AS1239 208.31.40.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 2048208.31.40.0/24208.31.41.0/24208.31.42.0/24208.31.43.0/24208.31.44.0/24208.31.45.0/24208.31.46.0/24208.31.47.0/24