AS3257 87.84.240.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204887.84.240.0/2487.84.241.0/2487.84.242.0/2487.84.243.0/2487.84.244.0/2487.84.245.0/2487.84.246.0/2487.84.247.0/24