AS3257 208.81.128.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048208.81.128.0/24208.81.129.0/24208.81.130.0/24208.81.131.0/24208.81.132.0/24208.81.133.0/24208.81.134.0/24208.81.135.0/24