AS3257 216.132.128.0/18 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 16382Addressable IPs: 16384216.132.128.0/24216.132.129.0/24216.132.130.0/24216.132.131.0/24216.132.132.0/24216.132.133.0/24216.132.134.0/24216.132.135.0/24216.132.136.0/24216.132.137.0/24216.132.138.0/24216.132.139.0/24216.132.140.0/24216.132.141.0/24216.132.142.0/24216.132.143.0/24216.132.144.0/24216.132.145.0/24216.132.146.0/24216.132.147.0/24216.132.148.0/24216.132.149.0/24216.132.150.0/24216.132.151.0/24216.132.152.0/24216.132.153.0/24216.132.154.0/24216.132.155.0/24216.132.156.0/24216.132.157.0/24216.132.158.0/24216.132.159.0/24216.132.160.0/24216.132.161.0/24216.132.162.0/24216.132.163.0/24216.132.164.0/24216.132.165.0/24216.132.166.0/24216.132.167.0/24216.132.168.0/24216.132.169.0/24216.132.170.0/24216.132.171.0/24216.132.172.0/24216.132.173.0/24216.132.174.0/24216.132.175.0/24216.132.176.0/24216.132.177.0/24216.132.178.0/24216.132.179.0/24216.132.180.0/24216.132.181.0/24216.132.182.0/24216.132.183.0/24216.132.184.0/24216.132.185.0/24216.132.186.0/24216.132.187.0/24216.132.188.0/24216.132.189.0/24216.132.190.0/24216.132.191.0/24