Enhanced 9-1-1 - 911 Address

911 Address

A 911 address contains a uniform number, the street name, direction (if any) and the city. The address number is assigned usually by the grid of the existing community. Each county usually has their own guidelines on how the addressing is done, but for the most part NENA guidelines are followed. These guidelines are expressed by the Master Street Address Guide (MSAG). The actual 911 addresses and associated phone numbers are put into the ALI database.