199.181.122.0/23
🇺🇸CIDR
199.181.122.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
South San Francisco (El Camino)
RIR
ARIN
Status
allocated
Allocated
7/27/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.181.122.0/23 | AS19355SMRN-NET - San Mateo Regional Network, Inc. | No ROA | ARIN | 5/31/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionCalifornia
CitySouth San Francisco (El Camino)
Coordinates37.6555, -122.4370 ↗
API
Open https://api.ipctl.io/v1/prefix/199.181.122.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/199.181.122.0/23" | jq
External Links