166.123.0.0/16
🇺🇸IPv4ARINallocatedAS13506US-DEPARTMENT-OF-THE-TREASURY - United States Department of the Treasury RPKI Valid
CIDR
166.123.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
San Jose
RIR
ARIN
Status
allocated
Allocated
12/29/1993
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.123.0.0/16 | AS13506US-DEPARTMENT-OF-THE-TREASURY - United States Department of the Treasury | Valid | ARINRADB | 5/30/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.123.204.0/24 | AS13506US-DEPARTMENT-OF-THE-TREASURY - United States Department of the Treasury | Valid | — | 5/30/2026 |
| 166.123.208.0/24 | AS13506US-DEPARTMENT-OF-THE-TREASURY - United States Department of the Treasury | Valid | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/166.123.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/166.123.0.0/16" | jq
External Links