AS1239 207.42.136.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 2048207.42.136.0/24207.42.137.0/24207.42.138.0/24207.42.139.0/24207.42.140.0/24207.42.141.0/24207.42.142.0/24207.42.143.0/24