AS18220 203.11.8.0/21 CIDR and IP Range Summary.ASN: 18220 - Australian Defence OrganisationHost Count: 2046Addressable IPs: 2048203.11.8.0/24203.11.9.0/24203.11.10.0/24203.11.11.0/24203.11.12.0/24203.11.13.0/24203.11.14.0/24203.11.15.0/24