inetnum:            172.20.231.192 - 172.20.231.223
netname:            ATR-CORE
descr:              ATR Core Routing Network
country:            JP
admin-c:            ALLENZ-DN42
tech-c:             ALLENZ-DN42
mnt-by:             ATR-MNT
status:             ASSIGNED
cidr:               172.20.231.192/27
source:             DN42