173.245.51.0/24 - Cloudflare (AS22061)
CIDR
173.245.51.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
San Francisco
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 173.245.51.0/24 | AS22061 CLOUDFLARE-MTC-CA - Cloudflare | Valid | ARIN | 2026-10-11 |
Origin ASN
AS22061
CLOUDFLARE-MTC-CA - Cloudflare
Related Prefixes
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 ↗
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/173.245.51.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/173.245.51.0/24" | jq
External Links