AS1239 63.166.16.0/21 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 2046Addressable IPs: 204863.166.16.0/2463.166.17.0/2463.166.18.0/2463.166.19.0/2463.166.20.0/2463.166.21.0/2463.166.22.0/2463.166.23.0/24