103.203.158.0/23
🇯🇵IPv4APNICannouncedMOAS RPKI Invalid
CIDR
103.203.158.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇯🇵 Japan
City
Minato
RIR
APNIC
Status
announced
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
3 of 3 routesMOAS - 3 origin ASNs
RPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.203.158.0/23 | AS4775GLOBE-TELECOM-AS - Globe Telecoms | Invalid | — | 6/1/2026 |
| 103.203.158.0/23 | AS7713telkomnet-as-ap - PT Telekomunikasi Indonesia | Invalid | — | 6/1/2026 |
| 103.203.158.0/23 | AS45430SBN-AWN-IIG-AS-AP - SBN-IIG/AWN-IIG transit provider | Invalid | — | 6/1/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 103.203.158.0/23 | AS0 | /32 | apnic |
Origin ASNs (3)
AS4775MOAS
GLOBE-TELECOM-AS - Globe Telecoms
AS7713MOAS
telkomnet-as-ap - PT Telekomunikasi Indonesia
AS45430MOAS
SBN-AWN-IIG-AS-AP - SBN-IIG/AWN-IIG transit provider
Geolocation
API
Open https://api.ipctl.io/v1/prefix/103.203.158.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.203.158.0/23" | jq
External Links