NPA - 551 (New Jersey)

The 551 area code is part of geographic numbering plan area that includes New Jersey.

There are a few special area codes with the last two digits 422 match, these are known as easily recognizable codes (ERCs). The 8xx set of numbers are reserved for toll-free services and communication.

New Jersey

Jersey City, across the Hudson River from Lower Manhattan, is the site of Liberty State Park

Also known as the Garden State, New Jersey has been a center for high-tech industry and invention throughout its existence. Originally settled by Native Americans, New Jersey has welcomed waves of immigrants, from the Dutch and English in the 1600s to Asians and Latin Americans today.

In more recent years, the Hudson-Bergen Light Rail and the River Line helped revitalize urban areas in North Jersey and South Jersey, revitalizing the economies along those routes. New Jersey may rank 47th in size, but it is 11th in population, making it the most densely populated state in the nation.