AS721 204.223.112.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048204.223.112.0/24204.223.113.0/24204.223.114.0/24204.223.115.0/24204.223.116.0/24204.223.117.0/24204.223.118.0/24204.223.119.0/24