205.240.0.0/13
Currently announced by AS174 Cogent Communications, Inc., in the routed prefix 205.240.0.0/13.
- Current ASN
- AS174
- Cogent Communications, Inc.
- Routed prefix
- 205.240.0.0/13
- Most specific route covering this prefix
- ASNs over time
- 1
- 1 announcement record
- RIR allocation
- ARIN
- United States · 205.240.0.0/13
Routing data · Oct 23, 2026, 20:21 UTC
ASN historyEvery routed prefix covering 205.240.0.0/13
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 205.240.0.0/13 | AS174 | Cogent Communications, Inc. |  United States | Before monitoring | 2026-10-23 20:21 | Announcing |
More specific routes81 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 205.240.0.0/20 | AS3364 | Computer Systems Design Company | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.34.0/23 | AS19901 | Brightspeed | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.36.0/22 | AS209 | Lumen AS209 | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.42.0/23 | AS6222 | CenturyLink Communications, LLC | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.128.0/20 | AS8025 | BrightNet Oklahoma | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.192.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.208.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.224.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.240.240.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.40.0/24 | AS23005 | Switch, Ltd. | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.51.0/24 | AS174 | Cogent Communications, Inc. | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.64.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.80.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.96.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.112.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.128.0/19 | AS1299 | Arelion (Twelve99) |  Sweden | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.160.0/19 | AS1299 | Arelion (Twelve99) | Sweden | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.192.0/19 | AS1299 | Arelion (Twelve99) | Sweden | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.224.0/19 | AS1299 | Arelion (Twelve99) | Sweden | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.241.240.0/20 | AS4637 | Telstra (International) |  Hong Kong SAR China | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.92.0/23 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.92.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.93.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.176.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.177.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.178.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.179.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.180.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.181.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.182.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.183.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.184.0/21 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.184.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.185.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.186.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.187.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.188.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.189.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.190.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.191.0/24 | AS6428 | CDM | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.230.0/23 | AS13676 | GoNetSpeed | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.242.230.0/24 | AS13676 | GoNetSpeed | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.64.0/21 | AS40508 | Mid America Nazarene University | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.71.0/24 | AS40508 | Mid America Nazarene University | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.72.0/23 | AS11924 | Montana Opticom AS11924 | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.112.0/23 | AS17301 | Fastenal Company | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.114.0/23 | AS14828 | Hiawatha Broadband Communications, Inc | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.116.0/22 | AS14828 | Hiawatha Broadband Communications, Inc | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.120.0/21 | AS14828 | Hiawatha Broadband Communications, Inc | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.110.0/24 | AS5778 | CenturyLink Communications, LLC | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.148.0/22 | AS14813 | BB-COLUMBUS |  Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.148.0/23 | AS14813 | BB-COLUMBUS | Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.148.0/24 | AS14813 | BB-COLUMBUS | Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.149.0/24 | AS14813 | BB-COLUMBUS | Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.150.0/23 | AS14813 | BB-COLUMBUS | Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.150.0/24 | AS14813 | BB-COLUMBUS | Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.151.0/24 | AS14813 | BB-COLUMBUS | Barbados | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.244.194.0/23 | AS209 | Lumen AS209 | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.0.0/18 | AS2379 | CenturyLink Communications, LLC | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.2.0/24 | AS209 | Lumen AS209 | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.41.0/24 | AS209 | Lumen AS209 | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.44.0/24 | AS2379 | CenturyLink Communications, LLC | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.84.0/24 | AS400807 | BRYAN MUNICIPAL UTILITIES | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.85.0/24 | AS400807 | BRYAN MUNICIPAL UTILITIES | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.245.89.0/24 | AS18571 | The Western Reserve Mutual Casualty Company | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.18.0/24 | AS19643 | Network Synergy Corporation | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.28.0/24 | AS46567 | Border States Industries | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.64.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.80.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.96.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.112.0/20 | AS6079 | Astound | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.246.165.0/24 | AS174 | Cogent Communications, Inc. | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.0.0/20 | AS3257 | GTT Communications (AS3257) | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.24.0/22 | AS11140 | Behr Process | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.26.0/24 | AS11140 | Behr Process | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.31.0/24 | AS11722 | Westelcom Networks | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.31.0/24 | AS15065 | Slic Network Solutions, Inc | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.204.0/24 | AS26077 | Nextlink Broadband | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.247.0/24 | AS6222 | CenturyLink Communications, LLC | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.247.251.0/24 | AS6222 | CenturyLink Communications, LLC | United States | Before monitoring | 2026-10-23 20:21 | Announcing |
| 205.243.61.0/24 | AS174 | Cogent Communications, Inc. | United States | Before monitoring | 2026-10-23 04:19 | Stopped |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.