151.101.0.0/16
🇺🇸CIDR
151.101.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
San Francisco
RIR
ARIN
Status
allocated
Allocated
2/1/2016
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 151.101.0.0/16 | AS54113FASTLY - Fastly, Inc. | Valid | RADB | 5/31/2026 |
Covering Prefix
57 less-specific announcementsOrigin ASN
AS54113
FASTLY - Fastly, Inc.
Geolocation
This is an anycast prefix. The location shown is the organization HQ — actual server location varies by your network path.
Country🇺🇸United StatesUS
RegionCalifornia
CitySan Francisco
TimezoneAmerica/Los_Angeles
Coordinates37.7749, -122.4194 ↗
API
Open https://api.ipctl.io/v1/prefix/151.101.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/151.101.0.0/16" | jq
External Links