:32964 104:5356 105:854 106:912 107:2889 108:1249 109:4248 110:2289 111:4113 112:3161 113:1966 114:2270 115:2277 116:2174 117:3505 118:2955 119:2106 120:2702 121:1542 122:2988 123:2267 124:1700 125:3010 126:126 128:1583 129:960 130:1628 131:2462 132:838 133:472 134:1672 135:613 136:1578 137:1344 138:3314 139:1629 140:1749 141:1726 142:2536 143:2109 144:1765 145:645 146:2203 147:2221 148:2784 149:3135 150:1378 151:2845 152:2318 153:1343 154:9859 155:2300 156:4539 157:2301 158:1549 159:2860 160:3819 161:1959 162:4034 163:2498 164:2041 165:2651 166:1270 167:2304 168:4003 169:857 170:5576 171:1128 172:4646 173:3485 174:882 175:1367 176:3872 177:4832 178:4352 179:2319 180:3199 181:4550 182:4021 183:2830 184:2034 185:21818 186:5789 187:4972 188:4589 189:4518 190:9836 191:1546 192:11448 193:9629 194:7883 195:5813 196:3351 197:3352 198:6108 199:6056 200:8066 201:6386 202:10686 203:10639 204:4762 205:3662 206:4499 207:3837 208:4368 209:5391 210:4704 211:2682 212:5097 213:4122 214:1042 215:47 216:7288 217:3571 218:1700 219:416 220:2197 221:1309 222:936 223:3428 End of report