AS3257 74.199.200.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204874.199.200.0/2474.199.201.0/2474.199.202.0/2474.199.203.0/2474.199.204.0/2474.199.205.0/2474.199.206.0/2474.199.207.0/24