IPv4 R&E Routing Table Report 23:05 GMT Sun 27 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: 976828 Prefixes after maximum aggregation (per Origin AS): 376352 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479118 Number of IPv4 prefixes with a valid ROA: 539563 Number of IPv4 prefixes with an invalid ROA: 657 Number of IPv4 prefixes with no ROA: 436608 Total ASes present in the Internet Routing Table: 76699 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65793 Origin ASes announcing only one prefix: 26931 Transit ASes present in the Internet Routing Table: 10906 Transit-only ASes present in the Internet Routing Table: 532 Paths with bogon ASNs present in the IPv4 Routing Table: 19 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: 1068 Number of instances of unregistered ASNs: 1069 Number of 32-bit ASNs allocated by the RIRs: 46291 Number of 32-bit ASNs visible in the Routing Table: 38135 Prefixes from 32-bit ASNs in the Routing Table: 200932 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 468 Number of addresses announced to Internet: 3105888256 Equivalent to 185 /8s, 32 /16s and 24 /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: 320186 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256007 Total APNIC prefixes after maximum aggregation: 76758 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247358 Unique aggregates announced from the APNIC address blocks: 103055 APNIC Region origin ASes present in the Internet Routing Table: 14569 APNIC Prefixes per ASN: 16.98 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10104 Number of APNIC addresses announced to Internet: 748470528 Equivalent to 44 /8s, 156 /16s and 193 /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: 287824 Total ARIN prefixes after maximum aggregation: 129270 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288938 Unique aggregates announced from the ARIN address blocks: 138507 ARIN Region origin ASes present in the Internet Routing Table: 19208 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7043 ARIN Region transit ASes present in the Internet Routing Table: 1914 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: 5188 Number of ARIN addresses announced to Internet: 1348792576 Equivalent to 80 /8s, 100 /16s and 241 /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: 273041 Total RIPE prefixes after maximum aggregation: 133623 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270882 Unique aggregates announced from the RIPE address blocks: 173970 RIPE Region origin ASes present in the Internet Routing Table: 28899 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12064 RIPE Region transit ASes present in the Internet Routing Table: 3963 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12405 Number of RIPE addresses announced to Internet: 731702784 Equivalent to 43 /8s, 156 /16s and 230 /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: 123590 Total LACNIC prefixes after maximum aggregation: 29307 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120173 Unique aggregates announced from the LACNIC address blocks: 48754 LACNIC Region origin ASes present in the Internet Routing Table: 11213 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2688 LACNIC Region transit ASes present in the Internet Routing Table: 2479 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: 9165 Number of LACNIC addresses announced to Internet: 171711232 Equivalent to 10 /8s, 60 /16s and 27 /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: 35298 Total AfriNIC prefixes after maximum aggregation: 6754 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 49009 Unique aggregates announced from the AfriNIC address blocks: 14447 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.67 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1273 Number of AfriNIC addresses announced to Internet: 104988160 Equivalent to 6 /8s, 65 /16s and 254 /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 10454 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4256 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3268 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2858 851 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2180 11524 640 KIXS-AS-KR Korea Telecom, KR 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 13232 39702 4089 AMAZON-02, US 11492 4701 312 586 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3697 8755 916 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3396 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2997 1256 2214 AKAMAI-AS, US 396982 2966 3651 474 GOOGLE-CLOUD-PLATFORM, US 36352 2735 225 835 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 7724 1714 145 UNI2-AS, ES 39891 4762 290 64 ALJAWWALSTC-AS, SA 20940 3950 3395 123 AKAMAI-ASN1, NL 9009 3771 325 1963 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2115 150 1551 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 1852 14 TE-AS TE-AS, EG 8551 1424 366 33 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 11971 3243 594 UNINET, MX 10620 3516 485 994 Telmex Colombia S.A., CO 13999 2508 539 364 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1192 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1189 371 21 Telefonica del Peru S.A.A., PE 22884 1054 67 378 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 1684 563 29 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1589 102 22 ORANGE-COTE-IVOIRE, CI 36992 1434 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36935 898 520 43 Vodafone-, EG 36914 549 82 3 KENET-AS, KE 15399 531 56 58 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 13232 39702 4089 AMAZON-02, US 8151 11971 3243 594 UNINET, MX 9808 10454 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7724 1714 145 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4762 290 64 ALJAWWALSTC-AS, SA 11492 4701 312 586 CABLEONE, US 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4256 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3950 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 11971 11377 UNINET, MX 9808 10454 10361 CHINAMOBILE-CN China Mobile Communications Grou 12479 7724 7579 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4762 4698 ALJAWWALSTC-AS, SA 18403 4256 4231 FPT-AS-AP FPT Telecom Company, VN 11492 4701 4115 CABLEONE, US 9498 4308 4031 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3950 3827 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 /12:300 /13:580 /14:1213 /15:2137 /16:13876 /17:8224 /18:13637 /19:24453 /20:43552 /21:51440 /22:111497 /23:101025 /24:604728 /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 6645 7724 UNI2-AS, ES 8151 6177 11971 UNINET, MX 11492 3531 4701 CABLEONE, US 39891 3473 4762 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2532 3396 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2357 13232 AMAZON-02, US 30036 2225 2565 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2182 3516 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) ---------------------------------------------- 1:2342 2:1515 3:623 4:9 5:4651 6:163 7:6 8:1556 9:1 11:172 12:1372 13:350 14:2514 15:352 16:282 17:367 18:920 20:512 21:4 22:188 23:7478 24:2751 25:2 27:2729 29:19 31:3222 32:36 34:83 35:206 36:2486 37:4678 38:9064 39:907 40:166 41:4237 42:1899 43:2563 44:376 45:18499 46:5017 47:292 49:1931 50:1893 51:590 52:1550 54:298 55:1081 56:11 57:253 58:2197 59:1285 60:1171 61:2809 62:2938 63:1820 64:5466 65:2187 66:4595 67:3049 68:1114 69:3825 70:1061 71:617 72:2832 74:2778 75:1607 76:614 77:2732 78:1875 79:1749 80:2197 81:2042 82:3171 83:1424 84:1841 85:3409 86:1047 87:2146 88:1280 89:4323 90:784 91:8325 92:2716 93:2891 94:4067 95:4339 96:1406 97:312 98:995 99:669 100:72 101:1384 102:3906 103:32165 104:4823 105:750 106:1044 107:2621 108:1208 109:4071 110:2234 111:3346 112:2047 113:1798 114:1965 115:2164 116:2035 117:2736 118:2888 119:1943 120:1879 121:1367 122:2746 123:2163 124:1610 125:2860 126:91 128:1562 129:947 130:1288 131:1891 132:749 133:451 134:1531 135:331 136:1302 137:1114 138:2884 139:1613 140:1570 141:1494 142:1903 143:1664 144:1088 145:514 146:2148 147:2096 148:2669 149:2883 150:1251 151:1745 152:2094 153:504 154:8287 155:1640 156:3334 157:1888 158:1258 159:2434 160:3586 161:1907 162:3737 163:2070 164:1702 165:2197 166:1446 167:1875 168:4031 169:785 170:5051 171:1007 172:4484 173:3248 174:906 175:1299 176:3665 177:4672 178:3668 179:2534 180:2589 181:4057 182:3389 183:2054 184:2080 185:21539 186:5089 187:4411 188:4213 189:4216 190:9613 191:1468 192:11236 193:9436 194:7767 195:5504 196:3290 197:3689 198:6074 199:8470 200:8063 201:6271 202:10333 203:10530 204:4515 205:3575 206:4575 207:3432 208:4205 209:5142 210:4520 211:2534 212:4522 213:3764 214:1030 215:48 216:6592 217:3134 218:1331 219:377 220:2087 221:1057 222:724 223:2349 End of report