IPv4 R&E Routing Table Report 23:05 GMT Thu 29 May, 2025 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: 982639 Prefixes after maximum aggregation (per Origin AS): 379348 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 483309 Number of IPv4 prefixes with a valid ROA: 547045 Number of IPv4 prefixes with an invalid ROA: 722 Number of IPv4 prefixes with no ROA: 434872 Total ASes present in the Internet Routing Table: 76731 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65782 Origin ASes announcing only one prefix: 26931 Transit ASes present in the Internet Routing Table: 10949 Transit-only ASes present in the Internet Routing Table: 536 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1067 Number of instances of unregistered ASNs: 1084 Number of 32-bit ASNs allocated by the RIRs: 46539 Number of 32-bit ASNs visible in the Routing Table: 38232 Prefixes from 32-bit ASNs in the Routing Table: 203984 Number of bogon 32-bit ASNs visible in the Routing Table: 44 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 460 Number of addresses announced to Internet: 3109777664 Equivalent to 185 /8s, 91 /16s and 113 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 320830 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258613 Total APNIC prefixes after maximum aggregation: 77149 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249688 Unique aggregates announced from the APNIC address blocks: 104216 APNIC Region origin ASes present in the Internet Routing Table: 14531 APNIC Prefixes per ASN: 17.18 APNIC Region origin ASes announcing only one prefix: 4405 APNIC Region transit ASes present in the Internet Routing Table: 1952 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 26 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10080 Number of APNIC addresses announced to Internet: 748731392 Equivalent to 44 /8s, 160 /16s and 188 /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: 289683 Total ARIN prefixes after maximum aggregation: 131006 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290271 Unique aggregates announced from the ARIN address blocks: 140185 ARIN Region origin ASes present in the Internet Routing Table: 19208 ARIN Prefixes per ASN: 15.11 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1921 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5213 Number of ARIN addresses announced to Internet: 1352122880 Equivalent to 80 /8s, 151 /16s and 194 /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: 273780 Total RIPE prefixes after maximum aggregation: 134288 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272143 Unique aggregates announced from the RIPE address blocks: 175062 RIPE Region origin ASes present in the Internet Routing Table: 28922 RIPE Prefixes per ASN: 9.41 RIPE Region origin ASes announcing only one prefix: 12092 RIPE Region transit ASes present in the Internet Routing Table: 3965 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12452 Number of RIPE addresses announced to Internet: 731634176 Equivalent to 43 /8s, 155 /16s and 218 /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: 123933 Total LACNIC prefixes after maximum aggregation: 29556 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120332 Unique aggregates announced from the LACNIC address blocks: 48971 LACNIC Region origin ASes present in the Internet Routing Table: 11260 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2698 LACNIC Region transit ASes present in the Internet Routing Table: 2536 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 74 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9210 Number of LACNIC addresses announced to Internet: 171936000 Equivalent to 10 /8s, 63 /16s and 137 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35563 Total AfriNIC prefixes after maximum aggregation: 6696 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 49745 Unique aggregates announced from the AfriNIC address blocks: 14465 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 26.06 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277 Number of AfriNIC addresses announced to Internet: 105142784 Equivalent to 6 /8s, 68 /16s and 90 /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 11070 8756 97 CHINAMOBILE-CN China Mobile Communication 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4371 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 533 300 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3275 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2875 853 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2177 434 193 TATACOMM-AS TATA Communications formerly 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 13544 40826 5183 AMAZON-02, US 11492 4735 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3457 8747 897 COGENT-174, US 22773 3346 3017 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3175 3853 420 GOOGLE-CLOUD-PLATFORM, US 16625 2995 1241 2206 AKAMAI-AS, US 36352 2819 230 854 AS-COLOCROSSING, 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 7726 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3958 3395 123 AKAMAI-ASN1, NL 9009 3901 354 2075 M247, RO 12389 3074 2306 889 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2221 161 1635 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 62240 1424 95 739 CLOUVIDER Clouvider - Global ASN, GB 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 12174 3255 580 UNINET, MX 10620 3500 480 1017 Telmex Colombia S.A., CO 13999 2511 540 361 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1361 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1097 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1042 2503 52 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 1780 644 27 RAYA-AS, EG 24863 1653 389 17 LINKdotNET-AS, EG 29571 1610 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1054 523 47 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 545 57 60 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 13544 40826 5183 AMAZON-02, US 8151 12174 3255 580 UNINET, MX 9808 11070 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7726 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 586 CABLEONE, US 18403 4371 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 533 300 BBIL-AP BHARTI Airtel Ltd., IN 20940 3958 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12174 11594 UNINET, MX 9808 11070 10973 CHINAMOBILE-CN China Mobile Communications Grou 12479 7726 7578 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4371 4346 FPT-AS-AP FPT Telecom Company, VN 11492 4735 4149 CABLEONE, US 9498 4361 4061 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3958 3835 AKAMAI-ASN1, NL 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /9:16 /10:41 /11:92 /12:298 /13:580 /14:1211 /15:2140 /16:13865 /17:8207 /18:13610 /19:24484 /20:43848 /21:51452 /22:111594 /23:101930 /24:609255 /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 12479 6639 7726 UNI2-AS, ES 8151 6362 12174 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3426 3631 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2496 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2383 13544 AMAZON-02, US 30036 2235 2576 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 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) ---------------------------------------------- 1:2379 2:1490 3:796 4:9 5:4685 6:162 7:6 8:1575 9:1 11:172 12:1360 13:431 14:2523 15:355 16:285 17:376 18:920 20:542 21:4 22:188 23:7525 24:2749 25:2 27:2753 29:19 31:3283 32:36 33:1 34:83 35:211 36:3075 37:4621 38:9182 39:909 40:170 41:4219 42:1932 43:2617 44:377 45:18606 46:5064 47:301 49:1937 50:1883 51:591 52:1567 54:320 55:1098 56:11 57:260 58:2211 59:1301 60:1168 61:2831 62:2916 63:1798 64:5446 65:2176 66:4623 67:3054 68:1125 69:3836 70:1076 71:629 72:2839 74:2773 75:1506 76:615 77:2699 78:1889 79:1686 80:2202 81:2072 82:3095 83:1448 84:1858 85:3416 86:1064 87:2122 88:1286 89:4394 90:776 91:8364 92:2716 93:2911 94:4056 95:4322 96:1416 97:312 98:978 99:689 100:72 101:1411 102:3871 103:32602 104:5059 105:767 106:1036 107:2647 108:1244 109:4043 110:2247 111:3282 112:2110 113:1810 114:1979 115:2173 116:2067 117:2535 118:2869 119:1915 120:1963 121:1375 122:2759 123:2176 124:1626 125:2886 126:91 128:1581 129:959 130:1301 131:1975 132:775 133:449 134:1536 135:333 136:1351 137:1120 138:2878 139:1593 140:1590 141:1502 142:1905 143:1784 144:1151 145:509 146:2183 147:2106 148:2700 149:2882 150:1261 151:1932 152:2083 153:502 154:8006 155:1989 156:3283 157:1916 158:1327 159:2473 160:3839 161:1837 162:3762 163:2177 164:1730 165:2215 166:1487 167:1931 168:4295 169:787 170:5088 171:1009 172:4432 173:3302 174:913 175:1305 176:3697 177:4767 178:3640 179:2354 180:2743 181:4080 182:3442 183:2155 184:2055 185:21535 186:5158 187:4504 188:4240 189:4312 190:9543 191:1472 192:11264 193:9447 194:7789 195:5530 196:3262 197:3666 198:6064 199:8517 200:8061 201:6341 202:10275 203:10627 204:4534 205:3584 206:4454 207:3455 208:4226 209:5116 210:4547 211:2534 212:4548 213:3719 214:1028 215:48 216:6729 217:3112 218:1347 219:395 220:2090 221:1105 222:722 223:2408 End of report