IPv4 R&E Routing Table Report 23:00 GMT Sun 15 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: 1034648 Prefixes after maximum aggregation (per Origin AS): 397941 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511845 Number of IPv4 prefixes with a valid ROA: 623909 Number of IPv4 prefixes with an invalid ROA: 543 Number of IPv4 prefixes with no ROA: 410196 Total ASes present in the Internet Routing Table: 78043 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66866 Origin ASes announcing only one prefix: 27254 Transit ASes present in the Internet Routing Table: 11177 Transit-only ASes present in the Internet Routing Table: 588 Paths with bogon ASNs present in the IPv4 Routing Table: 41 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: 1078 Number of instances of unregistered ASNs: 1110 Number of 32-bit ASNs allocated by the RIRs: 48978 Number of 32-bit ASNs visible in the Routing Table: 40069 Prefixes from 32-bit ASNs in the Routing Table: 224706 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 396 Number of addresses announced to Internet: 3106970624 Equivalent to 185 /8s, 48 /16s and 156 /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: 337265 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281204 Total APNIC prefixes after maximum aggregation: 81796 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268327 Unique aggregates announced from the APNIC address blocks: 107211 APNIC Region origin ASes present in the Internet Routing Table: 15099 APNIC Prefixes per ASN: 17.77 APNIC Region origin ASes announcing only one prefix: 4603 APNIC Region transit ASes present in the Internet Routing Table: 2034 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: 10671 Number of APNIC addresses announced to Internet: 751948544 Equivalent to 44 /8s, 209 /16s and 211 /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: 303315 Total ARIN prefixes after maximum aggregation: 136874 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302053 Unique aggregates announced from the ARIN address blocks: 147109 ARIN Region origin ASes present in the Internet Routing Table: 19371 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7082 ARIN Region transit ASes present in the Internet Routing Table: 1924 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: 5504 Number of ARIN addresses announced to Internet: 1348787200 Equivalent to 80 /8s, 100 /16s and 220 /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: 285189 Total RIPE prefixes after maximum aggregation: 140985 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287766 Unique aggregates announced from the RIPE address blocks: 187441 RIPE Region origin ASes present in the Internet Routing Table: 29305 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12160 RIPE Region transit ASes present in the Internet Routing Table: 4062 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13151 Number of RIPE addresses announced to Internet: 732421376 Equivalent to 43 /8s, 167 /16s and 221 /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: 127025 Total LACNIC prefixes after maximum aggregation: 30663 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122721 Unique aggregates announced from the LACNIC address blocks: 50243 LACNIC Region origin ASes present in the Internet Routing Table: 11352 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2567 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: 9368 Number of LACNIC addresses announced to Internet: 170368000 Equivalent to 10 /8s, 39 /16s and 156 /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: 36837 Total AfriNIC prefixes after maximum aggregation: 6930 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 53385 Unique aggregates announced from the AfriNIC address blocks: 19493 AfriNIC Region origin ASes present in the Internet Routing Table: 2008 AfriNIC Prefixes per ASN: 26.59 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 383 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: 1375 Number of AfriNIC addresses announced to Internet: 103252992 Equivalent to 6 /8s, 39 /16s and 132 /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 13728 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5945 829 521 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4595 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4013 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3336 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3009 865 515 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2848 179 561 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 14444 41217 5562 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3101 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 396982 3292 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3238 8767 852 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2700 221 890 AS-COLOCROSSING - HostPapa, US 16625 2690 1172 2088 AKAMAI-AS - Akamai Technologies, Inc., 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 7203 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3829 355 2248 M247, RO 20940 3824 3393 112 AKAMAI-ASN1, NL 12389 3148 2319 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2670 193 1957 CDNEXT, GB 34984 2462 366 568 TELLCOM-AS, TR 8452 1697 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1606 243 787 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 12797 3302 596 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2455 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1454 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 1244 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2475 94 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 24835 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1229 521 44 Vodafone-, EG 37069 1109 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 15399 555 57 59 WANANCHI-, KE 36914 550 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 14444 41217 5562 AMAZON-02 - Amazon.com, Inc., US 9808 13728 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12797 3302 596 UNINET, MX 12479 7203 1711 149 UNI2-AS, ES 7545 5945 829 521 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3101 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4595 347 25 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 13728 13608 CHINAMOBILE-CN China Mobile Communications Grou 8151 12797 12201 UNINET, MX 12479 7203 7054 UNI2-AS, ES 7545 5945 5424 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4595 4570 FPT-AS-AP FPT Telecom Company, VN 9498 4846 4526 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4013 3984 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 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 395476 UNALLOCATED 12.36.194.0/24 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 /12:297 /13:580 /14:1189 /15:2091 /16:13581 /17:8229 /18:13220 /19:25303 /20:45598 /21:52155 /22:113546 /23:107082 /24:651612 /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 6960 12797 UNINET, MX 12479 6140 7203 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4647 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3047 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2580 14444 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 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) ---------------------------------------------- 1:2490 2:1619 3:1002 4:5 5:5197 6:196 7:6 8:1499 9:29 11:172 12:1194 13:644 14:2656 15:459 16:167 17:420 18:914 20:603 21:4 22:188 23:8190 24:2828 25:2 27:2820 28:1 29:19 31:3414 32:30 34:90 35:291 36:4628 37:4453 38:9963 39:1267 40:408 41:4530 42:2105 43:3037 44:445 45:19968 46:4907 47:408 48:89 49:2192 50:2068 51:601 52:1304 54:280 55:1107 56:11 57:317 58:2359 59:1362 60:1173 61:3111 62:3115 63:1752 64:6254 65:2118 66:6001 67:3260 68:1501 69:4211 70:1046 71:613 72:3119 74:2985 75:1495 76:592 77:2865 78:1910 79:1792 80:2336 81:2201 82:3987 83:1442 84:2041 85:3807 86:1102 87:2273 88:1352 89:4688 90:797 91:8433 92:2836 93:3007 94:4318 95:4630 96:1442 97:312 98:948 99:802 100:68 101:1607 102:4433 103:32990 104:5469 105:814 106:924 107:2853 108:1219 109:4215 110:2297 111:4068 112:3152 113:1981 114:2180 115:2277 116:2191 117:3432 118:3003 119:2069 120:2682 121:1508 122:2980 123:2252 124:1667 125:3009 126:125 128:1663 129:955 130:1585 131:2470 132:796 133:463 134:1644 135:589 136:1593 137:1344 138:3172 139:1639 140:1785 141:1589 142:2558 143:2153 144:1743 145:632 146:2196 147:2155 148:2739 149:3059 150:1338 151:2702 152:2247 153:954 154:9518 155:2310 156:4490 157:2271 158:1493 159:2773 160:3836 161:1949 162:4019 163:2398 164:2032 165:2627 166:1297 167:2251 168:3979 169:886 170:5555 171:1091 172:4596 173:3462 174:883 175:1368 176:3828 177:4825 178:4328 179:2328 180:3158 181:4459 182:4013 183:2823 184:2013 185:21784 186:5699 187:4973 188:4567 189:4538 190:9760 191:1574 192:11477 193:9588 194:7842 195:5726 196:3308 197:3317 198:6103 199:6107 200:8079 201:6385 202:10663 203:10625 204:4727 205:3722 206:4479 207:3861 208:4371 209:5387 210:4726 211:2686 212:4996 213:4089 214:1050 215:46 216:7266 217:3537 218:1677 219:420 220:2158 221:1313 222:935 223:3339 End of report