121.201.0.0/17
🇨🇳IPv4APNICassigned RPKI Invalid
CIDR
121.201.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇨🇳 China
City
Guangzhou
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
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
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.201.0.0/18 | AS58543CHINATELECOM-Guangdong-IDC - Guangdong | Invalid | — | 6/13/2026 |
| 121.201.64.0/18 | AS58543CHINATELECOM-Guangdong-IDC - Guangdong | Invalid | — | 6/13/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.201.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.201.0.0/17" | jq
External Links