AS3257 66.171.224.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 409666.171.224.0/2466.171.225.0/2466.171.226.0/2466.171.227.0/2466.171.228.0/2466.171.229.0/2466.171.230.0/2466.171.231.0/2466.171.232.0/2466.171.233.0/2466.171.234.0/2466.171.235.0/2466.171.236.0/2466.171.237.0/2466.171.238.0/2466.171.239.0/24