66.28.0.0/16
Currently announced by AS174 Cogent Communications, Inc., in the routed prefix 66.28.0.0/16.
- Current ASN
- AS174
- Cogent Communications, Inc.
- Routed prefix
- 66.28.0.0/16
- Most specific route covering this prefix
- ASNs over time
- 1
- 1 announcement record
- RIR allocation
- ARIN
- United States · 66.28.0.0/16
Routing data · Nov 2, 2026, 10:24 UTC
ASN historyEvery routed prefix covering 66.28.0.0/16
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 66.28.0.0/16 | AS174 | Cogent Communications, Inc. |  United States | Before monitoring | 2026-11-02 10:24 | Announcing |
More specific routes5 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 66.28.50.0/24 | AS174 | Cogent Communications, Inc. | United States | Before monitoring | 2026-11-02 10:24 | Announcing |
| 66.28.99.0/24 | AS174 | Cogent Communications, Inc. | United States | Before monitoring | 2026-11-02 10:24 | Announcing |
| 66.28.182.0/24 | AS30666 | Xchange Telecom Corp. | United States | Before monitoring | 2026-11-02 10:24 | Announcing |
| 66.28.184.0/23 | AS26819 | Telos Online, Inc | United States | Before monitoring | 2026-11-02 10:24 | Announcing |
| 66.28.165.0/24 | AS25678 | Schiff, Hardin & Waite | United States | Before monitoring | 2026-10-27 00:19 | Stopped |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.