The Code Book of America: 1997 Through 1998

This state-by-state directory of US telephone area codes and postal zip codes will save time and money. It lists US localities of 5000 or more and has all the new area codes due to come on line this year. Also included are the most complete international telephone code guide available a super-handy listing of area codes by number and many other features. Comes in two sizes-Office size for next to the phone and Pocket size for on the road.