IPv4 R&E Routing Table Report 23:05 GMT Mon 07 Apr, 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: 974716 Prefixes after maximum aggregation (per Origin AS): 374785 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476489 Number of IPv4 prefixes with a valid ROA: 536990 Number of IPv4 prefixes with an invalid ROA: 698 Number of IPv4 prefixes with no ROA: 437028 Total ASes present in the Internet Routing Table: 76615 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65748 Origin ASes announcing only one prefix: 26900 Transit ASes present in the Internet Routing Table: 10867 Transit-only ASes present in the Internet Routing Table: 536 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1046 Number of instances of unregistered ASNs: 1050 Number of 32-bit ASNs allocated by the RIRs: 46166 Number of 32-bit ASNs visible in the Routing Table: 38019 Prefixes from 32-bit ASNs in the Routing Table: 200046 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 458 Number of addresses announced to Internet: 3106976256 Equivalent to 185 /8s, 48 /16s and 178 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 320222 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255136 Total APNIC prefixes after maximum aggregation: 76495 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246863 Unique aggregates announced from the APNIC address blocks: 102721 APNIC Region origin ASes present in the Internet Routing Table: 14528 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4441 APNIC Region transit ASes present in the Internet Routing Table: 1964 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10056 Number of APNIC addresses announced to Internet: 748557312 Equivalent to 44 /8s, 158 /16s and 20 /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: 287654 Total ARIN prefixes after maximum aggregation: 128645 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288674 Unique aggregates announced from the ARIN address blocks: 137349 ARIN Region origin ASes present in the Internet Routing Table: 19203 ARIN Prefixes per ASN: 15.03 ARIN Region origin ASes announcing only one prefix: 7037 ARIN Region transit ASes present in the Internet Routing Table: 1900 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5167 Number of ARIN addresses announced to Internet: 1349805056 Equivalent to 80 /8s, 116 /16s and 100 /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: 272459 Total RIPE prefixes after maximum aggregation: 133044 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270424 Unique aggregates announced from the RIPE address blocks: 173555 RIPE Region origin ASes present in the Internet Routing Table: 28865 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12066 RIPE Region transit ASes present in the Internet Routing Table: 3964 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12356 Number of RIPE addresses announced to Internet: 731735808 Equivalent to 43 /8s, 157 /16s and 103 /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: 123288 Total LACNIC prefixes after maximum aggregation: 29239 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 119967 Unique aggregates announced from the LACNIC address blocks: 48832 LACNIC Region origin ASes present in the Internet Routing Table: 11214 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2465 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9166 Number of LACNIC addresses announced to Internet: 171713280 Equivalent to 10 /8s, 60 /16s and 35 /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: 35133 Total AfriNIC prefixes after maximum aggregation: 6720 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 48330 Unique aggregates announced from the AfriNIC address blocks: 13642 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.37 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 104930048 Equivalent to 6 /8s, 65 /16s and 27 /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 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4256 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4218 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3263 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2845 848 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 434 197 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 12987 39638 3968 AMAZON-02, US 11492 4687 311 584 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 174 3632 8765 951 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3401 3036 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2979 1249 2211 AKAMAI-AS, US 396982 2949 3649 466 GOOGLE-CLOUD-PLATFORM, US 36352 2622 216 804 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 7716 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3900 3395 125 AKAMAI-ASN1, NL 9009 3762 325 1958 M247, RO 12389 3072 2303 895 ROSTELECOM-AS, RU 34984 2366 360 583 TELLCOM-AS, TR 212238 2084 148 1535 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1538 1852 14 TE-AS TE-AS, EG 62240 1488 98 748 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 11925 3244 585 UNINET, MX 10620 3536 487 974 Telmex Colombia S.A., CO 13999 2512 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 22 Telefonica del Peru S.A.A., PE 11664 1163 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1048 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 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 1703 599 30 RAYA-AS, EG 24863 1641 389 16 LINKdotNET-AS, EG 29571 1571 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 868 1099 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 547 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 12987 39638 3968 AMAZON-02, US 8151 11925 3244 585 UNINET, MX 9808 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7716 1714 145 UNI2-AS, ES 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4687 311 584 CABLEONE, US 9498 4256 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4218 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, 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 8151 11925 11340 UNINET, MX 9808 10306 10217 CHINAMOBILE-CN China Mobile Communications Grou 12479 7716 7571 UNI2-AS, ES 7545 6215 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4218 4193 FPT-AS-AP FPT Telecom Company, VN 11492 4687 4103 CABLEONE, US 9498 4256 3980 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 20940 3900 3775 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /11:93 /12:302 /13:580 /14:1216 /15:2140 /16:13885 /17:8226 /18:13659 /19:24480 /20:43566 /21:51558 /22:111689 /23:101123 /24:602126 /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 6641 7716 UNI2-AS, ES 8151 6128 11925 UNINET, MX 11492 3531 4687 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3401 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2331 12987 AMAZON-02, US 30036 2207 2547 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2198 3536 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) ---------------------------------------------- 1:2338 2:1519 3:613 4:10 5:4602 6:162 7:6 8:1548 9:1 11:172 12:1372 13:350 14:2508 15:352 16:280 17:362 18:916 20:477 21:4 22:188 23:7314 24:2833 25:2 27:2696 29:19 31:3222 32:37 34:83 35:204 36:2397 37:4667 38:8946 39:899 40:154 41:4174 42:1891 43:2546 44:364 45:18440 46:4939 47:289 49:1923 50:1900 51:590 52:1551 54:300 55:877 56:11 57:249 58:2191 59:1244 60:1171 61:2818 62:2893 63:1829 64:5495 65:2175 66:4622 67:3059 68:1106 69:3983 70:1069 71:611 72:2824 74:2794 75:1607 76:611 77:2702 78:1872 79:1736 80:2192 81:2012 82:3112 83:1416 84:1833 85:3379 86:1044 87:2152 88:1270 89:4331 90:777 91:8309 92:2790 93:2875 94:4034 95:4298 96:1432 97:312 98:997 99:641 100:70 101:1402 102:3728 103:32172 104:4794 105:753 106:988 107:2611 108:1198 109:4103 110:2232 111:3351 112:2042 113:1807 114:1968 115:2174 116:2032 117:2737 118:2882 119:1945 120:1870 121:1361 122:2745 123:2165 124:1611 125:2854 126:91 128:1557 129:955 130:1265 131:1881 132:777 133:451 134:1514 135:332 136:1306 137:1110 138:2841 139:1609 140:1568 141:1479 142:1833 143:1653 144:1070 145:514 146:2153 147:2107 148:2643 149:2897 150:1246 151:1741 152:2097 153:504 154:7904 155:1628 156:3193 157:1894 158:1269 159:2426 160:3534 161:1887 162:3700 163:1977 164:1697 165:2202 166:1442 167:1874 168:4033 169:785 170:5065 171:1002 172:4462 173:3219 174:909 175:1292 176:3678 177:4712 178:3782 179:2304 180:2574 181:4058 182:3371 183:2029 184:2139 185:21499 186:5084 187:4428 188:4196 189:4167 190:9627 191:1456 192:11155 193:9336 194:7772 195:5500 196:3277 197:3790 198:6036 199:8424 200:8045 201:6289 202:10324 203:10520 204:4524 205:3626 206:4575 207:3438 208:4193 209:5148 210:4498 211:2533 212:4491 213:3754 214:1053 215:48 216:6595 217:3086 218:1330 219:377 220:2087 221:1071 222:712 223:2317 End of report