Detailed information about 166.57.64.0/23 WhatIsMyIP.com® » ASN » 19554 » 166.57.64.0/23 ASN 19554 - Open Text Corporation Number of IPs: 512 Number of Addressable Hosts: 510 IP Subnets in 166.57.64.0/23166.57.64.0/24166.57.65.0/24