AS3257 87.86.224.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204887.86.224.0/2487.86.225.0/2487.86.226.0/2487.86.227.0/2487.86.228.0/2487.86.229.0/2487.86.230.0/2487.86.231.0/24