IPv4 R&E Routing Table Report 23:00 GMT Tue 10 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: 1033055 Prefixes after maximum aggregation (per Origin AS): 397138 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510342 Number of IPv4 prefixes with a valid ROA: 621943 Number of IPv4 prefixes with an invalid ROA: 600 Number of IPv4 prefixes with no ROA: 410512 Total ASes present in the Internet Routing Table: 77983 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66797 Origin ASes announcing only one prefix: 27250 Transit ASes present in the Internet Routing Table: 11186 Transit-only ASes present in the Internet Routing Table: 586 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: 1096 Number of instances of unregistered ASNs: 1125 Number of 32-bit ASNs allocated by the RIRs: 48988 Number of 32-bit ASNs visible in the Routing Table: 40005 Prefixes from 32-bit ASNs in the Routing Table: 223874 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: 406 Number of addresses announced to Internet: 3110377472 Equivalent to 185 /8s, 100 /16s and 152 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 336649 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281100 Total APNIC prefixes after maximum aggregation: 81731 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268333 Unique aggregates announced from the APNIC address blocks: 107179 APNIC Region origin ASes present in the Internet Routing Table: 15090 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4602 APNIC Region transit ASes present in the Internet Routing Table: 2040 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: 10663 Number of APNIC addresses announced to Internet: 751998720 Equivalent to 44 /8s, 210 /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: 302602 Total ARIN prefixes after maximum aggregation: 136575 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301386 Unique aggregates announced from the ARIN address blocks: 146703 ARIN Region origin ASes present in the Internet Routing Table: 19371 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7094 ARIN Region transit ASes present in the Internet Routing Table: 1926 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: 1350744832 Equivalent to 80 /8s, 130 /16s and 187 /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: 284745 Total RIPE prefixes after maximum aggregation: 140839 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287297 Unique aggregates announced from the RIPE address blocks: 187041 RIPE Region origin ASes present in the Internet Routing Table: 29270 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12153 RIPE Region transit ASes present in the Internet Routing Table: 4061 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: 13112 Number of RIPE addresses announced to Internet: 733367040 Equivalent to 43 /8s, 182 /16s and 75 /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: 126754 Total LACNIC prefixes after maximum aggregation: 30363 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122419 Unique aggregates announced from the LACNIC address blocks: 49626 LACNIC Region origin ASes present in the Internet Routing Table: 11348 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2673 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: 9365 Number of LACNIC addresses announced to Internet: 170930432 Equivalent to 10 /8s, 48 /16s and 49 /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: 36758 Total AfriNIC prefixes after maximum aggregation: 6924 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53214 Unique aggregates announced from the AfriNIC address blocks: 19434 AfriNIC Region origin ASes present in the Internet Routing Table: 1997 AfriNIC Prefixes per ASN: 26.65 AfriNIC Region origin ASes announcing only one prefix: 728 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: 1366 Number of AfriNIC addresses announced to Internet: 103139840 Equivalent to 6 /8s, 37 /16s and 202 /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 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4834 547 325 BBIL-AP BHARTI Airtel Ltd., IN 18403 4585 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4013 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3680 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3333 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2999 865 513 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2817 177 548 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 14470 41234 5548 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4645 308 1018 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 174 3475 8767 855 COGENT-174 - Cogent Communications, LLC, 396982 3292 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3141 54728 2392 DNIC-AS-00749 - United States Department 36352 2703 222 892 AS-COLOCROSSING - HostPapa, US 16625 2698 1176 2090 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 7229 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3825 355 2244 M247, RO 20940 3820 3393 112 AKAMAI-ASN1, NL 12389 3143 2319 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2669 193 1956 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1697 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1607 243 786 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 12753 3301 591 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2454 506 347 Mega Cable, S.A. de C.V., MX 11830 1956 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 1247 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 553 82 3 KENET-AS, KE 328608 548 46 168 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 14470 41234 5548 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12753 3301 591 UNINET, MX 12479 7229 1711 149 UNI2-AS, ES 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4834 547 325 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4645 308 1018 CABLEONE - CABLE ONE, INC., US 18403 4585 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 13726 13606 CHINAMOBILE-CN China Mobile Communications Grou 8151 12753 12162 UNINET, MX 12479 7229 7080 UNI2-AS, ES 7545 5974 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4585 4560 FPT-AS-AP FPT Telecom Company, VN 9498 4834 4509 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 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 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 /13:581 /14:1196 /15:2102 /16:13645 /17:8231 /18:13461 /19:25297 /20:45219 /21:52173 /22:113389 /23:106885 /24:650413 /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 6921 12753 UNINET, MX 12479 6164 7229 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3505 4645 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3047 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2592 14470 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) ---------------------------------------------- 1:2494 2:1588 3:996 4:5 5:5168 6:196 7:6 8:1499 9:28 11:172 12:1195 13:653 14:2661 15:459 16:177 17:398 18:916 20:603 21:4 22:188 23:8167 24:2744 25:2 27:2772 29:19 31:3406 32:30 34:90 35:290 36:4644 37:4461 38:10097 39:1267 40:241 41:4507 42:2079 43:3035 44:445 45:19953 46:4896 47:410 48:89 49:2188 50:2081 51:600 52:1310 54:280 55:1121 56:11 57:317 58:2365 59:1359 60:1174 61:3139 62:3113 63:1755 64:6231 65:2117 66:6024 67:3259 68:1497 69:4232 70:1045 71:612 72:3103 74:2976 75:1496 76:592 77:2840 78:1912 79:1790 80:2329 81:2212 82:3984 83:1444 84:2037 85:3819 86:1103 87:2256 88:1353 89:4686 90:810 91:8413 92:2842 93:3005 94:4303 95:4592 96:1441 97:312 98:947 99:805 100:67 101:1607 102:4440 103:32990 104:5392 105:791 106:924 107:2853 108:1203 109:4212 110:2297 111:4097 112:3148 113:1976 114:2181 115:2284 116:2179 117:3432 118:3024 119:2080 120:2682 121:1507 122:2975 123:2225 124:1690 125:3023 126:125 128:1655 129:942 130:1586 131:2422 132:788 133:463 134:1642 135:586 136:1597 137:1350 138:3147 139:1649 140:1783 141:1584 142:2512 143:2140 144:1733 145:629 146:2195 147:2147 148:2797 149:3042 150:1343 151:2695 152:2278 153:955 154:9554 155:2314 156:4404 157:2264 158:1506 159:2760 160:3832 161:1948 162:4011 163:2385 164:2034 165:2631 166:1302 167:2251 168:3981 169:875 170:5543 171:1105 172:4372 173:3451 174:884 175:1367 176:3825 177:4852 178:4337 179:2310 180:3155 181:4444 182:4000 183:2824 184:2014 185:21748 186:5728 187:4943 188:4563 189:4510 190:9746 191:1578 192:11416 193:9586 194:7837 195:5704 196:3309 197:3320 198:6091 199:6102 200:8061 201:6382 202:10652 203:10625 204:4723 205:3708 206:4459 207:3858 208:4371 209:5368 210:4726 211:2687 212:4995 213:4086 214:957 215:46 216:7251 217:3537 218:1679 219:420 220:2186 221:1312 222:935 223:3327 End of report