Area code 862 is an overlay for 973, serving northeastern New Jersey, including cities like Newark, Paterson, and Morristown. Introduced in 2001, the region includes key transportation hubs, cultural centers, and suburbs of New York City. It is densely populated and economically diverse, with a strong mix of residential, commercial, and industrial activity. Ten-digit dialing is mandatory. While 973 has more legacy familiarity, 862 is essential in supporting continued growth in one of the most vital parts of the New York metropolitan area.