What is .PHB file extension?
Phone book file used by Motorola mobile phones; contains contacts, including names, phone numbers, and other address information; used to backup and restore user phone books.
PHB files can be created by 1) connecting to a Motorola phone via a USB port, and 2) backing up the phone book using the Motorola Phone Support Tool (PST).
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.