551 Area Code
Northeastern New Jersey (overlay), New Jersey
Area code 551 is located in Northeastern New Jersey (overlay), New Jersey. It covers Jersey City, Hoboken, and surrounding areas in the Eastern time zone (UTC-5). Administered by NANPA.
Where is area code 551?
Area code 551 is located in Northeastern New Jersey (overlay), New Jersey. It covers Jersey City, Hoboken, and surrounding areas in the Eastern time zone (UTC-5).
Cities Covered by Area Code 551
Area code 551 primarily serves the Northeastern New Jersey (overlay) area of New Jersey. The exact coverage includes Jersey City, Hoboken, and Hackensack, along with surrounding communities and suburbs.
Time Zone
Eastern Time — UTC-5
Area code 551 operates in the Eastern Time Zone. When calling 551 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 551
Area code 551 was introduced in 2001 as a geographic area code serving Northeastern New Jersey (overlay), New Jersey. It remains the primary area code for this region. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.