AS3257 212.56.24.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048212.56.24.0/24212.56.25.0/24212.56.26.0/24212.56.27.0/24212.56.28.0/24212.56.29.0/24212.56.30.0/24212.56.31.0/24