AS3257 206.231.224.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 4096206.231.224.0/24206.231.225.0/24206.231.226.0/24206.231.227.0/24206.231.228.0/24206.231.229.0/24206.231.230.0/24206.231.231.0/24206.231.232.0/24206.231.233.0/24206.231.234.0/24206.231.235.0/24206.231.236.0/24206.231.237.0/24206.231.238.0/24206.231.239.0/24