ASN 11971 - Pfizer Inc.Organization : Pfizer Inc.Total Countries Listed: 1Total IP Ranges Listed: 16United States of America - IP Ranges: 16IP Range List146.240.1.0/24148.168.0.0/18148.168.65.0/24148.168.66.0/23148.168.68.0/22148.168.72.0/22148.168.77.0/24148.168.78.0/23148.168.84.0/22148.168.88.0/21148.168.128.0/18148.168.192.0/20148.168.208.0/21148.168.218.0/24148.168.220.0/22148.168.224.0/19