AS3257 195.81.144.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 4096195.81.144.0/24195.81.145.0/24195.81.146.0/24195.81.147.0/24195.81.148.0/24195.81.149.0/24195.81.150.0/24195.81.151.0/24195.81.152.0/24195.81.153.0/24195.81.154.0/24195.81.155.0/24195.81.156.0/24195.81.157.0/24195.81.158.0/24195.81.159.0/24