103.31.4.0/22
🇺🇸CIDR
103.31.4.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
City
San Francisco
RIR
APNIC
Status
allocated
Allocated
11/16/2012
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.31.4.0/24 | AS13335CLOUDFLARENET - Cloudflare, Inc. | Valid | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS13335 | APNIC | MAINT-CLOUDFLARE-AP | 6/10/2020 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 103.31.7.0/24 | 🇺🇸US | assigned | |
| 103.31.5.0/24 | 🇺🇸US | assigned | |
| 103.31.4.0/24 | AS13335 | 🇺🇸US | assigned |
| 103.31.6.0/24 | 🇺🇸US | assigned |
Origin ASN
AS139242
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/103.31.4.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.31.4.0/22" | jq
External Links