AS721 55.232.0.0/13 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 524286Addressable IPs: 52428855.232.0.0/1655.232.0.0/1655.232.0.0/1655.232.0.0/1655.232.0.0/1655.232.0.0/1655.232.0.0/1655.232.0.0/16