IPv4 R&E Routing Table Report 23:00 GMT Wed 04 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: 1032465 Prefixes after maximum aggregation (per Origin AS): 396888 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510424 Number of IPv4 prefixes with a valid ROA: 621437 Number of IPv4 prefixes with an invalid ROA: 526 Number of IPv4 prefixes with no ROA: 410502 Total ASes present in the Internet Routing Table: 77986 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66833 Origin ASes announcing only one prefix: 27299 Transit ASes present in the Internet Routing Table: 11153 Transit-only ASes present in the Internet Routing Table: 581 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: 1113 Number of instances of unregistered ASNs: 1142 Number of 32-bit ASNs allocated by the RIRs: 48930 Number of 32-bit ASNs visible in the Routing Table: 39983 Prefixes from 32-bit ASNs in the Routing Table: 223314 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: 432 Number of addresses announced to Internet: 3113285120 Equivalent to 185 /8s, 144 /16s and 246 /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: 336026 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280981 Total APNIC prefixes after maximum aggregation: 81879 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268085 Unique aggregates announced from the APNIC address blocks: 107312 APNIC Region origin ASes present in the Internet Routing Table: 15069 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4602 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: 10645 Number of APNIC addresses announced to Internet: 752021760 Equivalent to 44 /8s, 210 /16s and 241 /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: 302739 Total ARIN prefixes after maximum aggregation: 136337 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301539 Unique aggregates announced from the ARIN address blocks: 147204 ARIN Region origin ASes present in the Internet Routing Table: 19384 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7111 ARIN Region transit ASes present in the Internet Routing Table: 1925 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: 5498 Number of ARIN addresses announced to Internet: 1352630016 Equivalent to 80 /8s, 159 /16s and 127 /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: 284525 Total RIPE prefixes after maximum aggregation: 140658 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287134 Unique aggregates announced from the RIPE address blocks: 186504 RIPE Region origin ASes present in the Internet Routing Table: 29269 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12170 RIPE Region transit ASes present in the Internet Routing Table: 4052 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13099 Number of RIPE addresses announced to Internet: 733245952 Equivalent to 43 /8s, 180 /16s and 114 /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: 126222 Total LACNIC prefixes after maximum aggregation: 30366 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 121940 Unique aggregates announced from the LACNIC address blocks: 49558 LACNIC Region origin ASes present in the Internet Routing Table: 11350 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2547 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: 170923008 Equivalent to 10 /8s, 48 /16s and 20 /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: 6933 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 53335 Unique aggregates announced from the AfriNIC address blocks: 19462 AfriNIC Region origin ASes present in the Internet Routing Table: 2009 AfriNIC Prefixes per ASN: 26.55 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 389 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: 1376 Number of AfriNIC addresses announced to Internet: 103220992 Equivalent to 6 /8s, 39 /16s and 7 /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 5992 831 542 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4815 547 332 BBIL-AP BHARTI Airtel Ltd., IN 18403 4570 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4024 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3661 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3325 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2985 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2778 174 546 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 14448 41237 5568 AMAZON-02 - Amazon.com, Inc., US 22773 4784 3103 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 174 3462 8767 861 COGENT-174 - Cogent Communications, LLC, 396982 3289 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2726 1188 2102 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2706 222 887 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 3834 3393 112 AKAMAI-ASN1, NL 9009 3825 355 2250 M247, RO 12389 3142 2317 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2659 192 1950 CDNEXT, GB 34984 2463 366 573 TELLCOM-AS, TR 8452 1695 1852 14 TE-AS TE-AS, EG 203020 1609 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 12764 3303 596 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2452 505 348 Mega Cable, S.A. de C.V., MX 11830 1955 369 65 Instituto Costarricense de Electricidad y 11664 1444 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1377 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1250 371 22 INTEGRATEL PERU S.A.A., PE 26615 1059 2475 94 TIM SA, BR 22884 1058 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 555 46 172 Africa-on-Cloud-AS, ZA 15399 545 56 55 WANANCHI-, 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 14448 41237 5568 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12764 3303 596 UNINET, MX 12479 7230 1711 149 UNI2-AS, ES 7545 5992 831 542 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4815 547 332 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 3103 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US 18403 4570 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 12764 12168 UNINET, MX 12479 7230 7081 UNI2-AS, ES 7545 5992 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4570 4546 FPT-AS-AP FPT Telecom Company, VN 9498 4815 4483 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4024 3995 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 /14:1198 /15:2104 /16:13653 /17:8236 /18:13465 /19:25313 /20:45234 /21:52202 /22:113342 /23:106754 /24:649917 /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 6932 12764 UNINET, MX 12479 6162 7230 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3500 4640 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3048 4784 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2605 14448 AMAZON-02 - Amazon.com, Inc., US 30036 2315 2662 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) ---------------------------------------------- 1:2508 2:1589 3:981 4:5 5:5155 6:194 7:6 8:1501 9:28 11:172 12:1195 13:652 14:2655 15:458 16:177 17:398 18:918 20:601 21:4 22:188 23:8161 24:2654 25:2 27:2807 29:19 31:3405 32:30 34:84 35:289 36:4648 37:4446 38:10086 39:1267 40:423 41:4525 42:2044 43:3028 44:441 45:19919 46:4889 47:401 48:86 49:2185 50:2065 51:600 52:1290 54:278 55:1117 56:11 57:316 58:2370 59:1360 60:1175 61:3142 62:3117 63:1755 64:6205 65:2118 66:6015 67:3257 68:1500 69:4242 70:1046 71:612 72:3105 74:2964 75:1497 76:590 77:2847 78:1911 79:1786 80:2332 81:2215 82:3993 83:1448 84:2040 85:3819 86:1106 87:2245 88:1347 89:4680 90:810 91:8415 92:2851 93:3004 94:4310 95:4577 96:1451 97:312 98:949 99:802 100:67 101:1600 102:4467 103:32939 104:5489 105:790 106:924 107:2857 108:1189 109:4232 110:2297 111:4092 112:3147 113:1982 114:2178 115:2279 116:2183 117:3439 118:3013 119:2083 120:2679 121:1508 122:2967 123:2250 124:1680 125:3001 126:125 128:1653 129:948 130:1582 131:2421 132:783 133:463 134:1644 135:569 136:1596 137:1350 138:3124 139:1633 140:1786 141:1581 142:2476 143:2142 144:1727 145:638 146:2197 147:2159 148:2794 149:3009 150:1337 151:2675 152:2278 153:950 154:9672 155:2297 156:4390 157:2259 158:1496 159:2767 160:3816 161:1957 162:4000 163:2385 164:2034 165:2623 166:1297 167:2242 168:3949 169:884 170:5527 171:1112 172:4542 173:3440 174:884 175:1366 176:3806 177:4700 178:4329 179:2277 180:3149 181:4442 182:3979 183:2836 184:2012 185:21728 186:5651 187:4888 188:4565 189:4499 190:9736 191:1555 192:11384 193:9571 194:7832 195:5695 196:3311 197:3329 198:6110 199:6102 200:8024 201:6354 202:10622 203:10604 204:4741 205:3710 206:4461 207:3847 208:4369 209:5363 210:4727 211:2684 212:4979 213:4079 214:1055 215:46 216:7237 217:3529 218:1681 219:420 220:2190 221:1313 222:937 223:3327 End of report