IPv4 R&E Routing Table Report 23:05 GMT Thu 20 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: 975084 Prefixes after maximum aggregation (per Origin AS): 373847 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475711 Number of IPv4 prefixes with a valid ROA: 535694 Number of IPv4 prefixes with an invalid ROA: 1204 Number of IPv4 prefixes with no ROA: 438186 Total ASes present in the Internet Routing Table: 76562 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65711 Origin ASes announcing only one prefix: 26851 Transit ASes present in the Internet Routing Table: 10851 Transit-only ASes present in the Internet Routing Table: 532 Paths with bogon ASNs present in the IPv4 Routing Table: 16 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1041 Number of instances of unregistered ASNs: 1050 Number of 32-bit ASNs allocated by the RIRs: 46115 Number of 32-bit ASNs visible in the Routing Table: 37953 Prefixes from 32-bit ASNs in the Routing Table: 199635 Number of bogon 32-bit ASNs visible in the Routing Table: 30 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 524 Number of addresses announced to Internet: 3108369664 Equivalent to 185 /8s, 69 /16s and 245 /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: 320050 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255321 Total APNIC prefixes after maximum aggregation: 76250 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247076 Unique aggregates announced from the APNIC address blocks: 102597 APNIC Region origin ASes present in the Internet Routing Table: 14507 APNIC Prefixes per ASN: 17.03 APNIC Region origin ASes announcing only one prefix: 4414 APNIC Region transit ASes present in the Internet Routing Table: 1951 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10033 Number of APNIC addresses announced to Internet: 748968960 Equivalent to 44 /8s, 164 /16s and 92 /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: 288267 Total ARIN prefixes after maximum aggregation: 128349 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288904 Unique aggregates announced from the ARIN address blocks: 136752 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 1906 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5161 Number of ARIN addresses announced to Internet: 1350205184 Equivalent to 80 /8s, 122 /16s and 127 /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: 272094 Total RIPE prefixes after maximum aggregation: 132648 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270427 Unique aggregates announced from the RIPE address blocks: 173499 RIPE Region origin ASes present in the Internet Routing Table: 28856 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12056 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: 41 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12324 Number of RIPE addresses announced to Internet: 732415488 Equivalent to 43 /8s, 167 /16s and 198 /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: 123412 Total LACNIC prefixes after maximum aggregation: 29219 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120074 Unique aggregates announced from the LACNIC address blocks: 48873 LACNIC Region origin ASes present in the Internet Routing Table: 11195 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2468 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: 9158 Number of LACNIC addresses announced to Internet: 171580928 Equivalent to 10 /8s, 58 /16s and 30 /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: 34949 Total AfriNIC prefixes after maximum aggregation: 6744 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 48079 Unique aggregates announced from the AfriNIC address blocks: 13560 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.17 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 374 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: 1277 Number of AfriNIC addresses announced to Internet: 104946944 Equivalent to 6 /8s, 65 /16s and 93 /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 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4393 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4265 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3267 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 847 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2170 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 12950 39644 3975 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 174 3627 8764 950 COGENT-174, US 6327 3623 1320 81 SHAW, CA 22773 3378 3036 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 16625 2964 1246 2183 AKAMAI-AS, US 396982 2945 3660 458 GOOGLE-CLOUD-PLATFORM, US 36352 2562 213 804 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 7756 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3898 3395 126 AKAMAI-ASN1, NL 9009 3765 325 1952 M247, RO 12389 2999 2303 888 ROSTELECOM-AS, RU 34984 2368 360 584 TELLCOM-AS, TR 212238 2051 146 1511 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1519 1852 14 TE-AS TE-AS, EG 62240 1488 98 746 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 11834 3240 584 UNINET, MX 10620 3523 486 970 Telmex Colombia S.A., CO 13999 2506 539 367 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1326 781 209 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1164 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1049 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1621 389 16 LINKdotNET-AS, EG 29571 1561 102 23 ORANGE-COTE-IVOIRE, CI 36992 1415 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 883 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 535 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 12950 39644 3975 AMAZON-02, US 8151 11834 3240 584 UNINET, MX 9808 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7756 1714 145 UNI2-AS, ES 7545 6215 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4393 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4265 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4174 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 11834 11250 UNINET, MX 9808 10325 10237 CHINAMOBILE-CN China Mobile Communications Grou 12479 7756 7611 UNI2-AS, ES 7545 6215 5557 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4393 4368 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4265 3989 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 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 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 /12:303 /13:582 /14:1215 /15:2144 /16:13929 /17:8241 /18:13639 /19:24476 /20:43629 /21:51538 /22:111659 /23:100946 /24:602617 /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 6689 7756 UNI2-AS, ES 8151 6036 11834 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2515 3378 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 12950 AMAZON-02, US 30036 2213 2553 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3523 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) ---------------------------------------------- 1:2340 2:1503 3:598 4:10 5:4554 6:162 7:6 8:1550 9:1 11:172 12:1372 13:346 14:2510 15:350 16:279 17:361 18:920 20:463 21:4 22:188 23:7297 24:3025 25:2 27:2731 29:19 31:3207 32:37 34:82 35:205 36:2399 37:4698 38:8888 39:898 40:154 41:4207 42:1981 43:2550 44:355 45:18402 46:4976 47:287 49:1988 50:1888 51:591 52:1556 54:300 55:1070 56:9 57:249 58:2201 59:1258 60:1167 61:2823 62:2893 63:1832 64:5490 65:2175 66:4586 67:3008 68:1116 69:3964 70:1110 71:614 72:2851 74:2801 75:1656 76:612 77:2696 78:1855 79:1735 80:2190 81:2022 82:2860 83:1389 84:1808 85:3368 86:1039 87:2150 88:1278 89:4324 90:782 91:8309 92:2792 93:2892 94:4010 95:4255 96:1423 97:314 98:992 99:738 100:71 101:1305 102:3619 103:32240 104:4809 105:730 106:998 107:2590 108:1201 109:4119 110:2229 111:3329 112:2039 113:1793 114:1945 115:2119 116:2039 117:2747 118:2873 119:1941 120:1874 121:1356 122:2738 123:2168 124:1608 125:2886 126:88 128:1544 129:951 130:1270 131:1869 132:777 133:451 134:1525 135:329 136:1276 137:1105 138:2894 139:1606 140:1554 141:1483 142:1817 143:1637 144:1058 145:480 146:2151 147:2094 148:2615 149:2885 150:1250 151:2026 152:2094 153:504 154:7894 155:1613 156:3305 157:1900 158:1272 159:2423 160:3558 161:1942 162:3701 163:1916 164:1694 165:2211 166:1409 167:1883 168:4048 169:786 170:5108 171:1001 172:4453 173:3217 174:910 175:1281 176:3678 177:4722 178:3821 179:2366 180:2572 181:4037 182:3363 183:2069 184:2292 185:21476 186:5104 187:4381 188:4215 189:4184 190:9626 191:1497 192:11127 193:9412 194:7763 195:5518 196:3248 197:3758 198:6054 199:8396 200:8050 201:6280 202:10341 203:10524 204:4516 205:3612 206:4578 207:3439 208:4182 209:5145 210:4508 211:2527 212:4501 213:3727 214:1055 215:48 216:6580 217:3087 218:1326 219:375 220:2103 221:1054 222:719 223:2319 End of report