IPv4 R&E Routing Table Report 23:05 GMT Fri 25 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: 976778 Prefixes after maximum aggregation (per Origin AS): 376154 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479091 Number of IPv4 prefixes with a valid ROA: 539505 Number of IPv4 prefixes with an invalid ROA: 929 Number of IPv4 prefixes with no ROA: 436344 Total ASes present in the Internet Routing Table: 76678 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65770 Origin ASes announcing only one prefix: 26890 Transit ASes present in the Internet Routing Table: 10908 Transit-only ASes present in the Internet Routing Table: 530 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: 1069 Number of instances of unregistered ASNs: 1070 Number of 32-bit ASNs allocated by the RIRs: 46264 Number of 32-bit ASNs visible in the Routing Table: 38114 Prefixes from 32-bit ASNs in the Routing Table: 200920 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: 464 Number of addresses announced to Internet: 3106011136 Equivalent to 185 /8s, 33 /16s and 248 /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: 319941 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255826 Total APNIC prefixes after maximum aggregation: 76626 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247500 Unique aggregates announced from the APNIC address blocks: 103061 APNIC Region origin ASes present in the Internet Routing Table: 14559 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4427 APNIC Region transit ASes present in the Internet Routing Table: 1963 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: 10094 Number of APNIC addresses announced to Internet: 748463616 Equivalent to 44 /8s, 156 /16s and 166 /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: 288026 Total ARIN prefixes after maximum aggregation: 129263 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 289136 Unique aggregates announced from the ARIN address blocks: 138512 ARIN Region origin ASes present in the Internet Routing Table: 19204 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7040 ARIN Region transit ASes present in the Internet Routing Table: 1913 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: 5187 Number of ARIN addresses announced to Internet: 1348941056 Equivalent to 80 /8s, 103 /16s and 53 /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: 273082 Total RIPE prefixes after maximum aggregation: 133575 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270910 Unique aggregates announced from the RIPE address blocks: 173913 RIPE Region origin ASes present in the Internet Routing Table: 28886 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 3969 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: 12391 Number of RIPE addresses announced to Internet: 731662336 Equivalent to 43 /8s, 156 /16s and 72 /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: 123318 Total LACNIC prefixes after maximum aggregation: 29299 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119901 Unique aggregates announced from the LACNIC address blocks: 48776 LACNIC Region origin ASes present in the Internet Routing Table: 11218 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2679 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: 171736576 Equivalent to 10 /8s, 60 /16s and 126 /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: 35457 Total AfriNIC prefixes after maximum aggregation: 6751 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 48867 Unique aggregates announced from the AfriNIC address blocks: 14444 AfriNIC Region origin ASes present in the Internet Routing Table: 1913 AfriNIC Prefixes per ASN: 25.54 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1277 Number of AfriNIC addresses announced to Internet: 104985344 Equivalent to 6 /8s, 65 /16s and 243 /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 10366 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4333 531 281 BBIL-AP BHARTI Airtel Ltd., IN 18403 4266 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 3267 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2862 851 540 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 13284 39711 4107 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 3254 54879 2505 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 7711 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3948 3395 123 AKAMAI-ASN1, NL 9009 3771 325 1963 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2361 360 583 TELLCOM-AS, TR 212238 2116 150 1552 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 1852 14 TE-AS TE-AS, EG 8551 1427 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 1993 369 64 Instituto Costarricense de Electricidad y 28573 1355 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 1190 371 21 Telefonica del Peru S.A.A., PE 22884 1054 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1027 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 1743 607 31 RAYA-AS, EG 24863 1653 389 18 LINKdotNET-AS, EG 29571 1589 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 547 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 13284 39711 4107 AMAZON-02, US 8151 11971 3243 594 UNINET, MX 9808 10366 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7711 1714 145 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4701 312 586 CABLEONE, US 9498 4333 531 281 BBIL-AP BHARTI Airtel Ltd., IN 18403 4266 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3948 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 10366 10273 CHINAMOBILE-CN China Mobile Communications Grou 12479 7711 7566 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4266 4241 FPT-AS-AP FPT Telecom Company, VN 11492 4701 4115 CABLEONE, US 9498 4333 4052 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3948 3825 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 /16:13880 /17:8227 /18:13656 /19:24478 /20:43613 /21:51476 /22:111648 /23:101084 /24:604320 /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 6632 7711 UNI2-AS, ES 8151 6177 11971 UNINET, MX 11492 3531 4701 CABLEONE, US 39891 3489 4797 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 2362 13284 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) ---------------------------------------------- 1:2344 2:1515 3:623 4:9 5:4646 6:163 7:6 8:1557 9:1 11:172 12:1372 13:356 14:2514 15:351 16:283 17:367 18:924 20:512 21:4 22:188 23:7473 24:2750 25:2 27:2729 29:19 31:3220 32:36 34:83 35:206 36:2399 37:4668 38:9052 39:907 40:170 41:4246 42:1900 43:2568 44:377 45:18502 46:5013 47:293 49:1932 50:1893 51:591 52:1556 54:298 55:1093 56:11 57:252 58:2198 59:1303 60:1171 61:2814 62:2938 63:1820 64:5466 65:2188 66:4606 67:3047 68:1117 69:3828 70:1061 71:615 72:2831 74:2781 75:1607 76:615 77:2733 78:1876 79:1749 80:2195 81:2040 82:3175 83:1422 84:1841 85:3405 86:1049 87:2145 88:1277 89:4319 90:780 91:8327 92:2719 93:2887 94:4070 95:4339 96:1405 97:312 98:995 99:670 100:72 101:1399 102:3908 103:32224 104:4818 105:756 106:1044 107:2621 108:1205 109:4080 110:2235 111:3344 112:2048 113:1800 114:1966 115:2167 116:2035 117:2737 118:2890 119:1943 120:1878 121:1368 122:2747 123:2164 124:1611 125:2860 126:91 128:1554 129:946 130:1286 131:1896 132:767 133:450 134:1529 135:331 136:1300 137:1116 138:2881 139:1614 140:1565 141:1492 142:1903 143:1647 144:1082 145:514 146:2145 147:2099 148:2669 149:2889 150:1250 151:1761 152:2094 153:504 154:8061 155:1633 156:3223 157:1888 158:1288 159:2437 160:3580 161:1906 162:3739 163:2062 164:1700 165:2198 166:1450 167:1872 168:4034 169:784 170:5051 171:1006 172:4485 173:3248 174:905 175:1299 176:3666 177:4665 178:3705 179:2277 180:2589 181:4056 182:3388 183:2050 184:2083 185:21530 186:5070 187:4408 188:4202 189:4184 190:9620 191:1472 192:11237 193:9433 194:7765 195:5504 196:3298 197:3691 198:6075 199:8476 200:8072 201:6276 202:10336 203:10539 204:4515 205:3636 206:4578 207:3432 208:4204 209:5141 210:4562 211:2541 212:4524 213:3767 214:1029 215:48 216:6595 217:3130 218:1331 219:377 220:2087 221:1057 222:724 223:2349 End of report