AS1239 208.4.144.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 2048208.4.144.0/24208.4.145.0/24208.4.146.0/24208.4.147.0/24208.4.148.0/24208.4.149.0/24208.4.150.0/24208.4.151.0/24