AS3257 217.206.224.0/19 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 8190Addressable IPs: 8192217.206.224.0/24217.206.225.0/24217.206.226.0/24217.206.227.0/24217.206.228.0/24217.206.229.0/24217.206.230.0/24217.206.231.0/24217.206.232.0/24217.206.233.0/24217.206.234.0/24217.206.235.0/24217.206.236.0/24217.206.237.0/24217.206.238.0/24217.206.239.0/24217.206.240.0/24217.206.241.0/24217.206.242.0/24217.206.243.0/24217.206.244.0/24217.206.245.0/24217.206.246.0/24217.206.247.0/24217.206.248.0/24217.206.249.0/24217.206.250.0/24217.206.251.0/24217.206.252.0/24217.206.253.0/24217.206.254.0/24217.206.255.0/24