IPv4 R&E Routing Table Report 23:05 GMT Mon 31 Mar, 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: 974717 Prefixes after maximum aggregation (per Origin AS): 374139 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476393 Number of IPv4 prefixes with a valid ROA: 536698 Number of IPv4 prefixes with an invalid ROA: 671 Number of IPv4 prefixes with no ROA: 437348 Total ASes present in the Internet Routing Table: 76580 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65712 Origin ASes announcing only one prefix: 26881 Transit ASes present in the Internet Routing Table: 10868 Transit-only ASes present in the Internet Routing Table: 534 Paths with bogon ASNs present in the IPv4 Routing Table: 12 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1018 Number of instances of unregistered ASNs: 1023 Number of 32-bit ASNs allocated by the RIRs: 46117 Number of 32-bit ASNs visible in the Routing Table: 37981 Prefixes from 32-bit ASNs in the Routing Table: 199688 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 465 Number of addresses announced to Internet: 3107481088 Equivalent to 185 /8s, 56 /16s and 102 /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: 320296 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254905 Total APNIC prefixes after maximum aggregation: 76336 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246598 Unique aggregates announced from the APNIC address blocks: 102650 APNIC Region origin ASes present in the Internet Routing Table: 14505 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4434 APNIC Region transit ASes present in the Internet Routing Table: 1958 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10038 Number of APNIC addresses announced to Internet: 748666112 Equivalent to 44 /8s, 159 /16s and 189 /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: 288024 Total ARIN prefixes after maximum aggregation: 128271 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288773 Unique aggregates announced from the ARIN address blocks: 137157 ARIN Region origin ASes present in the Internet Routing Table: 19200 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7040 ARIN Region transit ASes present in the Internet Routing Table: 1901 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5163 Number of ARIN addresses announced to Internet: 1349761024 Equivalent to 80 /8s, 115 /16s and 184 /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: 272257 Total RIPE prefixes after maximum aggregation: 132932 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270573 Unique aggregates announced from the RIPE address blocks: 173777 RIPE Region origin ASes present in the Internet Routing Table: 28863 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12344 Number of RIPE addresses announced to Internet: 732275968 Equivalent to 43 /8s, 165 /16s and 165 /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: 123518 Total LACNIC prefixes after maximum aggregation: 29264 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120235 Unique aggregates announced from the LACNIC address blocks: 48805 LACNIC Region origin ASes present in the Internet Routing Table: 11215 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2453 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: 9168 Number of LACNIC addresses announced to Internet: 171669504 Equivalent to 10 /8s, 59 /16s and 120 /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: 34995 Total AfriNIC prefixes after maximum aggregation: 6708 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 48073 Unique aggregates announced from the AfriNIC address blocks: 13606 AfriNIC Region origin ASes present in the Internet Routing Table: 1900 AfriNIC Prefixes per ASN: 25.30 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1268 Number of AfriNIC addresses announced to Internet: 104874240 Equivalent to 6 /8s, 64 /16s and 65 /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 10305 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4214 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 3265 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2845 848 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2175 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 12953 39642 3973 AMAZON-02, US 11492 4676 310 586 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3406 8738 777 COGENT-174, US 22773 3381 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2983 1250 2201 AKAMAI-AS, US 396982 2947 3649 464 GOOGLE-CLOUD-PLATFORM, US 36352 2585 214 799 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 7721 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3882 3395 125 AKAMAI-ASN1, NL 9009 3775 326 1965 M247, RO 12389 3035 2303 888 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2071 147 1528 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1491 98 749 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 11904 3243 582 UNINET, MX 10620 3522 486 971 Telmex Colombia S.A., CO 13999 2509 539 367 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 21 Telefonica del Peru S.A.A., PE 11664 1116 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1049 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 1615 389 18 LINKdotNET-AS, EG 29571 1567 102 23 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 980 183 284 INTERNET-SOLUTIONS, ZA 37069 891 1083 15 MOBINIL, EG 6713 562 1861 35 IAM-AS, MA 36914 544 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 12953 39642 3973 AMAZON-02, US 8151 11904 3243 582 UNINET, MX 9808 10305 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7721 1714 145 UNI2-AS, ES 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4676 310 586 CABLEONE, US 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4214 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4173 286 83 VIASAT-SP-BACKBONE, US 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 11904 11322 UNINET, MX 9808 10305 10216 CHINAMOBILE-CN China Mobile Communications Grou 12479 7721 7576 UNI2-AS, ES 7545 6220 5563 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4214 4189 FPT-AS-AP FPT Telecom Company, VN 11492 4676 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4247 3971 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 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 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 /13:581 /14:1218 /15:2144 /16:13922 /17:8237 /18:13657 /19:24482 /20:43557 /21:51569 /22:111593 /23:100909 /24:602380 /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 6649 7721 UNI2-AS, ES 8151 6104 11904 UNINET, MX 11492 3529 4676 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2516 3381 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2321 12953 AMAZON-02, US 30036 2200 2539 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3522 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) ---------------------------------------------- 1:2335 2:1504 3:601 4:10 5:4581 6:163 7:6 8:1548 9:1 11:172 12:1369 13:353 14:2514 15:353 16:279 17:359 18:915 20:463 21:4 22:188 23:7296 24:3021 25:2 27:2700 29:19 31:3199 32:37 34:83 35:203 36:2394 37:4666 38:8900 39:899 40:154 41:4201 42:1901 43:2551 44:357 45:18439 46:4897 47:287 49:1960 50:1898 51:589 52:1554 54:301 55:877 56:11 57:249 58:2190 59:1233 60:1171 61:2808 62:2914 63:1826 64:5475 65:2179 66:4546 67:3026 68:1119 69:3971 70:1111 71:611 72:2843 74:2793 75:1660 76:612 77:2706 78:1869 79:1723 80:2194 81:2016 82:3016 83:1416 84:1821 85:3366 86:1042 87:2144 88:1276 89:4313 90:777 91:8308 92:2794 93:2877 94:4014 95:4285 96:1433 97:312 98:991 99:737 100:71 101:1395 102:3718 103:32144 104:4801 105:749 106:991 107:2588 108:1203 109:4084 110:2229 111:3326 112:2037 113:1791 114:1962 115:2110 116:2034 117:2733 118:2835 119:1939 120:1870 121:1358 122:2732 123:2165 124:1608 125:2847 126:88 128:1545 129:948 130:1264 131:1894 132:772 133:451 134:1526 135:329 136:1280 137:1098 138:2881 139:1621 140:1563 141:1486 142:1823 143:1649 144:1065 145:515 146:2149 147:2099 148:2635 149:2893 150:1248 151:2038 152:2097 153:504 154:7873 155:1619 156:3214 157:1900 158:1267 159:2426 160:3555 161:1927 162:3710 163:1958 164:1695 165:2202 166:1427 167:1884 168:4039 169:794 170:5074 171:1001 172:4441 173:3215 174:909 175:1285 176:3683 177:4728 178:3814 179:2333 180:2572 181:4057 182:3367 183:2033 184:2289 185:21473 186:5125 187:4423 188:4200 189:4218 190:9625 191:1524 192:11149 193:9411 194:7777 195:5516 196:3267 197:3701 198:6061 199:8401 200:8045 201:6298 202:10327 203:10505 204:4516 205:3620 206:4568 207:3435 208:4180 209:5168 210:4497 211:2522 212:4488 213:3749 214:1048 215:48 216:6578 217:3077 218:1327 219:377 220:2085 221:1070 222:711 223:2317 End of report