103.21.244.0/24
🇺🇸CIDR
103.21.244.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
San Francisco
RIR
APNIC
Status
assigned
Allocated
-
AS0 discard ROA — upstream RPKI inconsistency
The only ROA covering this prefix names AS0, which means the issuing RIR has published the prefix as “not routable by any AS” (RFC 6483). If the RIR’s allocation records still point to a live operator, the ROA and the RDAP registration disagree — this is an upstream inconsistency in the issuing RIR’s own publications, not necessarily a hijack.
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.21.244.0/24 | AS13335CLOUDFLARENET - Cloudflare, Inc. | Invalid | — | 6/1/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.21.244.0/23 | AS8529OMANTEL-AS Zain Omantel International FZ-LLC | Invalid | — | 6/1/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 103.21.244.0/23 | AS0 | /23 | apnic |
Origin ASN
AS13335
CLOUDFLARENET - Cloudflare, 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/103.21.244.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.21.244.0/24" | jq
External Links