AS3257 83.245.48.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 409683.245.48.0/2483.245.49.0/2483.245.50.0/2483.245.51.0/2483.245.52.0/2483.245.53.0/2483.245.54.0/2483.245.55.0/2483.245.56.0/2483.245.57.0/2483.245.58.0/2483.245.59.0/2483.245.60.0/2483.245.61.0/2483.245.62.0/2483.245.63.0/24