66.128.208.0/20
🇺🇸CIDR
66.128.208.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Aurora (Fitzsimons)
RIR
ARIN
Status
allocated
Allocated
2/27/2004
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.128.208.0/20 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | ARIN | 6/1/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.128.215.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
| 66.128.217.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
| 66.128.218.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
| 66.128.219.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
| 66.128.220.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
| 66.128.221.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
| 66.128.222.0/24 | AS32022CHC-AS - Children's Hospital Colorado | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS32022 | ARIN | MNT-CHD | - |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/66.128.208.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.128.208.0/20" | jq
External Links