IPv4 R&E Routing Table Report 23:00 GMT Thu 26 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: 1032579 Prefixes after maximum aggregation (per Origin AS): 397061 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510306 Number of IPv4 prefixes with a valid ROA: 620903 Number of IPv4 prefixes with an invalid ROA: 568 Number of IPv4 prefixes with no ROA: 411108 Total ASes present in the Internet Routing Table: 77973 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66813 Origin ASes announcing only one prefix: 27264 Transit ASes present in the Internet Routing Table: 11160 Transit-only ASes present in the Internet Routing Table: 583 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: 1111 Number of instances of unregistered ASNs: 1140 Number of 32-bit ASNs allocated by the RIRs: 48856 Number of 32-bit ASNs visible in the Routing Table: 39949 Prefixes from 32-bit ASNs in the Routing Table: 223216 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: 438 Number of addresses announced to Internet: 3113614592 Equivalent to 185 /8s, 149 /16s and 253 /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: 336184 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281140 Total APNIC prefixes after maximum aggregation: 81878 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268301 Unique aggregates announced from the APNIC address blocks: 107355 APNIC Region origin ASes present in the Internet Routing Table: 15053 APNIC Prefixes per ASN: 17.82 APNIC Region origin ASes announcing only one prefix: 4592 APNIC Region transit ASes present in the Internet Routing Table: 2033 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: 10638 Number of APNIC addresses announced to Internet: 752346112 Equivalent to 44 /8s, 215 /16s and 228 /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: 303028 Total ARIN prefixes after maximum aggregation: 136332 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301830 Unique aggregates announced from the ARIN address blocks: 147072 ARIN Region origin ASes present in the Internet Routing Table: 19382 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7097 ARIN Region transit ASes present in the Internet Routing Table: 1929 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: 5491 Number of ARIN addresses announced to Internet: 1352735744 Equivalent to 80 /8s, 161 /16s and 28 /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: 284622 Total RIPE prefixes after maximum aggregation: 140865 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287218 Unique aggregates announced from the RIPE address blocks: 186468 RIPE Region origin ASes present in the Internet Routing Table: 29266 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12152 RIPE Region transit ASes present in the Internet Routing Table: 4059 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: 13084 Number of RIPE addresses announced to Internet: 733135360 Equivalent to 43 /8s, 178 /16s and 194 /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: 126058 Total LACNIC prefixes after maximum aggregation: 30351 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 121831 Unique aggregates announced from the LACNIC address blocks: 49634 LACNIC Region origin ASes present in the Internet Routing Table: 11351 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2686 LACNIC Region transit ASes present in the Internet Routing Table: 2556 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: 170921984 Equivalent to 10 /8s, 48 /16s and 16 /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: 36620 Total AfriNIC prefixes after maximum aggregation: 6922 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 52961 Unique aggregates announced from the AfriNIC address blocks: 19397 AfriNIC Region origin ASes present in the Internet Routing Table: 2011 AfriNIC Prefixes per ASN: 26.34 AfriNIC Region origin ASes announcing only one prefix: 737 AfriNIC Region transit ASes present in the Internet Routing Table: 378 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: 1377 Number of AfriNIC addresses announced to Internet: 103227904 Equivalent to 6 /8s, 39 /16s and 34 /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 13727 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5994 831 544 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4802 546 329 BBIL-AP BHARTI Airtel Ltd., IN 18403 4546 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4071 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3471 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3324 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2978 863 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2752 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 14419 41240 5559 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3101 368 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 3740 8769 862 COGENT-174 - Cogent Communications, LLC, 6327 3709 1321 71 SHAW - Shaw Communications, CA 396982 3288 4856 484 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2739 1191 2104 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2698 221 889 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 3830 3393 112 AKAMAI-ASN1, NL 9009 3818 355 2243 M247, RO 12389 3144 2318 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2657 192 1948 CDNEXT, GB 34984 2438 364 571 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 12730 3298 598 UNINET, MX 10620 3451 457 1105 Telmex Colombia S.A., CO 13999 2455 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1439 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 26615 1058 2475 94 TIM SA, BR 22884 1056 67 359 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 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 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 552 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 14419 41240 5559 AMAZON-02 - Amazon.com, Inc., US 9808 13727 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12730 3298 598 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 4802 546 329 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US 18403 4546 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 13727 13607 CHINAMOBILE-CN China Mobile Communications Grou 8151 12730 12132 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 4546 4522 FPT-AS-AP FPT Telecom Company, VN 9498 4802 4473 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 4411 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4071 4042 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 /16:13640 /17:8214 /18:13476 /19:25313 /20:45208 /21:52208 /22:113263 /23:106709 /24:650202 /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 6913 12730 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 3047 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2612 14419 AMAZON-02 - Amazon.com, Inc., US 30036 2309 2654 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) ---------------------------------------------- 1:2506 2:1600 3:979 4:9 5:5160 6:193 7:6 8:1492 9:27 11:172 12:1194 13:650 14:2653 15:456 16:177 17:398 18:924 20:600 21:4 22:188 23:8159 24:2632 25:2 27:2821 29:19 31:3420 32:30 34:84 35:288 36:4650 37:4448 38:10310 39:1268 40:426 41:4540 42:2027 43:3017 44:438 45:19903 46:4910 47:401 48:38 49:2192 50:2076 51:600 52:1282 54:266 55:1113 56:11 57:315 58:2365 59:1359 60:1175 61:3151 62:3126 63:1764 64:6235 65:2108 66:6022 67:3257 68:1497 69:4244 70:1039 71:612 72:3123 74:2966 75:1501 76:591 77:2827 78:1913 79:1789 80:2337 81:2222 82:4029 83:1453 84:2042 85:3830 86:1105 87:2245 88:1347 89:4704 90:810 91:8445 92:2864 93:3009 94:4325 95:4583 96:1446 97:312 98:950 99:799 100:67 101:1600 102:4439 103:32956 104:5541 105:780 106:923 107:2855 108:1203 109:4213 110:2297 111:4093 112:3142 113:1979 114:2175 115:2254 116:2188 117:3469 118:3029 119:2086 120:2677 121:1509 122:2965 123:2334 124:1679 125:3003 126:125 128:1660 129:933 130:1583 131:2375 132:791 133:464 134:1636 135:567 136:1619 137:1345 138:3104 139:1627 140:1783 141:1578 142:2538 143:2159 144:1726 145:637 146:2197 147:2152 148:2776 149:2983 150:1339 151:2667 152:2274 153:947 154:9537 155:2299 156:4366 157:2255 158:1501 159:2768 160:3732 161:1964 162:4000 163:2387 164:2020 165:2624 166:1284 167:2234 168:3943 169:886 170:5515 171:1121 172:4581 173:3454 174:885 175:1368 176:3803 177:4720 178:4364 179:2291 180:3178 181:4429 182:3968 183:2841 184:2003 185:21762 186:5622 187:4888 188:4551 189:4485 190:9736 191:1546 192:11447 193:9574 194:7837 195:5685 196:3279 197:3312 198:6100 199:6122 200:8039 201:6356 202:10613 203:10611 204:4724 205:3719 206:4443 207:3845 208:4369 209:5376 210:4729 211:2685 212:4996 213:4076 214:1072 215:54 216:7202 217:3519 218:1675 219:421 220:2199 221:1315 222:940 223:3321 End of report