IPv4 R&E Routing Table Report 23:05 GMT Sat 24 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: 981776 Prefixes after maximum aggregation (per Origin AS): 378773 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481570 Number of IPv4 prefixes with a valid ROA: 545800 Number of IPv4 prefixes with an invalid ROA: 734 Number of IPv4 prefixes with no ROA: 435242 Total ASes present in the Internet Routing Table: 76703 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65764 Origin ASes announcing only one prefix: 26878 Transit ASes present in the Internet Routing Table: 10939 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: 1031 Number of instances of unregistered ASNs: 1048 Number of 32-bit ASNs allocated by the RIRs: 46510 Number of 32-bit ASNs visible in the Routing Table: 38203 Prefixes from 32-bit ASNs in the Routing Table: 203687 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: 453 Number of addresses announced to Internet: 3109585920 Equivalent to 185 /8s, 88 /16s and 132 /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: 320583 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258592 Total APNIC prefixes after maximum aggregation: 77160 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249687 Unique aggregates announced from the APNIC address blocks: 104197 APNIC Region origin ASes present in the Internet Routing Table: 14550 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4396 APNIC Region transit ASes present in the Internet Routing Table: 1955 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10092 Number of APNIC addresses announced to Internet: 748485632 Equivalent to 44 /8s, 156 /16s and 252 /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: 289463 Total ARIN prefixes after maximum aggregation: 130822 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289905 Unique aggregates announced from the ARIN address blocks: 139419 ARIN Region origin ASes present in the Internet Routing Table: 19203 ARIN Prefixes per ASN: 15.10 ARIN Region origin ASes announcing only one prefix: 7047 ARIN Region transit ASes present in the Internet Routing Table: 1928 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: 5206 Number of ARIN addresses announced to Internet: 1352518144 Equivalent to 80 /8s, 157 /16s and 202 /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: 273205 Total RIPE prefixes after maximum aggregation: 133976 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271682 Unique aggregates announced from the RIPE address blocks: 174871 RIPE Region origin ASes present in the Internet Routing Table: 28907 RIPE Prefixes per ASN: 9.40 RIPE Region origin ASes announcing only one prefix: 12073 RIPE Region transit ASes present in the Internet Routing Table: 3952 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12445 Number of RIPE addresses announced to Internet: 731420160 Equivalent to 43 /8s, 152 /16s and 150 /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: 123946 Total LACNIC prefixes after maximum aggregation: 29508 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120346 Unique aggregates announced from the LACNIC address blocks: 48875 LACNIC Region origin ASes present in the Internet Routing Table: 11241 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2535 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 34 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9190 Number of LACNIC addresses announced to Internet: 171840000 Equivalent to 10 /8s, 62 /16s and 18 /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: 35539 Total AfriNIC prefixes after maximum aggregation: 6676 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 49703 Unique aggregates announced from the AfriNIC address blocks: 13801 AfriNIC Region origin ASes present in the Internet Routing Table: 1900 AfriNIC Prefixes per ASN: 26.16 AfriNIC Region origin ASes announcing only one prefix: 683 AfriNIC Region transit ASes present in the Internet Routing Table: 380 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: 1270 Number of AfriNIC addresses announced to Internet: 105110784 Equivalent to 6 /8s, 67 /16s and 221 /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 11030 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4408 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 534 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3903 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 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 13467 40825 5112 AMAZON-02, US 11492 4734 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3418 8746 882 COGENT-174, US 22773 3345 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3169 3852 418 GOOGLE-CLOUD-PLATFORM, US 16625 3021 1258 2227 AKAMAI-AS, US 36352 2830 231 859 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 7713 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3956 3395 123 AKAMAI-ASN1, NL 9009 3832 335 2052 M247, RO 12389 3072 2305 888 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2390 360 580 TELLCOM-AS, TR 212238 2155 152 1584 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 62240 1422 94 737 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 12169 3253 582 UNINET, MX 10620 3500 480 1017 Telmex Colombia S.A., CO 13999 2511 540 365 Mega Cable, S.A. de C.V., MX 11830 1980 369 64 Instituto Costarricense de Electricidad y 28573 1358 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 1112 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 374 163 Axtel, S.A.B. de C.V., MX 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 1608 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1046 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 550 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 13467 40825 5112 AMAZON-02, US 8151 12169 3253 582 UNINET, MX 9808 11030 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7713 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4734 314 586 CABLEONE, US 18403 4408 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4361 534 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 3956 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 12169 11587 UNINET, MX 9808 11030 10934 CHINAMOBILE-CN China Mobile Communications Grou 12479 7713 7565 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4408 4383 FPT-AS-AP FPT Telecom Company, VN 11492 4734 4148 CABLEONE, US 9498 4361 4060 BBIL-AP BHARTI Airtel Ltd., IN 7552 3903 3877 VIETEL-AS-AP Viettel Group, VN 20940 3956 3833 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 /12:299 /13:580 /14:1212 /15:2141 /16:13857 /17:8213 /18:13588 /19:24479 /20:43813 /21:51425 /22:111578 /23:101833 /24:608593 /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 6629 7713 UNI2-AS, ES 8151 6360 12169 UNINET, MX 11492 3531 4734 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2497 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2325 13467 AMAZON-02, US 30036 2231 2572 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) ---------------------------------------------- 1:2378 2:1501 3:780 4:9 5:4707 6:163 7:6 8:1580 9:1 11:172 12:1362 13:431 14:2521 15:354 16:285 17:376 18:919 20:528 21:4 22:188 23:7510 24:2747 25:2 27:2765 29:19 31:3268 32:36 33:1 34:83 35:207 36:2968 37:4620 38:9152 39:907 40:169 41:4234 42:1958 43:2626 44:382 45:18654 46:5052 47:301 49:1934 50:1877 51:590 52:1563 54:320 55:1098 56:11 57:258 58:2243 59:1300 60:1168 61:2827 62:2914 63:1799 64:5455 65:2178 66:4608 67:3055 68:1127 69:3827 70:1082 71:625 72:2835 74:2763 75:1507 76:615 77:2703 78:1888 79:1539 80:2203 81:2079 82:3118 83:1434 84:1859 85:3416 86:1067 87:2128 88:1287 89:4388 90:775 91:8358 92:2705 93:2893 94:4051 95:4309 96:1416 97:312 98:978 99:686 100:71 101:1410 102:3883 103:32795 104:5048 105:767 106:1034 107:2649 108:1206 109:4024 110:2254 111:3292 112:2097 113:1802 114:1974 115:2161 116:2064 117:2534 118:2868 119:1923 120:1949 121:1376 122:2761 123:2176 124:1624 125:2886 126:91 128:1586 129:954 130:1299 131:1957 132:774 133:451 134:1530 135:333 136:1340 137:1118 138:2905 139:1594 140:1586 141:1500 142:1888 143:1765 144:1121 145:502 146:2180 147:2106 148:2703 149:2885 150:1233 151:1935 152:2078 153:498 154:8014 155:1979 156:3203 157:1915 158:1323 159:2442 160:3836 161:1836 162:3747 163:2160 164:1727 165:2204 166:1478 167:1886 168:4294 169:786 170:5086 171:1007 172:4367 173:3293 174:913 175:1298 176:3702 177:4764 178:3643 179:2321 180:2763 181:4068 182:3443 183:2147 184:2050 185:21555 186:5147 187:4509 188:4263 189:4323 190:9534 191:1480 192:11234 193:9456 194:7774 195:5526 196:3257 197:3674 198:6068 199:8504 200:8061 201:6350 202:10278 203:10604 204:4517 205:3601 206:4432 207:3455 208:4236 209:5132 210:4545 211:2531 212:4540 213:3717 214:1024 215:48 216:6718 217:3129 218:1345 219:395 220:2091 221:1094 222:720 223:2394 End of report