AS1239 204.251.40.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 2048204.251.40.0/24204.251.41.0/24204.251.42.0/24204.251.43.0/24204.251.44.0/24204.251.45.0/24204.251.46.0/24204.251.47.0/24