ASN 22843 - Proofpoint Inc.Organization : Proofpoint Inc.Total Countries Listed: 1Total IP Ranges Listed: 13United States of America - IP Ranges: 13IP Range List66.159.228.0/2467.231.152.0/2267.231.156.0/23148.163.136.0/21148.163.152.0/22148.163.158.0/23205.220.172.0/22205.220.176.0/21205.220.187.0/24208.83.137.0/24208.83.139.0/24208.84.67.0/24208.86.201.0/24