inetnum:            172.23.16.0 - 172.23.23.255
cidr:               172.23.16.0/21
netname:            NET-BLK31621-DN42
descr:              Legacy NL-Zuid DN42 IPv4 reserve block
remarks:            Previously reserved for NL-Zuid infrastructure and exchanges
remarks:            2019-09-08 Policy set to closed as NL-Zuid no longer exists
policy:             closed
org:                ORG-DN42
mnt-by:             DN42-MNT
status:             ALLOCATED
source:             DN42