AS1239 63.166.64.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 204863.166.64.0/2463.166.65.0/2463.166.66.0/2463.166.67.0/2463.166.68.0/2463.166.69.0/2463.166.70.0/2463.166.71.0/24