Area code 201 covers northeastern New Jersey, including cities like Jersey City, Hoboken, and Hackensack. Established in 1947 as one of the original North American area codes, 201 was the first to be assigned in the numbering system. Its proximity to New York City makes it a hub for commuters, finance professionals, and cultural institutions. Despite later splits creating additional area codes in New Jersey, 201 retains prestige and historical weight. Ten-digit dialing is required due to overlay code 551. Today, 201 is closely tied to both suburban life and metro-area influence, making it a valuable and recognizable code.