AS721 198.250.248.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048198.250.248.0/24198.250.249.0/24198.250.250.0/24198.250.251.0/24198.250.252.0/24198.250.253.0/24198.250.254.0/24198.250.255.0/24