137.164.121.0/24
🇺🇸CIDR
137.164.121.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Cypress
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 137.164.121.0/24 | AS23489MARINK12 - Marin County Office of Education | No ROA | RADB | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 137.164.0.0/16 | AS2152CENIC-2152 - CENIC | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS23489 | RADB | MAINT-AS2150 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/137.164.121.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/137.164.121.0/24" | jq
External Links