IPv4 R&E Routing Table Report 23:05 GMT Wed 26 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: 975592 Prefixes after maximum aggregation (per Origin AS): 374184 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476077 Number of IPv4 prefixes with a valid ROA: 532142 Number of IPv4 prefixes with an invalid ROA: 1028 Number of IPv4 prefixes with no ROA: 442422 Total ASes present in the Internet Routing Table: 76590 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65730 Origin ASes announcing only one prefix: 26856 Transit ASes present in the Internet Routing Table: 10860 Transit-only ASes present in the Internet Routing Table: 531 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 978 Number of instances of unregistered ASNs: 982 Number of 32-bit ASNs allocated by the RIRs: 46097 Number of 32-bit ASNs visible in the Routing Table: 37984 Prefixes from 32-bit ASNs in the Routing Table: 199673 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: 462 Number of addresses announced to Internet: 3108226816 Equivalent to 185 /8s, 67 /16s and 199 /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: 320487 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255070 Total APNIC prefixes after maximum aggregation: 76268 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246868 Unique aggregates announced from the APNIC address blocks: 102615 APNIC Region origin ASes present in the Internet Routing Table: 14518 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4421 APNIC Region transit ASes present in the Internet Routing Table: 1944 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10051 Number of APNIC addresses announced to Internet: 748927488 Equivalent to 44 /8s, 163 /16s and 186 /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: 288612 Total ARIN prefixes after maximum aggregation: 128450 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 289220 Unique aggregates announced from the ARIN address blocks: 136865 ARIN Region origin ASes present in the Internet Routing Table: 19187 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7024 ARIN Region transit ASes present in the Internet Routing Table: 1904 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: 5156 Number of ARIN addresses announced to Internet: 1350246912 Equivalent to 80 /8s, 123 /16s and 34 /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: 272299 Total RIPE prefixes after maximum aggregation: 132846 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270690 Unique aggregates announced from the RIPE address blocks: 173713 RIPE Region origin ASes present in the Internet Routing Table: 28864 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12055 RIPE Region transit ASes present in the Internet Routing Table: 3974 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: 12337 Number of RIPE addresses announced to Internet: 732268288 Equivalent to 43 /8s, 165 /16s and 135 /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: 123517 Total LACNIC prefixes after maximum aggregation: 29273 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120143 Unique aggregates announced from the LACNIC address blocks: 48859 LACNIC Region origin ASes present in the Internet Routing Table: 11219 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2478 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: 171623936 Equivalent to 10 /8s, 58 /16s and 198 /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: 35116 Total AfriNIC prefixes after maximum aggregation: 6731 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 48209 Unique aggregates announced from the AfriNIC address blocks: 13630 AfriNIC Region origin ASes present in the Internet Routing Table: 1907 AfriNIC Prefixes per ASN: 25.28 AfriNIC Region origin ASes announcing only one prefix: 692 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: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1272 Number of AfriNIC addresses announced to Internet: 104925184 Equivalent to 6 /8s, 65 /16s and 8 /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 10329 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6217 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4284 530 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4219 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3268 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 2174 434 196 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 12939 39641 3978 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3636 8765 951 COGENT-174, US 6327 3623 1320 81 SHAW, CA 22773 3380 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2983 1250 2197 AKAMAI-AS, US 396982 2947 3665 459 GOOGLE-CLOUD-PLATFORM, US 36352 2565 213 797 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 7729 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 125 AKAMAI-ASN1, NL 9009 3763 325 1952 M247, RO 12389 3016 2303 889 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2061 147 1522 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1489 98 747 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 11901 3245 579 UNINET, MX 10620 3522 486 971 Telmex Colombia S.A., CO 13999 2511 539 369 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 1328 782 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1163 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1051 67 377 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 1620 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 903 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 548 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 12939 39641 3978 AMAZON-02, US 8151 11901 3245 579 UNINET, MX 9808 10329 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7729 1714 145 UNI2-AS, ES 7545 6217 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 9498 4284 530 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4219 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 11901 11322 UNINET, MX 9808 10329 10241 CHINAMOBILE-CN China Mobile Communications Grou 12479 7729 7584 UNI2-AS, ES 7545 6217 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4219 4194 FPT-AS-AP FPT Telecom Company, VN 11492 4675 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4284 4007 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 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 /12:303 /13:581 /14:1216 /15:2143 /16:13928 /17:8240 /18:13664 /19:24494 /20:43690 /21:51583 /22:111694 /23:101039 /24:602851 /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 6662 7729 UNI2-AS, ES 8151 6098 11901 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2516 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2327 12939 AMAZON-02, US 30036 2220 2560 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 2:1508 3:599 4:10 5:4570 6:163 7:6 8:1551 9:1 11:172 12:1371 13:348 14:2514 15:351 16:279 17:361 18:913 20:463 21:4 22:188 23:7298 24:3021 25:2 27:2718 29:19 31:3210 32:37 34:83 35:204 36:2397 37:4734 38:8880 39:899 40:154 41:4216 42:1909 43:2547 44:358 45:18445 46:4934 47:288 49:1987 50:1897 51:591 52:1555 54:301 55:1090 56:11 57:249 58:2186 59:1272 60:1169 61:2817 62:2916 63:1827 64:5490 65:2175 66:4574 67:3007 68:1118 69:3969 70:1109 71:612 72:2848 74:2804 75:1661 76:612 77:2690 78:1854 79:1720 80:2190 81:2017 82:2956 83:1414 84:1812 85:3361 86:1044 87:2147 88:1279 89:4326 90:781 91:8315 92:2799 93:2887 94:4087 95:4275 96:1425 97:315 98:994 99:740 100:71 101:1300 102:3703 103:32236 104:4804 105:733 106:998 107:2595 108:1200 109:3989 110:2229 111:3327 112:2039 113:1796 114:1949 115:2123 116:2033 117:2740 118:2856 119:1938 120:1871 121:1359 122:2736 123:2166 124:1608 125:2867 126:88 128:1540 129:954 130:1260 131:1894 132:772 133:451 134:1525 135:333 136:1276 137:1104 138:2883 139:1622 140:1565 141:1496 142:1819 143:1651 144:1061 145:512 146:2145 147:2099 148:2632 149:2894 150:1248 151:2034 152:2095 153:504 154:7868 155:1619 156:3265 157:1904 158:1266 159:2423 160:3548 161:1926 162:3705 163:1947 164:1694 165:2203 166:1419 167:1886 168:4042 169:791 170:5081 171:1002 172:4443 173:3231 174:910 175:1281 176:3681 177:4696 178:3817 179:2328 180:2569 181:4052 182:3371 183:2050 184:2289 185:21475 186:5093 187:4397 188:4220 189:4183 190:9619 191:1534 192:11149 193:9409 194:7775 195:5522 196:3236 197:3767 198:6062 199:8415 200:8026 201:6289 202:10328 203:10521 204:4538 205:3623 206:4578 207:3428 208:4183 209:5191 210:4511 211:2520 212:4499 213:3738 214:1050 215:46 216:6576 217:3096 218:1326 219:374 220:2079 221:1070 222:719 223:2321 End of report