AS3257 74.199.176.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 409674.199.176.0/2474.199.177.0/2474.199.178.0/2474.199.179.0/2474.199.180.0/2474.199.181.0/2474.199.182.0/2474.199.183.0/2474.199.184.0/2474.199.185.0/2474.199.186.0/2474.199.187.0/2474.199.188.0/2474.199.189.0/2474.199.190.0/2474.199.191.0/24