Area code 201 serves the northeastern region of New Jersey, including cities like Jersey City, Hoboken, Hackensack, and Bayonne. It was the very first area code assigned in the North American Numbering Plan in 1947. Once covering the entire state, it now serves a concentrated urban corridor that borders New York City. The area is known for its cultural diversity, waterfront views of Manhattan, historic neighborhoods, and a fast-paced metropolitan lifestyle.