Avoid wasted postage and ensure timely receipt of all your outbound mail and overnight deliveries. The National ZIP Code Directory accommodates the constantly changing geographical make-up of the United States. This 2015 edition contains all the essential information you need to get your mail where it needs to go-including updated information on new residential numbers, new street names, and new ZIP Codes. Our two-volume set features the most complete, up-to-date ZIP information available. You can look up U.S. streets in large cities and post offices by ZIP Code (R), 3-Digit service area, and even national area code listings. The 2015 Edition includes: *More than 21,000 updated ZIP Codes (R), covering 151 million addresses, licensed directly from the United States Postal Service. *Easy-to-reference ZIP Code (R) look-up. You can search by city, state and street to avoid additional mail and overnight charges. *Completely updated U.S. telephone listing. You will save time and money on directory assistance fees with this easy-to-use guide. Published in two comprehensive volumes, the National ZIP Code Directory is designed to be easy to use, accurate, and up-to-date. In addition to ZIP Code listings: Volume 1 contains helpful instructions on how to find ZIP Codes in the Directory and how to properly address your mailings. Volume 2 contains useful information on symbol abbreviations, mail services, classes of mail, and much more.