IPv4 R&E Routing Table Report 23:00 GMT Wed 15 Apr, 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: 1038559 Prefixes after maximum aggregation (per Origin AS): 398865 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 514081 Number of IPv4 prefixes with a valid ROA: 631667 Number of IPv4 prefixes with an invalid ROA: 436 Number of IPv4 prefixes with no ROA: 406456 Total ASes present in the Internet Routing Table: 78231 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 67035 Origin ASes announcing only one prefix: 27336 Transit ASes present in the Internet Routing Table: 11196 Transit-only ASes present in the Internet Routing Table: 584 Paths with bogon ASNs present in the IPv4 Routing Table: 39 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 993 Number of instances of unregistered ASNs: 1025 Number of 32-bit ASNs allocated by the RIRs: 49333 Number of 32-bit ASNs visible in the Routing Table: 40338 Prefixes from 32-bit ASNs in the Routing Table: 228140 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 414 Number of addresses announced to Internet: 3103390464 Equivalent to 184 /8s, 249 /16s and 251 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 338744 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282807 Total APNIC prefixes after maximum aggregation: 82311 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 269801 Unique aggregates announced from the APNIC address blocks: 107692 APNIC Region origin ASes present in the Internet Routing Table: 15127 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4611 APNIC Region transit ASes present in the Internet Routing Table: 2051 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10718 Number of APNIC addresses announced to Internet: 749030912 Equivalent to 44 /8s, 165 /16s and 78 /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: 302326 Total ARIN prefixes after maximum aggregation: 135668 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301848 Unique aggregates announced from the ARIN address blocks: 147042 ARIN Region origin ASes present in the Internet Routing Table: 19393 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7117 ARIN Region transit ASes present in the Internet Routing Table: 1918 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: 5549 Number of ARIN addresses announced to Internet: 1347971072 Equivalent to 80 /8s, 88 /16s and 104 /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: 287581 Total RIPE prefixes after maximum aggregation: 142456 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290158 Unique aggregates announced from the RIPE address blocks: 189273 RIPE Region origin ASes present in the Internet Routing Table: 29382 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12177 RIPE Region transit ASes present in the Internet Routing Table: 4069 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: 13258 Number of RIPE addresses announced to Internet: 733201920 Equivalent to 43 /8s, 179 /16s and 198 /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: 127952 Total LACNIC prefixes after maximum aggregation: 30823 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122831 Unique aggregates announced from the LACNIC address blocks: 50260 LACNIC Region origin ASes present in the Internet Routing Table: 11388 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2695 LACNIC Region transit ASes present in the Internet Routing Table: 2582 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: 9426 Number of LACNIC addresses announced to Internet: 169834752 Equivalent to 10 /8s, 31 /16s and 121 /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: 36900 Total AfriNIC prefixes after maximum aggregation: 6983 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53507 Unique aggregates announced from the AfriNIC address blocks: 19453 AfriNIC Region origin ASes present in the Internet Routing Table: 2021 AfriNIC Prefixes per ASN: 26.48 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1387 Number of AfriNIC addresses announced to Internet: 103158784 Equivalent to 6 /8s, 38 /16s and 20 /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 13841 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5913 828 496 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4913 550 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4592 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4066 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3683 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3487 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3358 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 3004 854 532 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2888 182 490 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 14703 41276 5673 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 75 SHAW - Shaw Communications, CA 174 3336 8766 825 COGENT-174 - Cogent Communications, LLC, 396982 3324 4860 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2720 222 903 AS-COLOCROSSING - HostPapa, US 30036 2676 367 299 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7173 1711 149 UNI2-AS, ES 39891 4939 304 71 ALJAWWALSTC-AS, SA 20940 3823 3389 110 AKAMAI-ASN1, NL 9009 3822 353 2243 M247, RO 12389 3144 2318 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2740 199 2020 CDNEXT, GB 34984 2449 365 573 TELLCOM-AS, TR 8452 1711 1852 14 TE-AS TE-AS, EG 203020 1663 252 833 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 12804 3315 613 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2435 506 345 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1436 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1372 2431 268 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 1073 2392 100 TIM SA, BR 22884 1056 71 361 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 2025 648 34 RAYA-AS, EG 36992 1860 1532 341 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1224 521 42 Vodafone-, EG 37069 1113 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 36914 555 82 3 KENET-AS, KE 15399 553 57 59 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 14703 41276 5673 AMAZON-02 - Amazon.com, Inc., US 9808 13841 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12804 3315 613 UNINET, MX 12479 7173 1711 149 UNI2-AS, ES 7545 5913 828 496 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4939 304 71 ALJAWWALSTC-AS, SA 9498 4913 550 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 18403 4592 347 26 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 13841 13720 CHINAMOBILE-CN China Mobile Communications Grou 8151 12804 12191 UNINET, MX 12479 7173 7024 UNI2-AS, ES 7545 5913 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4939 4868 ALJAWWALSTC-AS, SA 9498 4913 4583 BBIL-AP BHARTI Airtel Ltd., IN 18403 4592 4566 FPT-AS-AP FPT Telecom Company, VN 22773 4780 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4066 4037 VIETEL-AS-AP Viettel Group, VN 7155 3870 3785 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 /10:39 /11:95 /12:297 /13:582 /14:1186 /15:2097 /16:13572 /17:8242 /18:13241 /19:25332 /20:45598 /21:52191 /22:113299 /23:107021 /24:655737 /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 6985 12804 UNINET, MX 12479 6114 7173 UNI2-AS, ES 39891 3624 4939 ALJAWWALSTC-AS, SA 11492 3531 4670 CABLEONE - CABLE ONE, INC., US 6327 3505 3723 SHAW - Shaw Communications, CA 22773 3052 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2647 14703 AMAZON-02 - Amazon.com, Inc., US 30036 2328 2676 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2495 2:1838 3:1007 4:5 5:5188 6:197 7:6 8:1489 9:39 11:172 12:1185 13:694 14:2684 15:458 16:179 17:424 18:914 20:585 21:4 22:188 23:8136 24:2778 25:2 27:2816 28:1 29:19 31:3451 32:36 34:90 35:283 36:4684 37:4449 38:10188 39:1282 40:416 41:4504 42:2198 43:3096 44:445 45:19774 46:4836 47:405 48:125 49:2233 50:2018 51:627 52:1317 54:284 55:1119 56:11 57:320 58:2368 59:1386 60:1173 61:3155 62:3117 63:1719 64:6320 65:2132 66:6076 67:3258 68:1501 69:4203 70:1060 71:612 72:3203 74:3014 75:1487 76:588 77:2928 78:1977 79:1793 80:2350 81:2228 82:4065 83:1442 84:2128 85:3812 86:1092 87:2362 88:1341 89:4735 90:799 91:8420 92:2817 93:3007 94:4338 95:4651 96:1451 97:313 98:942 99:815 100:68 101:1630 102:4492 103:32972 104:5364 105:854 106:912 107:2884 108:1244 109:4222 110:2289 111:4111 112:3158 113:1971 114:2273 115:2278 116:2175 117:3504 118:2956 119:2106 120:2702 121:1542 122:2990 123:2266 124:1703 125:3008 126:126 128:1585 129:960 130:1629 131:2466 132:837 133:472 134:1667 135:610 136:1599 137:1342 138:3320 139:1633 140:1761 141:1724 142:2537 143:2107 144:1760 145:646 146:2200 147:2220 148:2774 149:3120 150:1372 151:2844 152:2315 153:1323 154:9874 155:2311 156:4450 157:2297 158:1536 159:2859 160:3825 161:1955 162:4021 163:2508 164:2033 165:2647 166:1272 167:2295 168:4022 169:854 170:5579 171:1128 172:4593 173:3486 174:883 175:1368 176:3873 177:4872 178:4349 179:2318 180:3199 181:4530 182:4009 183:2832 184:2031 185:21775 186:5783 187:4967 188:4572 189:4508 190:9843 191:1564 192:11446 193:9619 194:7874 195:5810 196:3345 197:3343 198:6114 199:6070 200:8058 201:6386 202:10681 203:10635 204:4782 205:3670 206:4490 207:3826 208:4377 209:5387 210:4709 211:2683 212:5087 213:4120 214:1044 215:47 216:7274 217:3563 218:1699 219:416 220:2199 221:1309 222:937 223:3421 End of report