AS1239 199.1.72.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 2048199.1.72.0/24199.1.73.0/24199.1.74.0/24199.1.75.0/24199.1.76.0/24199.1.77.0/24199.1.78.0/24199.1.79.0/24