204.9.100.0/22
🇺🇸CIDR
204.9.100.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
City
Denver (Lincoln Park)
RIR
ARIN
Status
allocated
Allocated
9/29/2004
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.9.100.0/22 | AS23458DHH-AUTHORITY - Denver Health and Hospital Authority | No ROA | RADB | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.9.100.0/24 | AS23458DHH-AUTHORITY - Denver Health and Hospital Authority | No ROA | — | 5/31/2026 |
| 204.9.101.0/24 | AS23458DHH-AUTHORITY - Denver Health and Hospital Authority | No ROA | — | 5/31/2026 |
| 204.9.102.0/24 | AS23458DHH-AUTHORITY - Denver Health and Hospital Authority | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS23458 | RADB | MAINT-AS23458 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/204.9.100.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.9.100.0/22" | jq
External Links