AS3257 154.14.48.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048154.14.48.0/24154.14.49.0/24154.14.50.0/24154.14.51.0/24154.14.52.0/24154.14.53.0/24154.14.54.0/24154.14.55.0/24