IPv4 R&E Routing Table Report 23:05 GMT Sun 18 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: 980200 Prefixes after maximum aggregation (per Origin AS): 378262 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479355 Number of IPv4 prefixes with a valid ROA: 543774 Number of IPv4 prefixes with an invalid ROA: 368 Number of IPv4 prefixes with no ROA: 436058 Total ASes present in the Internet Routing Table: 76703 Prefixes per ASN: 12.78 Origin-only ASes present in the Internet Routing Table: 65751 Origin ASes announcing only one prefix: 26907 Transit ASes present in the Internet Routing Table: 10952 Transit-only ASes present in the Internet Routing Table: 539 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 1019 Number of instances of unregistered ASNs: 1036 Number of 32-bit ASNs allocated by the RIRs: 46451 Number of 32-bit ASNs visible in the Routing Table: 38180 Prefixes from 32-bit ASNs in the Routing Table: 202884 Number of bogon 32-bit ASNs visible in the Routing Table: 42 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 432 Number of addresses announced to Internet: 3108716032 Equivalent to 185 /8s, 75 /16s and 62 /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: 320178 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257891 Total APNIC prefixes after maximum aggregation: 76896 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249123 Unique aggregates announced from the APNIC address blocks: 102984 APNIC Region origin ASes present in the Internet Routing Table: 14558 APNIC Prefixes per ASN: 17.11 APNIC Region origin ASes announcing only one prefix: 4406 APNIC Region transit ASes present in the Internet Routing Table: 1970 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10095 Number of APNIC addresses announced to Internet: 748342016 Equivalent to 44 /8s, 154 /16s and 203 /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: 288437 Total ARIN prefixes after maximum aggregation: 130521 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289651 Unique aggregates announced from the ARIN address blocks: 138740 ARIN Region origin ASes present in the Internet Routing Table: 19205 ARIN Prefixes per ASN: 15.08 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1926 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: 5201 Number of ARIN addresses announced to Internet: 1352531712 Equivalent to 80 /8s, 157 /16s and 255 /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: 273117 Total RIPE prefixes after maximum aggregation: 133896 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271303 Unique aggregates announced from the RIPE address blocks: 174481 RIPE Region origin ASes present in the Internet Routing Table: 28902 RIPE Prefixes per ASN: 9.39 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 3968 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: 12431 Number of RIPE addresses announced to Internet: 730883328 Equivalent to 43 /8s, 144 /16s and 101 /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: 124188 Total LACNIC prefixes after maximum aggregation: 29533 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119829 Unique aggregates announced from the LACNIC address blocks: 48874 LACNIC Region origin ASes present in the Internet Routing Table: 11231 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2696 LACNIC Region transit ASes present in the Internet Routing Table: 2518 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9182 Number of LACNIC addresses announced to Internet: 171716096 Equivalent to 10 /8s, 60 /16s and 46 /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: 35548 Total AfriNIC prefixes after maximum aggregation: 6782 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49862 Unique aggregates announced from the AfriNIC address blocks: 13893 AfriNIC Region origin ASes present in the Internet Routing Table: 1901 AfriNIC Prefixes per ASN: 26.23 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 375 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: 1271 Number of AfriNIC addresses announced to Internet: 105029632 Equivalent to 6 /8s, 66 /16s and 160 /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 10990 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6164 842 652 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4284 533 300 BBIL-AP BHARTI Airtel Ltd., IN 7552 3906 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3270 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2170 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 13407 40822 5040 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3455 8747 883 COGENT-174, US 22773 3350 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 396982 3164 3851 416 GOOGLE-CLOUD-PLATFORM, US 16625 3012 1255 2220 AKAMAI-AS, US 36352 2807 229 870 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 7698 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3945 3395 123 AKAMAI-ASN1, NL 9009 3764 325 1954 M247, RO 12389 3070 2305 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2149 151 1581 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1566 1852 14 TE-AS TE-AS, EG 62240 1421 94 736 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 12112 3249 585 UNINET, MX 10620 3499 480 1018 Telmex Colombia S.A., CO 13999 2517 540 364 Mega Cable, S.A. de C.V., MX 11830 1996 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 1197 371 22 Telefonica del Peru S.A.A., PE 11664 1109 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1059 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 262287 1048 83 234 Latitude.sh LTDA, 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 1778 632 28 RAYA-AS, EG 24863 1652 389 16 LINKdotNET-AS, EG 29571 1598 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 1036 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 15399 545 57 60 WANANCHI-, KE 36914 545 82 3 KENET-AS, 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 13407 40822 5040 AMAZON-02, US 8151 12112 3249 585 UNINET, MX 9808 10990 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7698 1714 148 UNI2-AS, ES 7545 6164 842 652 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4284 533 300 BBIL-AP BHARTI Airtel Ltd., IN 20940 3945 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 12112 11527 UNINET, MX 9808 10990 10894 CHINAMOBILE-CN China Mobile Communications Grou 12479 7698 7550 UNI2-AS, ES 7545 6164 5512 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4454 4429 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4284 3984 BBIL-AP BHARTI Airtel Ltd., IN 7552 3906 3880 VIETEL-AS-AP Viettel Group, VN 20940 3945 3822 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 23.146.16.0/24 Origin: 396281 RESERVED, ZZ 23.146.16.0/24 Transit: 7018 ATT-INTERNET4, US 23.146.19.0/24 Origin: 396281 RESERVED, ZZ 23.146.19.0/24 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 /15:2140 /16:13934 /17:8217 /18:13618 /19:24471 /20:43729 /21:51379 /22:111426 /23:101451 /24:607579 /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 6614 7698 UNI2-AS, ES 8151 6308 12112 UNINET, MX 11492 3532 4726 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2503 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2331 13407 AMAZON-02, US 30036 2228 2568 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3499 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) ---------------------------------------------- 1:2359 2:1492 3:766 4:11 5:4684 6:163 7:6 8:1581 9:1 11:172 12:1366 13:420 14:2518 15:353 16:284 17:375 18:911 20:522 21:4 22:188 23:7493 24:2742 25:2 27:2749 29:19 31:3261 32:36 33:1 34:83 35:204 36:2908 37:4620 38:9156 39:910 40:169 41:4199 42:1993 43:2614 44:384 45:18600 46:5029 47:301 49:1937 50:1890 51:590 52:1556 54:312 55:1093 56:11 57:255 58:2244 59:1226 60:1167 61:2809 62:2921 63:1802 64:5455 65:2174 66:4606 67:3056 68:1120 69:3826 70:1066 71:626 72:2816 74:2766 75:1611 76:614 77:2705 78:1870 79:1750 80:2200 81:2063 82:3119 83:1428 84:1858 85:3420 86:1069 87:2153 88:1286 89:4373 90:775 91:8335 92:2691 93:2896 94:4050 95:4292 96:1416 97:312 98:980 99:686 100:72 101:1387 102:3902 103:32789 104:5020 105:768 106:1034 107:2647 108:1216 109:4079 110:2249 111:3326 112:2070 113:1799 114:1971 115:2160 116:2060 117:2556 118:2878 119:1955 120:1924 121:1367 122:2751 123:2162 124:1612 125:2834 126:91 128:1581 129:949 130:1283 131:1961 132:776 133:450 134:1535 135:332 136:1342 137:1116 138:2878 139:1593 140:1585 141:1506 142:1899 143:1745 144:1112 145:505 146:2149 147:2101 148:2700 149:2866 150:1234 151:1905 152:2079 153:497 154:8035 155:1963 156:3301 157:1894 158:1307 159:2445 160:3827 161:1878 162:3736 163:2138 164:1721 165:2195 166:1480 167:1903 168:4279 169:787 170:4911 171:1006 172:4421 173:3285 174:913 175:1306 176:3694 177:4699 178:3631 179:2269 180:2687 181:4063 182:3436 183:2139 184:2052 185:21526 186:5140 187:4430 188:4245 189:4263 190:9519 191:1469 192:11205 193:9471 194:7764 195:5517 196:3278 197:3662 198:6061 199:8495 200:8061 201:6347 202:10273 203:10491 204:4530 205:3605 206:4460 207:3460 208:4241 209:5157 210:4533 211:2541 212:4525 213:3712 214:1026 215:48 216:6699 217:3127 218:1340 219:397 220:2092 221:1083 222:716 223:2386 End of report