IPv4 R&E Routing Table Report 23:00 GMT Sat 28 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: 1031781 Prefixes after maximum aggregation (per Origin AS): 396804 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510049 Number of IPv4 prefixes with a valid ROA: 620134 Number of IPv4 prefixes with an invalid ROA: 609 Number of IPv4 prefixes with no ROA: 411038 Total ASes present in the Internet Routing Table: 77917 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66773 Origin ASes announcing only one prefix: 27255 Transit ASes present in the Internet Routing Table: 11144 Transit-only ASes present in the Internet Routing Table: 582 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: 1124 Number of instances of unregistered ASNs: 1153 Number of 32-bit ASNs allocated by the RIRs: 48897 Number of 32-bit ASNs visible in the Routing Table: 39933 Prefixes from 32-bit ASNs in the Routing Table: 223099 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: 431 Number of addresses announced to Internet: 3113032192 Equivalent to 185 /8s, 141 /16s and 26 /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: 335415 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281218 Total APNIC prefixes after maximum aggregation: 81907 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268286 Unique aggregates announced from the APNIC address blocks: 107351 APNIC Region origin ASes present in the Internet Routing Table: 15048 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: 2031 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: 10634 Number of APNIC addresses announced to Internet: 752069120 Equivalent to 44 /8s, 211 /16s and 170 /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: 302720 Total ARIN prefixes after maximum aggregation: 136283 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301558 Unique aggregates announced from the ARIN address blocks: 147109 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: 7103 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: 5489 Number of ARIN addresses announced to Internet: 1352634112 Equivalent to 80 /8s, 159 /16s and 143 /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: 283534 Total RIPE prefixes after maximum aggregation: 140633 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 286206 Unique aggregates announced from the RIPE address blocks: 186142 RIPE Region origin ASes present in the Internet Routing Table: 29224 RIPE Prefixes per ASN: 9.79 RIPE Region origin ASes announcing only one prefix: 12155 RIPE Region transit ASes present in the Internet Routing Table: 4046 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: 13073 Number of RIPE addresses announced to Internet: 732894464 Equivalent to 43 /8s, 175 /16s and 21 /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: 126336 Total LACNIC prefixes after maximum aggregation: 30345 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122054 Unique aggregates announced from the LACNIC address blocks: 49626 LACNIC Region origin ASes present in the Internet Routing Table: 11345 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2672 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: 9359 Number of LACNIC addresses announced to Internet: 170923264 Equivalent to 10 /8s, 48 /16s and 21 /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: 36849 Total AfriNIC prefixes after maximum aggregation: 6920 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 53246 Unique aggregates announced from the AfriNIC address blocks: 19448 AfriNIC Region origin ASes present in the Internet Routing Table: 2008 AfriNIC Prefixes per ASN: 26.52 AfriNIC Region origin ASes announcing only one prefix: 735 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: 103267072 Equivalent to 6 /8s, 39 /16s and 187 /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 13725 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 4548 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 2984 864 513 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2799 176 553 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 14405 41220 5547 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 3738 8770 861 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 3817 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 1669 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1606 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 12753 3301 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 1957 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 1249 371 22 INTEGRATEL PERU S.A.A., PE 22884 1060 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1060 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 2012 648 34 RAYA-AS, EG 36992 1846 1532 339 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36935 1246 523 46 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1112 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 561 47 172 Africa-on-Cloud-AS, ZA 15399 546 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 14405 41220 5547 AMAZON-02 - Amazon.com, Inc., US 9808 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12753 3301 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 4548 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 13725 13605 CHINAMOBILE-CN China Mobile Communications Grou 8151 12753 12154 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 4548 4524 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 62191 UNALLOCATED 5.160.160.0/24 42337 RESPINA-AS, IR 62191 UNALLOCATED 5.160.161.0/24 42337 RESPINA-AS, IR 62191 UNALLOCATED 5.160.165.0/24 42337 RESPINA-AS, IR 62191 UNALLOCATED 5.160.180.0/24 42337 RESPINA-AS, IR 62191 UNALLOCATED 5.160.182.0/24 42337 RESPINA-AS, IR 62191 UNALLOCATED 5.160.183.0/24 42337 RESPINA-AS, IR 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 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 /12:298 /13:581 /14:1198 /15:2103 /16:13638 /17:8233 /18:13470 /19:25303 /20:45217 /21:52218 /22:113277 /23:106699 /24:649381 /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 6924 12753 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 2611 14405 AMAZON-02 - Amazon.com, Inc., US 30036 2311 2657 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 2:1490 3:982 4:9 5:5001 6:193 7:6 8:1504 9:27 11:172 12:1193 13:645 14:2661 15:455 16:177 17:398 18:922 20:600 21:4 22:188 23:8158 24:2632 25:2 27:2818 29:19 31:3394 32:30 34:84 35:287 36:4649 37:4445 38:10315 39:1267 40:424 41:4543 42:2030 43:3022 44:441 45:19914 46:4846 47:401 48:53 49:2191 50:2080 51:600 52:1282 54:267 55:1018 56:11 57:315 58:2365 59:1363 60:1175 61:3146 62:3118 63:1754 64:6232 65:2114 66:6017 67:3258 68:1499 69:4244 70:1039 71:612 72:3116 74:2957 75:1498 76:591 77:2788 78:1894 79:1791 80:2334 81:2157 82:4028 83:1450 84:2042 85:3810 86:1106 87:2203 88:1344 89:4703 90:810 91:8422 92:2850 93:3004 94:4302 95:4522 96:1447 97:312 98:948 99:801 100:67 101:1600 102:4448 103:32942 104:5485 105:796 106:923 107:2852 108:1191 109:4210 110:2296 111:4093 112:3140 113:1979 114:2177 115:2272 116:2184 117:3471 118:3029 119:2086 120:2678 121:1508 122:2967 123:2331 124:1678 125:3002 126:125 128:1663 129:945 130:1581 131:2387 132:787 133:464 134:1634 135:567 136:1628 137:1344 138:3113 139:1627 140:1781 141:1590 142:2499 143:2152 144:1723 145:630 146:2196 147:2150 148:2800 149:2998 150:1339 151:2678 152:2273 153:947 154:9620 155:2293 156:4381 157:2257 158:1503 159:2767 160:3737 161:1961 162:4003 163:2389 164:2019 165:2619 166:1288 167:2237 168:3948 169:885 170:5499 171:1119 172:4563 173:3444 174:885 175:1369 176:3793 177:4733 178:4344 179:2297 180:3200 181:4426 182:3971 183:2841 184:2007 185:21624 186:5640 187:4899 188:4562 189:4499 190:9738 191:1557 192:11410 193:9568 194:7841 195:5678 196:3286 197:3308 198:6115 199:6122 200:8035 201:6369 202:10596 203:10611 204:4727 205:3709 206:4450 207:3846 208:4368 209:5379 210:4726 211:2685 212:4972 213:4071 214:1075 215:52 216:7217 217:3516 218:1675 219:421 220:2198 221:1316 222:938 223:3320 End of report