133.106.0.0/21
🇯🇵CIDR
133.106.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 133.106.0.0/21 | AS2907SINET-AS - Research Organization of Information and Systems, National Institute of Informatics | No ROA | — | 6/13/2026 |
Origin ASN
AS2907
SINET-AS - Research Organization of Information and Systems, National Institute of Informatics
Geolocation
API
Open https://api.ipctl.io/v1/prefix/133.106.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/133.106.0.0/21" | jq
External Links