AS3257 149.235.40.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048149.235.40.0/24149.235.41.0/24149.235.42.0/24149.235.43.0/24149.235.44.0/24149.235.45.0/24149.235.46.0/24149.235.47.0/24