AS1239 208.21.16.0/20 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 4094Addressable IPs: 4096208.21.16.0/24208.21.17.0/24208.21.18.0/24208.21.19.0/24208.21.20.0/24208.21.21.0/24208.21.22.0/24208.21.23.0/24208.21.24.0/24208.21.25.0/24208.21.26.0/24208.21.27.0/24208.21.28.0/24208.21.29.0/24208.21.30.0/24208.21.31.0/24