HomePrefix Lookup123.108.192.0/21

123.108.192.0/21

🇯🇵
CIDR
123.108.192.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
allocated
Allocated
2/9/2007

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
123.108.192.0/21AS9621II-OKINAWA - Okinawa Telecommunication Network Co.,Inc Valid
RADB
6/1/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
123.108.192.0/21AS9621/24apnic

IRR Route Objects

1
OriginRegistryMaintainerModified
AS9621RADBMAINT-AS96215/20/2025
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda
GEThttps://api.ipctl.io/v1/prefix/123.108.192.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/123.108.192.0/21" | jq