IPv4 R&E Routing Table Report 23:00 GMT Sat 07 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: 1032815 Prefixes after maximum aggregation (per Origin AS): 396742 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510175 Number of IPv4 prefixes with a valid ROA: 621646 Number of IPv4 prefixes with an invalid ROA: 595 Number of IPv4 prefixes with no ROA: 410574 Total ASes present in the Internet Routing Table: 78004 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66833 Origin ASes announcing only one prefix: 27271 Transit ASes present in the Internet Routing Table: 11171 Transit-only ASes present in the Internet Routing Table: 577 Paths with bogon ASNs present in the IPv4 Routing Table: 38 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: 1112 Number of instances of unregistered ASNs: 1141 Number of 32-bit ASNs allocated by the RIRs: 48973 Number of 32-bit ASNs visible in the Routing Table: 40015 Prefixes from 32-bit ASNs in the Routing Table: 223610 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: 423 Number of addresses announced to Internet: 3112046336 Equivalent to 185 /8s, 126 /16s and 15 /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: 336479 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281111 Total APNIC prefixes after maximum aggregation: 81734 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268365 Unique aggregates announced from the APNIC address blocks: 107371 APNIC Region origin ASes present in the Internet Routing Table: 15081 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4596 APNIC Region transit ASes present in the Internet Routing Table: 2033 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: 10655 Number of APNIC addresses announced to Internet: 751927040 Equivalent to 44 /8s, 209 /16s and 127 /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: 302378 Total ARIN prefixes after maximum aggregation: 136127 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301226 Unique aggregates announced from the ARIN address blocks: 146704 ARIN Region origin ASes present in the Internet Routing Table: 19381 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7106 ARIN Region transit ASes present in the Internet Routing Table: 1929 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: 5499 Number of ARIN addresses announced to Internet: 1352611584 Equivalent to 80 /8s, 159 /16s and 55 /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: 284806 Total RIPE prefixes after maximum aggregation: 140879 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287318 Unique aggregates announced from the RIPE address blocks: 186643 RIPE Region origin ASes present in the Internet Routing Table: 29279 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12158 RIPE Region transit ASes present in the Internet Routing Table: 4059 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 62 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13116 Number of RIPE addresses announced to Internet: 733419264 Equivalent to 43 /8s, 183 /16s and 23 /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: 126523 Total LACNIC prefixes after maximum aggregation: 30337 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122205 Unique aggregates announced from the LACNIC address blocks: 49593 LACNIC Region origin ASes present in the Internet Routing Table: 11350 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2568 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: 9366 Number of LACNIC addresses announced to Internet: 170900480 Equivalent to 10 /8s, 47 /16s and 188 /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: 36885 Total AfriNIC prefixes after maximum aggregation: 6950 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53278 Unique aggregates announced from the AfriNIC address blocks: 19487 AfriNIC Region origin ASes present in the Internet Routing Table: 2013 AfriNIC Prefixes per ASN: 26.47 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 385 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: 1379 Number of AfriNIC addresses announced to Internet: 102994688 Equivalent to 6 /8s, 35 /16s and 147 /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 4822 547 333 BBIL-AP BHARTI Airtel Ltd., IN 18403 4558 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 2994 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2778 174 535 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 14466 41237 5570 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 3460 8768 859 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 7229 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 12779 3302 592 UNINET, MX 10620 3452 457 1103 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 1289 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1109 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 554 82 3 KENET-AS, KE 328608 551 46 170 Africa-on-Cloud-AS, ZA 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 14466 41237 5570 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12779 3302 592 UNINET, MX 12479 7229 1711 149 UNI2-AS, ES 7545 5985 831 536 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4822 547 333 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 4558 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 12779 12187 UNINET, MX 12479 7229 7080 UNI2-AS, ES 7545 5985 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4558 4534 FPT-AS-AP FPT Telecom Company, VN 9498 4822 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 /12:298 /13:582 /14:1199 /15:2103 /16:13650 /17:8231 /18:13464 /19:25299 /20:45231 /21:52162 /22:113376 /23:106843 /24:650212 /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 12779 UNINET, MX 12479 6163 7229 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 2589 14466 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2663 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2505 2:1591 3:1003 4:5 5:5171 6:195 7:6 8:1499 9:28 11:172 12:1196 13:654 14:2660 15:457 16:177 17:398 18:918 20:603 21:4 22:188 23:8167 24:2656 25:2 27:2804 29:19 31:3400 32:30 34:90 35:290 36:4645 37:4469 38:10065 39:1267 40:241 41:4546 42:2047 43:3026 44:443 45:19950 46:4896 47:401 48:86 49:2185 50:2075 51:600 52:1295 54:279 55:1117 56:11 57:316 58:2366 59:1359 60:1175 61:3139 62:3119 63:1754 64:6226 65:2118 66:6005 67:3259 68:1500 69:4237 70:1045 71:612 72:3103 74:2967 75:1498 76:592 77:2843 78:1911 79:1793 80:2328 81:2217 82:3977 83:1450 84:2039 85:3820 86:1103 87:2256 88:1352 89:4684 90:811 91:8408 92:2853 93:3003 94:4324 95:4589 96:1451 97:312 98:949 99:799 100:67 101:1603 102:4460 103:33003 104:5410 105:780 106:924 107:2842 108:1202 109:4225 110:2293 111:4097 112:3147 113:1974 114:2184 115:2285 116:2181 117:3436 118:3023 119:2081 120:2680 121:1508 122:2972 123:2249 124:1690 125:3019 126:125 128:1656 129:949 130:1581 131:2409 132:787 133:463 134:1642 135:569 136:1600 137:1346 138:3137 139:1640 140:1790 141:1580 142:2514 143:2135 144:1732 145:639 146:2197 147:2145 148:2793 149:3032 150:1340 151:2681 152:2280 153:947 154:9617 155:2299 156:4376 157:2259 158:1506 159:2769 160:3817 161:1954 162:4004 163:2391 164:2032 165:2623 166:1296 167:2245 168:3955 169:881 170:5531 171:1110 172:4372 173:3446 174:886 175:1366 176:3823 177:4850 178:4332 179:2301 180:3160 181:4446 182:3993 183:2831 184:2012 185:21758 186:5668 187:4908 188:4568 189:4516 190:9752 191:1552 192:11411 193:9572 194:7835 195:5705 196:3309 197:3338 198:6106 199:6098 200:8017 201:6357 202:10647 203:10614 204:4735 205:3709 206:4460 207:3864 208:4374 209:5371 210:4727 211:2687 212:4997 213:4081 214:1051 215:46 216:7250 217:3535 218:1681 219:420 220:2198 221:1312 222:935 223:3327 End of report