IPv4 R&E Routing Table Report 23:05 GMT Sat 29 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: 975550 Prefixes after maximum aggregation (per Origin AS): 374241 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476542 Number of IPv4 prefixes with a valid ROA: 536624 Number of IPv4 prefixes with an invalid ROA: 656 Number of IPv4 prefixes with no ROA: 438270 Total ASes present in the Internet Routing Table: 76574 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65726 Origin ASes announcing only one prefix: 26872 Transit ASes present in the Internet Routing Table: 10848 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 1016 Number of instances of unregistered ASNs: 1021 Number of 32-bit ASNs allocated by the RIRs: 46117 Number of 32-bit ASNs visible in the Routing Table: 37967 Prefixes from 32-bit ASNs in the Routing Table: 199814 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: 459 Number of addresses announced to Internet: 3107570432 Equivalent to 185 /8s, 57 /16s and 195 /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: 320497 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255060 Total APNIC prefixes after maximum aggregation: 76283 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246805 Unique aggregates announced from the APNIC address blocks: 102652 APNIC Region origin ASes present in the Internet Routing Table: 14496 APNIC Prefixes per ASN: 17.03 APNIC Region origin ASes announcing only one prefix: 4427 APNIC Region transit ASes present in the Internet Routing Table: 1945 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 59 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10031 Number of APNIC addresses announced to Internet: 748671744 Equivalent to 44 /8s, 159 /16s and 211 /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: 288532 Total ARIN prefixes after maximum aggregation: 128507 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 289064 Unique aggregates announced from the ARIN address blocks: 137216 ARIN Region origin ASes present in the Internet Routing Table: 19199 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7033 ARIN Region transit ASes present in the Internet Routing Table: 1903 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: 5161 Number of ARIN addresses announced to Internet: 1349827328 Equivalent to 80 /8s, 116 /16s and 187 /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: 272287 Total RIPE prefixes after maximum aggregation: 132893 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270709 Unique aggregates announced from the RIPE address blocks: 173844 RIPE Region origin ASes present in the Internet Routing Table: 28860 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12056 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: 12340 Number of RIPE addresses announced to Internet: 732226304 Equivalent to 43 /8s, 164 /16s and 227 /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: 123452 Total LACNIC prefixes after maximum aggregation: 29220 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120119 Unique aggregates announced from the LACNIC address blocks: 48801 LACNIC Region origin ASes present in the Internet Routing Table: 11213 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2461 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: 9164 Number of LACNIC addresses announced to Internet: 171689984 Equivalent to 10 /8s, 59 /16s and 200 /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: 35203 Total AfriNIC prefixes after maximum aggregation: 6712 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48394 Unique aggregates announced from the AfriNIC address blocks: 13630 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.40 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 375 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: 1271 Number of AfriNIC addresses announced to Internet: 104920576 Equivalent to 6 /8s, 64 /16s and 246 /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 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6218 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4227 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 3267 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 848 535 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 12949 39643 3979 AMAZON-02, US 11492 4676 310 586 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3633 8766 961 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3381 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2973 1245 2197 AKAMAI-AS, US 396982 2946 3649 460 GOOGLE-CLOUD-PLATFORM, US 36352 2582 213 794 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 7722 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3885 3395 125 AKAMAI-ASN1, NL 9009 3771 325 1961 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 11899 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 22 Telefonica del Peru S.A.A., PE 11664 1163 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1046 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 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 910 1084 18 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 539 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 12949 39643 3979 AMAZON-02, US 8151 11899 3243 582 UNINET, MX 9808 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7722 1714 145 UNI2-AS, ES 7545 6218 843 655 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 4227 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 11899 11317 UNINET, MX 9808 10308 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7722 7577 UNI2-AS, ES 7545 6218 5563 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4227 4202 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 /14:1217 /15:2143 /16:13926 /17:8244 /18:13663 /19:24492 /20:43594 /21:51580 /22:111718 /23:100947 /24:602977 /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 6654 7722 UNI2-AS, ES 8151 6099 11899 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 2328 12949 AMAZON-02, US 30036 2219 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) ---------------------------------------------- 1:2332 2:1506 3:601 4:10 5:4575 6:163 7:6 8:1552 9:1 11:172 12:1372 13:352 14:2514 15:351 16:279 17:361 18:913 20:446 21:4 22:188 23:7300 24:3020 25:2 27:2718 29:19 31:3225 32:37 34:83 35:204 36:2394 37:4696 38:8893 39:899 40:154 41:4210 42:1910 43:2556 44:358 45:18464 46:4921 47:288 49:1984 50:1897 51:590 52:1554 54:301 55:1089 56:11 57:249 58:2190 59:1241 60:1171 61:2815 62:2911 63:1826 64:5480 65:2179 66:4573 67:3022 68:1118 69:3970 70:1109 71:613 72:2843 74:2798 75:1660 76:612 77:2706 78:1856 79:1723 80:2192 81:2016 82:2992 83:1413 84:1813 85:3368 86:1044 87:2149 88:1278 89:4328 90:778 91:8304 92:2793 93:2875 94:4041 95:4280 96:1423 97:313 98:992 99:740 100:71 101:1398 102:3718 103:32165 104:4807 105:748 106:993 107:2592 108:1201 109:4078 110:2229 111:3327 112:2038 113:1794 114:1958 115:2119 116:2032 117:2733 118:2845 119:1938 120:1870 121:1358 122:2730 123:2166 124:1608 125:2851 126:88 128:1550 129:948 130:1264 131:1896 132:766 133:451 134:1528 135:333 136:1279 137:1104 138:2882 139:1619 140:1557 141:1479 142:1824 143:1651 144:1059 145:515 146:2146 147:2097 148:2627 149:2889 150:1249 151:2041 152:2098 153:504 154:7900 155:1619 156:3281 157:1900 158:1266 159:2427 160:3550 161:1927 162:3706 163:1951 164:1692 165:2202 166:1421 167:1885 168:4038 169:793 170:5074 171:1002 172:4452 173:3229 174:909 175:1283 176:3690 177:4761 178:3816 179:2318 180:2572 181:4056 182:3372 183:2033 184:2290 185:21478 186:5099 187:4395 188:4198 189:4184 190:9615 191:1525 192:11145 193:9407 194:7780 195:5514 196:3284 197:3775 198:6060 199:8416 200:8050 201:6300 202:10324 203:10508 204:4523 205:3610 206:4572 207:3437 208:4183 209:5189 210:4498 211:2522 212:4490 213:3749 214:1045 215:48 216:6578 217:3089 218:1327 219:377 220:2086 221:1070 222:711 223:2318 End of report