AS3257 199.58.224.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048199.58.224.0/24199.58.225.0/24199.58.226.0/24199.58.227.0/24199.58.228.0/24199.58.229.0/24199.58.230.0/24199.58.231.0/24