66.186.208.0/20
🇺🇸CIDR
66.186.208.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Denver (North Capitol Hill)
RIR
ARIN
Status
allocated
Allocated
1/8/2021
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.186.208.0/20 | AS393552COL-LPC - Longmont Power & Communications | No ROA | ARIN | 6/1/2026 |
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.186.208.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.210.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.212.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.214.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.216.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.218.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.222.0/23 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
| 66.186.221.0/24 | AS393552COL-LPC - Longmont Power & Communications | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS393552 | ARIN | MNT-CL-651 | 8/4/2025 |
Geolocation
Country🇺🇸United StatesUS
RegionColorado
CityDenver (North Capitol Hill)
Coordinates39.7453, -104.9790 ↗
API
Open https://api.ipctl.io/v1/prefix/66.186.208.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.186.208.0/20" | jq
External Links