AS397726 216.145.208.0/21 CIDR and IP Range Summary.ASN: 397726 - Mimecast North America IncHost Count: 2046Addressable IPs: 2048216.145.208.0/24216.145.209.0/24216.145.210.0/24216.145.211.0/24216.145.212.0/24216.145.213.0/24216.145.214.0/24216.145.215.0/24