138.9.4.0/23
🇺🇸CIDR
138.9.4.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
Stockton (Pacific)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 138.9.4.0/23 | AS18663UOP-AS - University of the Pacific | No ROA | — | 5/30/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 138.9.0.0/16 | AS18663UOP-AS - University of the Pacific | No ROA | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/138.9.4.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/138.9.4.0/23" | jq
External Links