IPv4 R&E Routing Table Report 23:00 GMT Fri 27 Feb, 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: 1032729 Prefixes after maximum aggregation (per Origin AS): 397109 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510489 Number of IPv4 prefixes with a valid ROA: 621236 Number of IPv4 prefixes with an invalid ROA: 531 Number of IPv4 prefixes with no ROA: 410962 Total ASes present in the Internet Routing Table: 77981 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66829 Origin ASes announcing only one prefix: 27265 Transit ASes present in the Internet Routing Table: 11152 Transit-only ASes present in the Internet Routing Table: 581 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: 1109 Number of instances of unregistered ASNs: 1138 Number of 32-bit ASNs allocated by the RIRs: 48879 Number of 32-bit ASNs visible in the Routing Table: 39949 Prefixes from 32-bit ASNs in the Routing Table: 223302 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: 437 Number of addresses announced to Internet: 3113385472 Equivalent to 185 /8s, 146 /16s and 126 /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: 336281 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281148 Total APNIC prefixes after maximum aggregation: 81880 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268275 Unique aggregates announced from the APNIC address blocks: 107362 APNIC Region origin ASes present in the Internet Routing Table: 15044 APNIC Prefixes per ASN: 17.83 APNIC Region origin ASes announcing only one prefix: 4590 APNIC Region transit ASes present in the Internet Routing Table: 2030 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: 10626 Number of APNIC addresses announced to Internet: 752166400 Equivalent to 44 /8s, 213 /16s and 38 /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: 302967 Total ARIN prefixes after maximum aggregation: 136344 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301813 Unique aggregates announced from the ARIN address blocks: 147131 ARIN Region origin ASes present in the Internet Routing Table: 19386 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7099 ARIN Region transit ASes present in the Internet Routing Table: 1927 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: 5488 Number of ARIN addresses announced to Internet: 1352608512 Equivalent to 80 /8s, 159 /16s and 43 /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: 284733 Total RIPE prefixes after maximum aggregation: 140914 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287341 Unique aggregates announced from the RIPE address blocks: 186575 RIPE Region origin ASes present in the Internet Routing Table: 29289 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12166 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: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13101 Number of RIPE addresses announced to Internet: 733196288 Equivalent to 43 /8s, 179 /16s and 176 /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: 126210 Total LACNIC prefixes after maximum aggregation: 30334 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 121958 Unique aggregates announced from the LACNIC address blocks: 49631 LACNIC Region origin ASes present in the Internet Routing Table: 11346 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2553 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: 9356 Number of LACNIC addresses announced to Internet: 170920448 Equivalent to 10 /8s, 48 /16s and 10 /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: 36562 Total AfriNIC prefixes after maximum aggregation: 6925 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 52905 Unique aggregates announced from the AfriNIC address blocks: 19411 AfriNIC Region origin ASes present in the Internet Routing Table: 2010 AfriNIC Prefixes per ASN: 26.32 AfriNIC Region origin ASes announcing only one prefix: 737 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: 1378 Number of AfriNIC addresses announced to Internet: 103247360 Equivalent to 6 /8s, 39 /16s and 110 /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 13728 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5994 831 544 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4807 546 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4543 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4050 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3470 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3324 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2981 863 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2763 173 551 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 14396 41220 5556 AMAZON-02 - Amazon.com, Inc., US 22773 4784 3103 370 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 174 3735 8769 860 COGENT-174 - Cogent Communications, LLC, 6327 3709 1321 71 SHAW - Shaw Communications, CA 396982 3289 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3141 54728 2392 DNIC-AS-00749 - United States Department 16625 2738 1191 2104 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2700 221 890 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 7232 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3834 3393 112 AKAMAI-ASN1, NL 9009 3818 355 2243 M247, RO 12389 3144 2318 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2658 192 1949 CDNEXT, GB 34984 2469 366 576 TELLCOM-AS, TR 8452 1687 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 782 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 12746 3299 599 UNINET, MX 10620 3451 457 1105 Telmex Colombia S.A., CO 13999 2453 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1442 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 22884 1060 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1059 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 1915 612 30 RAYA-AS, EG 36992 1846 1532 339 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1151 522 46 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 561 47 172 Africa-on-Cloud-AS, ZA 36914 532 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 14396 41220 5556 AMAZON-02 - Amazon.com, Inc., US 9808 13728 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12746 3299 599 UNINET, MX 12479 7232 1711 149 UNI2-AS, ES 7545 5994 831 544 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4807 546 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 3103 370 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US 18403 4543 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 13728 13608 CHINAMOBILE-CN China Mobile Communications Grou 8151 12746 12147 UNINET, MX 12479 7232 7083 UNI2-AS, ES 7545 5994 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4543 4519 FPT-AS-AP FPT Telecom Company, VN 9498 4807 4477 BBIL-AP BHARTI Airtel Ltd., IN 22773 4784 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4050 4021 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 /13:581 /14:1198 /15:2103 /16:13639 /17:8232 /18:13467 /19:25313 /20:45204 /21:52200 /22:113220 /23:106711 /24:650397 /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 12746 UNINET, MX 12479 6162 7232 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3500 4640 CABLEONE - CABLE ONE, INC., US 6327 3488 3709 SHAW - Shaw Communications, CA 22773 3049 4784 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2604 14396 AMAZON-02 - Amazon.com, Inc., US 30036 2309 2655 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2231 3451 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) ---------------------------------------------- 1:2507 2:1593 3:973 4:9 5:5172 6:193 7:6 8:1493 9:27 11:172 12:1193 13:658 14:2653 15:455 16:177 17:398 18:923 20:600 21:4 22:188 23:8156 24:2632 25:2 27:2819 29:19 31:3418 32:30 34:84 35:288 36:4649 37:4451 38:10308 39:1268 40:424 41:4514 42:2024 43:3022 44:439 45:19912 46:4906 47:401 48:53 49:2192 50:2084 51:600 52:1282 54:267 55:1114 56:11 57:314 58:2365 59:1362 60:1175 61:3147 62:3129 63:1755 64:6237 65:2114 66:6018 67:3259 68:1497 69:4240 70:1039 71:612 72:3122 74:2962 75:1501 76:591 77:2821 78:1909 79:1788 80:2332 81:2223 82:4033 83:1449 84:2043 85:3831 86:1104 87:2245 88:1347 89:4708 90:810 91:8448 92:2862 93:3008 94:4324 95:4585 96:1445 97:312 98:950 99:801 100:67 101:1600 102:4448 103:32950 104:5494 105:793 106:923 107:2854 108:1199 109:4228 110:2296 111:4095 112:3139 113:1979 114:2176 115:2272 116:2186 117:3471 118:3029 119:2086 120:2679 121:1508 122:2967 123:2336 124:1678 125:3002 126:125 128:1659 129:947 130:1572 131:2398 132:787 133:464 134:1634 135:567 136:1627 137:1344 138:3109 139:1629 140:1783 141:1580 142:2526 143:2153 144:1725 145:637 146:2197 147:2151 148:2780 149:2987 150:1336 151:2673 152:2274 153:947 154:9602 155:2297 156:4375 157:2256 158:1502 159:2769 160:3735 161:1960 162:4002 163:2385 164:2022 165:2620 166:1287 167:2235 168:3947 169:886 170:5515 171:1119 172:4576 173:3452 174:885 175:1369 176:3806 177:4730 178:4362 179:2289 180:3186 181:4426 182:3971 183:2841 184:2007 185:21756 186:5628 187:4897 188:4564 189:4498 190:9737 191:1557 192:11440 193:9573 194:7856 195:5686 196:3274 197:3295 198:6101 199:6123 200:8047 201:6368 202:10616 203:10604 204:4725 205:3718 206:4451 207:3846 208:4369 209:5385 210:4728 211:2684 212:4992 213:4074 214:1077 215:54 216:7220 217:3525 218:1675 219:421 220:2199 221:1315 222:938 223:3321 End of report