63.166.28.0/22
Currently announced by AS11924 Montana Opticom AS11924, in the routed prefix 63.166.28.0/22.
- Current ASN
- AS11924
- Montana Opticom AS11924
- Routed prefix
- 63.166.28.0/22
- Most specific route covering this prefix
- ASNs over time
- 2
- 2 announcement records
- RIR allocation
- ARIN
- United States · 63.160.0.0/12
Routing data · Oct 23, 2026, 00:24 UTC
ASN historyEvery routed prefix covering 63.166.28.0/22
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 63.166.28.0/22 | AS11924 | Montana Opticom AS11924 |  United States | Before monitoring | 2026-10-23 00:24 | Announcing |
| 63.160.0.0/12 | AS174 | Cogent Communications, Inc. | United States | Before monitoring | 2026-10-23 00:24 | Announcing |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 63.166.28.0/24 | AS11924 | Montana Opticom AS11924 | United States | Before monitoring | 2026-10-23 00:24 | Announcing |
| 63.166.29.0/24 | AS11924 | Montana Opticom AS11924 | United States | Before monitoring | 2026-10-23 00:24 | Announcing |
| 63.166.30.0/24 | AS11924 | Montana Opticom AS11924 | United States | Before monitoring | 2026-10-23 00:24 | Announcing |
| 63.166.31.0/24 | AS11924 | Montana Opticom AS11924 | United States | Before monitoring | 2026-10-23 00:24 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.