AS3257 212.74.0.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048212.74.0.0/24212.74.1.0/24212.74.2.0/24212.74.3.0/24212.74.4.0/24212.74.5.0/24212.74.6.0/24212.74.7.0/24