AS1239 63.171.72.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 204863.171.72.0/2463.171.73.0/2463.171.74.0/2463.171.75.0/2463.171.76.0/2463.171.77.0/2463.171.78.0/2463.171.79.0/24