IPv4 R&E Routing Table Report 23:00 GMT Fri 06 Mar, 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: 1032792 Prefixes after maximum aggregation (per Origin AS): 396756 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510180 Number of IPv4 prefixes with a valid ROA: 621742 Number of IPv4 prefixes with an invalid ROA: 601 Number of IPv4 prefixes with no ROA: 410449 Total ASes present in the Internet Routing Table: 78007 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66842 Origin ASes announcing only one prefix: 27278 Transit ASes present in the Internet Routing Table: 11165 Transit-only ASes present in the Internet Routing Table: 573 Paths with bogon ASNs present in the IPv4 Routing Table: 45 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1111 Number of instances of unregistered ASNs: 1140 Number of 32-bit ASNs allocated by the RIRs: 48965 Number of 32-bit ASNs visible in the Routing Table: 40010 Prefixes from 32-bit ASNs in the Routing Table: 223723 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: 425 Number of addresses announced to Internet: 3113102592 Equivalent to 185 /8s, 142 /16s and 45 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 336477 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281149 Total APNIC prefixes after maximum aggregation: 81738 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268396 Unique aggregates announced from the APNIC address blocks: 107328 APNIC Region origin ASes present in the Internet Routing Table: 15080 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 4603 APNIC Region transit ASes present in the Internet Routing Table: 2029 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10653 Number of APNIC addresses announced to Internet: 751930624 Equivalent to 44 /8s, 209 /16s and 141 /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: 302350 Total ARIN prefixes after maximum aggregation: 136127 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301218 Unique aggregates announced from the ARIN address blocks: 146670 ARIN Region origin ASes present in the Internet Routing Table: 19387 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7109 ARIN Region transit ASes present in the Internet Routing Table: 1930 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5502 Number of ARIN addresses announced to Internet: 1352528384 Equivalent to 80 /8s, 157 /16s and 242 /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: 284815 Total RIPE prefixes after maximum aggregation: 140857 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287314 Unique aggregates announced from the RIPE address blocks: 186601 RIPE Region origin ASes present in the Internet Routing Table: 29280 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12157 RIPE Region transit ASes present in the Internet Routing Table: 4056 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13111 Number of RIPE addresses announced to Internet: 733396224 Equivalent to 43 /8s, 182 /16s and 189 /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: 126547 Total LACNIC prefixes after maximum aggregation: 30367 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122229 Unique aggregates announced from the LACNIC address blocks: 49724 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2564 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: 9367 Number of LACNIC addresses announced to Internet: 170926336 Equivalent to 10 /8s, 48 /16s and 33 /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: 36820 Total AfriNIC prefixes after maximum aggregation: 6953 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53210 Unique aggregates announced from the AfriNIC address blocks: 19480 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.45 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1377 Number of AfriNIC addresses announced to Internet: 103081216 Equivalent to 6 /8s, 36 /16s and 229 /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 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5985 831 536 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4821 547 332 BBIL-AP BHARTI Airtel Ltd., IN 18403 4581 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4047 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3669 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3329 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2993 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2763 173 540 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 14472 41236 5572 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3101 369 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4643 308 1019 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 174 3455 8768 858 COGENT-174 - Cogent Communications, LLC, 396982 3300 4856 486 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2725 1187 2101 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2703 222 892 AS-COLOCROSSING - HostPapa, 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 7230 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3836 3393 112 AKAMAI-ASN1, NL 9009 3821 355 2246 M247, RO 12389 3146 2319 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2665 193 1952 CDNEXT, GB 34984 2462 366 573 TELLCOM-AS, TR 8452 1695 1852 14 TE-AS TE-AS, EG 203020 1611 243 786 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 12778 3301 593 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2455 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1249 371 22 INTEGRATEL PERU S.A.A., PE 26615 1060 2475 94 TIM SA, BR 22884 1059 67 360 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 2044 648 34 RAYA-AS, EG 36992 1847 1532 340 ETISALAT-MISR, EG 24863 1290 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 551 46 170 Africa-on-Cloud-AS, ZA 36914 546 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 14472 41236 5572 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12778 3301 593 UNINET, MX 12479 7230 1711 149 UNI2-AS, ES 7545 5985 831 536 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4821 547 332 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3101 369 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4643 308 1019 CABLEONE - CABLE ONE, INC., US 18403 4581 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 13726 13606 CHINAMOBILE-CN China Mobile Communications Grou 8151 12778 12185 UNINET, MX 12479 7230 7081 UNI2-AS, ES 7545 5985 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4581 4557 FPT-AS-AP FPT Telecom Company, VN 9498 4821 4489 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4047 4018 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 18712 EVERFAST-KC - Everfast 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 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 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 /10:40 /11:95 /12:299 /13:583 /14:1199 /15:2103 /16:13651 /17:8233 /18:13464 /19:25299 /20:45237 /21:52154 /22:113381 /23:106792 /24:650232 /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 6944 12778 UNINET, MX 12479 6164 7230 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3503 4643 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3048 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2593 14472 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2663 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2502 2:1595 3:1003 4:5 5:5167 6:192 7:6 8:1499 9:28 11:172 12:1195 13:654 14:2661 15:457 16:177 17:398 18:919 20:603 21:4 22:188 23:8169 24:2655 25:2 27:2806 29:19 31:3403 32:30 34:90 35:290 36:4644 37:4464 38:10070 39:1267 40:245 41:4538 42:2056 43:3027 44:441 45:19944 46:4892 47:401 48:86 49:2185 50:2075 51:600 52:1295 54:279 55:1117 56:11 57:316 58:2366 59:1358 60:1175 61:3140 62:3117 63:1754 64:6225 65:2121 66:6011 67:3258 68:1501 69:4236 70:1044 71:612 72:3102 74:2972 75:1499 76:592 77:2843 78:1911 79:1791 80:2329 81:2216 82:3984 83:1452 84:2039 85:3821 86:1103 87:2257 88:1353 89:4688 90:810 91:8412 92:2853 93:3005 94:4326 95:4593 96:1451 97:312 98:950 99:799 100:67 101:1601 102:4463 103:32982 104:5404 105:792 106:924 107:2846 108:1202 109:4226 110:2293 111:4095 112:3147 113:1980 114:2184 115:2281 116:2176 117:3436 118:3025 119:2087 120:2681 121:1505 122:2972 123:2319 124:1690 125:3014 126:125 128:1657 129:950 130:1581 131:2408 132:786 133:463 134:1643 135:568 136:1600 137:1345 138:3142 139:1634 140:1791 141:1581 142:2512 143:2132 144:1729 145:638 146:2199 147:2145 148:2794 149:3029 150:1342 151:2678 152:2279 153:951 154:9613 155:2292 156:4376 157:2260 158:1500 159:2769 160:3821 161:1954 162:4003 163:2392 164:2034 165:2624 166:1300 167:2246 168:3951 169:883 170:5533 171:1110 172:4373 173:3447 174:886 175:1366 176:3824 177:4843 178:4329 179:2301 180:3160 181:4448 182:3990 183:2834 184:2012 185:21751 186:5673 187:4907 188:4568 189:4522 190:9745 191:1558 192:11418 193:9577 194:7841 195:5706 196:3302 197:3300 198:6099 199:6103 200:8021 201:6367 202:10645 203:10605 204:4737 205:3706 206:4458 207:3862 208:4374 209:5369 210:4720 211:2685 212:4992 213:4080 214:1047 215:46 216:7249 217:3537 218:1681 219:420 220:2198 221:1312 222:935 223:3325 End of report