IPv4 R&E Routing Table Report 23:00 GMT Thu 30 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: 1044517 Prefixes after maximum aggregation (per Origin AS): 400295 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515636 Number of IPv4 prefixes with a valid ROA: 637643 Number of IPv4 prefixes with an invalid ROA: 542 Number of IPv4 prefixes with no ROA: 406332 Total ASes present in the Internet Routing Table: 78298 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67101 Origin ASes announcing only one prefix: 27381 Transit ASes present in the Internet Routing Table: 11197 Transit-only ASes present in the Internet Routing Table: 591 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1023 Number of instances of unregistered ASNs: 1052 Number of 32-bit ASNs allocated by the RIRs: 49561 Number of 32-bit ASNs visible in the Routing Table: 40445 Prefixes from 32-bit ASNs in the Routing Table: 229061 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 446 Number of addresses announced to Internet: 3104634880 Equivalent to 185 /8s, 12 /16s and 248 /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: 340572 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284924 Total APNIC prefixes after maximum aggregation: 82552 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271234 Unique aggregates announced from the APNIC address blocks: 107735 APNIC Region origin ASes present in the Internet Routing Table: 15122 APNIC Prefixes per ASN: 17.94 APNIC Region origin ASes announcing only one prefix: 4598 APNIC Region transit ASes present in the Internet Routing Table: 2052 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10726 Number of APNIC addresses announced to Internet: 749058816 Equivalent to 44 /8s, 165 /16s and 187 /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: 303434 Total ARIN prefixes after maximum aggregation: 136335 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302685 Unique aggregates announced from the ARIN address blocks: 147499 ARIN Region origin ASes present in the Internet Routing Table: 19402 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7120 ARIN Region transit ASes present in the Internet Routing Table: 1895 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5553 Number of ARIN addresses announced to Internet: 1348199168 Equivalent to 80 /8s, 91 /16s and 227 /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: 289407 Total RIPE prefixes after maximum aggregation: 143031 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 292459 Unique aggregates announced from the RIPE address blocks: 190769 RIPE Region origin ASes present in the Internet Routing Table: 29439 RIPE Prefixes per ASN: 9.93 RIPE Region origin ASes announcing only one prefix: 12208 RIPE Region transit ASes present in the Internet Routing Table: 4080 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13345 Number of RIPE addresses announced to Internet: 732983040 Equivalent to 43 /8s, 176 /16s and 111 /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: 128489 Total LACNIC prefixes after maximum aggregation: 30769 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123110 Unique aggregates announced from the LACNIC address blocks: 50297 LACNIC Region origin ASes present in the Internet Routing Table: 11381 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2719 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: 9430 Number of LACNIC addresses announced to Internet: 169950208 Equivalent to 10 /8s, 33 /16s and 60 /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: 37240 Total AfriNIC prefixes after maximum aggregation: 6989 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 54583 Unique aggregates announced from the AfriNIC address blocks: 18966 AfriNIC Region origin ASes present in the Internet Routing Table: 2025 AfriNIC Prefixes per ASN: 26.95 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 384 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: 1391 Number of AfriNIC addresses announced to Internet: 104240640 Equivalent to 6 /8s, 54 /16s and 150 /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 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5887 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4934 551 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4537 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3677 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3538 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3449 217 558 LCS-AS-AP LARUS Limited, HK 45899 3365 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2901 813 659 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14861 41294 5682 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3116 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 174 3403 8769 844 COGENT-174 - Cogent Communications, LLC, 396982 3340 4865 507 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2720 222 904 AS-COLOCROSSING - HostPapa, US 30036 2621 360 436 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 7171 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3859 355 2264 M247, RO 20940 3792 3389 110 AKAMAI-ASN1, NL 12389 3141 2321 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2763 202 2038 CDNEXT, GB 34984 2450 365 578 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 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 12839 3294 633 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2403 505 349 Mega Cable, S.A. de C.V., MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 11664 1446 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1374 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1229 379 23 INTEGRATEL PERU S.A.A., PE 22884 1071 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1071 2392 100 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 2027 649 36 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1272 389 16 LINKdotNET-AS, EG 36935 1243 522 44 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 562 53 158 Africa-on-Cloud-AS, ZA 15399 553 57 58 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 14861 41294 5682 AMAZON-02 - Amazon.com, Inc., US 9808 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12839 3294 633 UNINET, MX 12479 7171 1711 149 UNI2-AS, ES 7545 5887 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4934 551 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3116 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 18403 4537 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 13863 13742 CHINAMOBILE-CN China Mobile Communications Grou 8151 12839 12206 UNINET, MX 12479 7171 7022 UNI2-AS, ES 7545 5887 5404 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4934 4612 BBIL-AP BHARTI Airtel Ltd., IN 18403 4537 4511 FPT-AS-AP FPT Telecom Company, VN 22773 4780 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 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 /13:581 /14:1189 /15:2097 /16:13591 /17:8253 /18:13271 /19:25412 /20:45687 /21:52369 /22:113578 /23:107508 /24:660520 /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 7035 12839 UNINET, MX 12479 6112 7171 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3517 4653 CABLEONE - CABLE ONE, INC., US 6327 3507 3726 SHAW - Shaw Communications, CA 22773 3054 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2670 14861 AMAZON-02 - Amazon.com, Inc., US 30036 2275 2621 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) ---------------------------------------------- 1:2483 2:2016 3:1013 4:5 5:5183 6:198 7:6 8:1491 9:43 11:172 12:1185 13:719 14:2701 15:462 16:204 17:428 18:921 20:587 21:4 22:188 23:8163 24:2781 25:2 27:2807 28:1 29:19 31:3482 32:36 34:90 35:284 36:4744 37:4436 38:10162 39:1294 40:436 41:4561 42:2167 43:3162 44:452 45:19863 46:4864 47:438 48:127 49:2349 50:2011 51:690 52:1326 54:290 55:1204 56:11 57:323 58:2361 59:1380 60:1175 61:3159 62:3125 63:1708 64:6345 65:2146 66:6117 67:3267 68:1497 69:4215 70:1062 71:612 72:3209 74:3039 75:1501 76:584 77:2910 78:1994 79:1788 80:2347 81:2241 82:4135 83:1444 84:2126 85:3838 86:1087 87:2479 88:1333 89:4802 90:807 91:8464 92:2814 93:3016 94:4393 95:4721 96:1450 97:315 98:945 99:829 100:70 101:1624 102:4531 103:32927 104:5374 105:863 106:901 107:2891 108:1248 109:4246 110:2289 111:4127 112:3176 113:1971 114:2281 115:2312 116:2164 117:3484 118:3032 119:2084 120:2710 121:1542 122:2989 123:2276 124:1707 125:3017 126:126 128:1570 129:959 130:1637 131:2473 132:877 133:486 134:1673 135:605 136:1589 137:1345 138:3328 139:1613 140:1765 141:1733 142:2546 143:2112 144:1780 145:641 146:2185 147:2245 148:2802 149:3202 150:1384 151:2911 152:2555 153:1492 154:10210 155:2310 156:4761 157:2384 158:1568 159:2863 160:3830 161:1954 162:4044 163:2538 164:2455 165:2674 166:1283 167:2311 168:4019 169:873 170:5575 171:1134 172:4748 173:3461 174:880 175:1366 176:3883 177:4846 178:4382 179:2328 180:3199 181:4557 182:4021 183:2828 184:2007 185:21848 186:6037 187:5027 188:4556 189:4555 190:9845 191:1660 192:11463 193:9631 194:7889 195:5817 196:3365 197:3344 198:6117 199:6077 200:8107 201:6402 202:10654 203:10643 204:4763 205:3687 206:4608 207:3853 208:4375 209:5425 210:4730 211:2686 212:5087 213:4101 214:1043 215:47 216:7312 217:3611 218:1699 219:415 220:2192 221:1344 222:938 223:3441 End of report