AS3257 66.253.32.0/19 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 8190Addressable IPs: 819266.253.32.0/2466.253.33.0/2466.253.34.0/2466.253.35.0/2466.253.36.0/2466.253.37.0/2466.253.38.0/2466.253.39.0/2466.253.40.0/2466.253.41.0/2466.253.42.0/2466.253.43.0/2466.253.44.0/2466.253.45.0/2466.253.46.0/2466.253.47.0/2466.253.48.0/2466.253.49.0/2466.253.50.0/2466.253.51.0/2466.253.52.0/2466.253.53.0/2466.253.54.0/2466.253.55.0/2466.253.56.0/2466.253.57.0/2466.253.58.0/2466.253.59.0/2466.253.60.0/2466.253.61.0/2466.253.62.0/2466.253.63.0/24