IPv4 R&E Routing Table Report 23:00 GMT Mon 30 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: 1034901 Prefixes after maximum aggregation (per Origin AS): 398091 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510862 Number of IPv4 prefixes with a valid ROA: 625201 Number of IPv4 prefixes with an invalid ROA: 436 Number of IPv4 prefixes with no ROA: 409264 Total ASes present in the Internet Routing Table: 78083 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66888 Origin ASes announcing only one prefix: 27274 Transit ASes present in the Internet Routing Table: 11195 Transit-only ASes present in the Internet Routing Table: 591 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: 1040 Number of instances of unregistered ASNs: 1072 Number of 32-bit ASNs allocated by the RIRs: 49180 Number of 32-bit ASNs visible in the Routing Table: 40162 Prefixes from 32-bit ASNs in the Routing Table: 226207 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 360 Number of addresses announced to Internet: 3105146624 Equivalent to 185 /8s, 20 /16s and 199 /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: 337190 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282322 Total APNIC prefixes after maximum aggregation: 82520 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 269218 Unique aggregates announced from the APNIC address blocks: 106942 APNIC Region origin ASes present in the Internet Routing Table: 15120 APNIC Prefixes per ASN: 17.81 APNIC Region origin ASes announcing only one prefix: 4606 APNIC Region transit ASes present in the Internet Routing Table: 2043 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: 10692 Number of APNIC addresses announced to Internet: 751420160 Equivalent to 44 /8s, 201 /16s and 195 /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: 302206 Total ARIN prefixes after maximum aggregation: 135668 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301647 Unique aggregates announced from the ARIN address blocks: 146545 ARIN Region origin ASes present in the Internet Routing Table: 19391 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7109 ARIN Region transit ASes present in the Internet Routing Table: 1923 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 29 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5530 Number of ARIN addresses announced to Internet: 1347984128 Equivalent to 80 /8s, 88 /16s and 155 /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: 286049 Total RIPE prefixes after maximum aggregation: 141612 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 288345 Unique aggregates announced from the RIPE address blocks: 187683 RIPE Region origin ASes present in the Internet Routing Table: 29325 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12152 RIPE Region transit ASes present in the Internet Routing Table: 4068 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: 13204 Number of RIPE addresses announced to Internet: 732506880 Equivalent to 43 /8s, 169 /16s and 43 /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: 126993 Total LACNIC prefixes after maximum aggregation: 30663 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122547 Unique aggregates announced from the LACNIC address blocks: 50167 LACNIC Region origin ASes present in the Internet Routing Table: 11364 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2692 LACNIC Region transit ASes present in the Internet Routing Table: 2579 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: 9394 Number of LACNIC addresses announced to Internet: 169867520 Equivalent to 10 /8s, 31 /16s and 249 /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: 36291 Total AfriNIC prefixes after maximum aggregation: 6935 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 52784 Unique aggregates announced from the AfriNIC address blocks: 19215 AfriNIC Region origin ASes present in the Internet Routing Table: 1972 AfriNIC Prefixes per ASN: 26.77 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 376 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: 1342 Number of AfriNIC addresses announced to Internet: 103120128 Equivalent to 6 /8s, 37 /16s and 125 /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 13777 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5936 829 506 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4553 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3678 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3479 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3349 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3007 861 514 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2883 182 544 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 14524 41219 5583 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3101 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4655 309 1024 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3721 1321 75 SHAW - Shaw Communications, CA 396982 3296 4857 489 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3237 8763 823 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2703 222 892 AS-COLOCROSSING - HostPapa, US 30036 2661 364 329 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 7182 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 9009 3832 353 2244 M247, RO 20940 3820 3389 110 AKAMAI-ASN1, NL 12389 3145 2321 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2700 195 1983 CDNEXT, GB 34984 2454 365 569 TELLCOM-AS, TR 8452 1726 1852 14 TE-AS TE-AS, EG 203020 1632 248 807 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 12827 3294 608 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2461 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 11664 1460 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1372 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2393 95 TIM SA, BR 22884 1054 67 356 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 1855 1531 337 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36935 1246 523 46 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 36914 557 82 3 KENET-AS, KE 15399 541 57 56 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 14524 41219 5583 AMAZON-02 - Amazon.com, Inc., US 9808 13777 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12827 3294 608 UNINET, MX 12479 7182 1711 149 UNI2-AS, ES 7545 5936 829 506 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3101 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4655 309 1024 CABLEONE - CABLE ONE, INC., US 18403 4553 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 13777 13657 CHINAMOBILE-CN China Mobile Communications Grou 8151 12827 12219 UNINET, MX 12479 7182 7033 UNI2-AS, ES 7545 5936 5430 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4876 4559 BBIL-AP BHARTI Airtel Ltd., IN 18403 4553 4527 FPT-AS-AP FPT Telecom Company, VN 22773 4781 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4024 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 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 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 /13:582 /14:1190 /15:2092 /16:13569 /17:8231 /18:13211 /19:25299 /20:45311 /21:52097 /22:113457 /23:106942 /24:652458 /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 7002 12827 UNINET, MX 12479 6124 7182 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3515 4655 CABLEONE - CABLE ONE, INC., US 6327 3501 3721 SHAW - Shaw Communications, CA 22773 3051 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2609 14524 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2661 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) ---------------------------------------------- 1:2489 2:1713 3:1002 4:5 5:5185 6:196 7:6 8:1497 9:38 11:172 12:1186 13:687 14:2672 15:459 16:169 17:421 18:907 20:583 21:4 22:188 23:8192 24:2855 25:2 27:2821 28:1 29:19 31:3400 32:36 34:89 35:291 36:4656 37:4440 38:10005 39:1276 40:421 41:4466 42:2195 43:3061 44:449 45:19875 46:4874 47:409 48:105 49:2217 50:2037 51:618 52:1300 54:273 55:1115 56:11 57:314 58:2351 59:1373 60:1173 61:3133 62:3114 63:1748 64:6272 65:2135 66:6020 67:3255 68:1504 69:4220 70:1057 71:607 72:3156 74:3004 75:1488 76:591 77:2916 78:1932 79:1789 80:2334 81:2190 82:4018 83:1440 84:2083 85:3795 86:1091 87:2294 88:1350 89:4698 90:786 91:8405 92:2831 93:3010 94:4344 95:4628 96:1446 97:314 98:944 99:811 100:68 101:1621 102:4256 103:32990 104:5340 105:819 106:910 107:2860 108:1231 109:4206 110:2301 111:4114 112:3146 113:1977 114:2263 115:2288 116:2194 117:3461 118:2994 119:2097 120:2688 121:1543 122:2983 123:2233 124:1705 125:3016 126:125 128:1667 129:958 130:1600 131:2452 132:803 133:475 134:1644 135:607 136:1590 137:1351 138:3168 139:1635 140:1761 141:1723 142:2518 143:2102 144:1721 145:641 146:2196 147:2172 148:2726 149:3079 150:1360 151:2742 152:2305 153:986 154:9585 155:2311 156:4482 157:2284 158:1512 159:2816 160:3833 161:1955 162:4030 163:2460 164:2036 165:2614 166:1287 167:2267 168:3969 169:884 170:5540 171:1119 172:4527 173:3477 174:881 175:1378 176:3816 177:4791 178:4354 179:2296 180:3166 181:4490 182:4017 183:2831 184:2012 185:21718 186:5756 187:4947 188:4606 189:4516 190:9807 191:1549 192:11450 193:9575 194:7848 195:5795 196:3269 197:3153 198:6104 199:6086 200:8083 201:6416 202:10677 203:10631 204:4745 205:3737 206:4481 207:3846 208:4378 209:5432 210:4709 211:2687 212:4989 213:4098 214:1059 215:47 216:7291 217:3539 218:1688 219:423 220:2199 221:1307 222:928 223:3406 End of report