AS3257 208.116.248.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048208.116.248.0/24208.116.249.0/24208.116.250.0/24208.116.251.0/24208.116.252.0/24208.116.253.0/24208.116.254.0/24208.116.255.0/24