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It was renamed in 2006 to the current AT&T Advertising, L.P. Pacific Bell Directory still exists today to serve as the directory publisher of the AT&T Real Yellow Pages for Pacific Bell and Nevada Bell customers. In 2012, Pacific Bell Directory was spun off as part of the AT&T-Cerberus joint venture YP Holdings.

A "white pages" telephone directory A telephone directory, commonly called a telephone book, telephone address book, phone book, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory.

A telephone exchange name or central office name was a distinguishing and memorable name assigned to a central office. It identified the switching system to which a telephone was connected. Each central office served a maximum of 10,000 subscriber lines identified by the last four digits of the telephone number.