66.187.0.0/23
🇺🇸CIDR
66.187.0.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
San Francisco (South Beach)
RIR
ARIN
Status
allocated
Allocated
4/7/2021
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.187.0.0/23 | AS36321CSTL - Castle Global Inc. | Valid | ARINRADB | 5/31/2026 |
Origin ASN
AS36321
CSTL - Castle Global Inc.
Geolocation
Country🇺🇸United StatesUS
RegionCalifornia
CitySan Francisco (South Beach)
Coordinates37.7896, -122.4000 ↗
API
Open https://api.ipctl.io/v1/prefix/66.187.0.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.187.0.0/23" | jq
External Links