ZIP Code 99721 is located in the county of North Slope Borough in the state of Alaska. 99721 ZIP Code is spread between the coordinates of +68.1448801 Latitude and -151.73428175 Longitude. 99721 ZIP Code is part of the 907 area code. There is 1 postal office in zip code 99721.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 99721. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.