551 area code: location, time zone and current time in northern New Jersey

Key points about the 551 area code

• The 551 area code serves northeastern New Jersey.
• It uses Eastern Time (UTC-5 standard, UTC-4 in summer).
• 551 is an overlay of 201, introduced in 2001.
• It covers Bergen and Hudson counties near New York City.
• Jersey City is the largest city it serves.

551 area code at a glance

Where is the 551 area code?

The 551 area code is located in Northeastern New Jersey, United States. The 551 area code covers northeastern New Jersey, including Bergen and Hudson counties just across the river from New York City. It uses the Eastern Time Zone and was introduced in 2001 as an overlay of the 201 code.

Northern New Jersey sits across the state from Philadelphia. For the Philadelphia code, see the 215 area code (Philadelphia).

What time zone is the 551 area code in?

The 551 area code follows Eastern Time (ET). In practice that means UTC-5 (EST) and UTC-4 during daylight saving (EDT).

Current time in the 551 area code

The live local time below updates automatically every second and follows daylight saving rules for the region.

History of the 551 area code

The 551 area code went into service in 2001 as an overlay on top of the older 201 code in the densely populated northeastern corner of New Jersey. The overlay added numbering capacity for Bergen and Hudson counties without changing anyone’s existing number, and it brought ten-digit dialing to the region.

Nearby area codes

Cities covered by the 551 area code

Largest telephone carriers

The main networks providing service across the 551 area code include:

• Verizon
• AT&T
• T-Mobile
• Optimum Mobile

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