What area code is 551?
Here's everything about it.
Instant lookup for the 551 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
551 at a glance
Summary
Cities & regions served by 551
Jersey City (overlay)2 communities on record for 551.
Where 551 sits on the map
Overlay of 201Coverage area
About the 551 region
551 covers Jersey City in New Jersey, including Bergen County and Hudson County. The code has been in service since 2001.
551 itself is an overlay: it shares its territory with 201 and was introduced when those codes ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing is required across the region.
Overlaid on 201.
Who called me from 551?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 551 does not prove the caller is really in the 551 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 551 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 551 number below.
Frequently asked questions
FAQWhat area code is 551?+–
551 is a telephone area code serving Jersey City in New Jersey, United States, in service since 2001.
Where is area code 551 located?+–
It covers Bergen County and Hudson County in New Jersey.
What cities are in area code 551?+–
Major communities on record include Bergen County and Hudson County. The code's territory spans the Jersey City region of New Jersey.
What time zone is 551?+–
551 observes Eastern (ET), which is UTC−5 / −4 DST and follows daylight saving time.
When did area code 551 start?+–
551 entered service in 2001. Its history: overlaid on 201.
Why does area code 551 exist?+–
551 is an overlay of 201: it covers the exact same territory and was introduced when the original code ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing applies.
Is 551 a scam area code?+–
Scam and robocall traffic can use any North American code, 551 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 551 number, and report anything suspicious.
Can I get a 551 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 551 number regardless of where you physically live, although in an overlaid region you may be assigned 201 instead.