AS18220 203.10.112.0/21 CIDR and IP Range Summary.ASN: 18220 - Australian Defence OrganisationHost Count: 2046Addressable IPs: 2048203.10.112.0/24203.10.113.0/24203.10.114.0/24203.10.115.0/24203.10.116.0/24203.10.117.0/24203.10.118.0/24203.10.119.0/24