Area code 973 serves northern New Jersey, including cities such as Newark, Paterson, Clifton, and Morristown. Established in 1997 from a split with 201 and overlaid by 862 in 2001, it covers a densely populated and highly urbanized part of the New York City metro area. The region includes major transportation hubs and historic towns. Ten-digit dialing is mandatory. Area code 973 has deep cultural and industrial roots and is frequently associated with New Jersey’s tough, fast-paced urban energy and commuter lifestyle.