204.152.184.0/21
🇺🇸CIDR
204.152.184.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Palo Alto (University South)
RIR
ARIN
Status
allocated
Allocated
2/26/1997
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.152.184.0/21 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | No ROA | RADB | 5/30/2026 |
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.152.184.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.185.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.186.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.187.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.188.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.189.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.190.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
| 204.152.191.0/24 | AS1280ISC-AS-1280 - Internet Systems Consortium, Inc. | Valid | — | 5/30/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS1280 | RADB | MAINT-AS1280 | 11/13/2023 |
Geolocation
Country🇺🇸United StatesUS
RegionCalifornia
CityPalo Alto (University South)
Coordinates37.4457, -122.1610 ↗
API
Open https://api.ipctl.io/v1/prefix/204.152.184.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.152.184.0/21" | jq
External Links