HomePrefix Lookup203.133.240.0/21

203.133.240.0/21

🇯🇵
IPv4APNICallocatedAS10003OCT-NET - Ogaki Cable Television Co.,Inc.No ROA
CIDR
203.133.240.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
7/15/2005

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
203.133.240.0/21AS10003OCT-NET - Ogaki Cable Television Co.,Inc.No ROA
RADB
6/1/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS10003RADBMAINT-AS249711/13/2023
Origin ASN
AS10003
OCT-NET - Ogaki Cable Television Co.,Inc.
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda City
Coordinates35.6906, 139.7700 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/203.133.240.0/21

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/203.133.240.0/21" | jq
External Links
RIPEstat Hurricane Electric BGP