NEW ORLEANS (AP) — In the era of mobile telephones, AT&T Inc. is trying to rid itself of a long-standing tradition in Louisiana: the familiar white pages of residential phone listings dropped on front porches and driveways.

The staff of the Louisiana Public Service Commission has recommended a plan under which white pages would be sent only to customers who specifically request the directory. AT&T customers also could request a CD-ROM of home listings for computer use.

The commission could vote on the proposal May 23.

The program wouldn’t affect the yellow pages, which is advertiser-supported, or the business version of the white pages, both of which would be delivered to all customers.