whois 172.21.0.0
% This is the dn42 whois query service.
% Information related to 'inetnum/0.0.0.0_0':
inetnum: 0.0.0.0 - 255.255.255.255
cidr: 0.0.0.0/0
netname: NET-BLK0-DN42
policy: reserved
descr: * The entire IPv4 address space
mnt-by: DN42-MNT
status: ALLOCATED
source: DN42
% Information related to 'inetnum/172.20.0.0_14':
inetnum: 172.20.0.0 - 172.23.255.255
cidr: 172.20.0.0/14
netname: NET-BLK014-DN42
policy: reserved
mnt-by: DN42-MNT
status: ALLOCATED
source: DN42
% Information related to 'inetnum/172.21.0.0_16':
inetnum: 172.21.0.0 - 172.21.255.255
cidr: 172.21.0.0/16
netname: NET-BLK116-DN42
descr: DN42 native address space
remarks: Not free for direct assignments, please use sub-allocated blocks
nserver: b.delegation-servers.dn42
nserver: j.delegation-servers.dn42
nserver: k.delegation-servers.dn42
nserver: l.delegation-servers.dn42
ds-rdata: 64441 10 2 4cc085716ba83f18df1a7fb9f9479d10327e3d30e222c7a197109c7560ae0368
ds-rdata: 3096 10 2 506fd7f34aaad4df1b6cfa56fe8c00e157b1c32551c981def0c5fd8f65ab14ac
status: ALLOCATED
policy: reserved
org: ORG-DN42
mnt-by: DN42-MNT
source: DN42
% Information related to 'inetnum/172.21.0.0_24':
inetnum: 172.21.0.0 - 172.21.0.255
cidr: 172.21.0.0/24
netname: NET-ANY21-DN42
descr: Anycast services
remarks: * Reserved for anycast services, typically a /32 for each service
remarks: * Please ask on the mailing list for allocations in this range
policy: ask
mnt-by: DN42-MNT
status: ALLOCATED
source: DN42