551 Area Code — North Jersey, New Jersey
Reviewed by Jordan Lee, Digital Safety Researcher — Last updated January 2026
About the 551 Area Code
Area code 551 serves North Jersey, New Jersey, a major coastal metropolitan area known for high telecommunications density and early adoption of advanced calling services. All major national carriers—AT&T Mobility, Verizon Wireless, and T-Mobile USA—operate extensive networks here. Jersey City and Paterson are the main hubs, and the area code runs on Eastern time.
Key Information
- Region: North Jersey
- State / Province: New Jersey
- Timezone: Eastern
- Major Cities: Jersey City, Paterson
Area Code Overview
Area code 551 was introduced in 2001 as an overlay for 201, sharing identical coverage across Hudson County and Bergen County in northeastern New Jersey — Jersey City, Hoboken, Hackensack, Paramus, Fort Lee, Englewood, and Teaneck. As an overlay code, 551 carries no geographic distinction from 201; newer numbers assigned in Hudson and Bergen counties since 2001 land in either 551 or 201 depending on availability. Compared to 201, 551 numbers skew toward more recently provisioned mobile and VoIP lines.
Bergen County, in the western portion of this territory, is one of the wealthiest counties in the United States and one of the most densely populated in New Jersey — its retail corridor along Routes 4 and 17 includes extensive Korean, South Asian, and Hispanic business communities. Hudson County, to the east, borders Manhattan directly and is home to significant Middle Eastern, South Asian, and Latin American immigrant communities alongside Jersey City's rapidly growing professional transplant population.
Scam Patterns in 551
Gold and Jewelry Exchange Fraud
Bergen County hosts one of the largest concentrations of gold dealers, jewelry exchanges, and gemstone importers in the Mid-Atlantic region — particularly in the Paterson and Hackensack corridor. Scam texts from 551 numbers impersonate established local gold dealers, offering to purchase gold, diamonds, or estate jewelry at above-market rates. Victims are directed to bring items to a meeting location where a bait-and-switch swap replaces real gold with plated imitations, or the buyer disappears after taking the item on "appraisal." The 551 code lends North Jersey legitimacy to what are otherwise traveling con schemes.
Bergen County Property Tax and Sheriff Sale Rescue Scams
New Jersey's property tax burden is among the highest in the nation, and Bergen County homeowners regularly face tax liability that pushes some into delinquency and sheriff sale territory. Scam texts from 551 numbers impersonate tax lien investors or "foreclosure rescue" services, offering to pay outstanding tax balances in exchange for quitclaim deed transfers or large upfront service fees. Homeowners in distress are particularly vulnerable to texts framed as coming from local NJ contacts.
Korean-American Community Banking Impersonation
Bergen County hosts the largest Korean-American community in New Jersey, with Palisades Park, Fort Lee, Leonia, and Ridgewood all having significant Korean-American populations. Scam texts in Korean impersonate Woori Bank, KEB Hana Bank, Shinhan Bank, or Korean-owned credit unions operating in the region, claiming account holds, wire transfer problems, or benefit enrollment deadlines. These texts exploit both the language barrier and cultural familiarity with Korean financial institutions, making them more convincing than English-language fraud targeting the same demographics.
VoIP and Spoofing Risk Assessment
Risk Level: HIGH
551's position as a post-2001 overlay code means its number pool is weighted toward mobile and VoIP assignments rather than legacy landlines. Bergen County's wealth profile makes it an attractive target for sophisticated financial fraud, while Hudson County's immigrant communities are targeted for culturally specific scams that bypass general fraud awareness. The gold and jewelry fraud pattern is particularly active in this area code because the region's genuine density of jewelry and gold dealers creates a plausible context for texts from unknown numbers.
What To Do If You Receive a Text From a 551 Number
Step 1: Verify any gold or jewelry buyer through in-person verification. Check for business registration with the Bergen County Clerk, look for Google Maps reviews, and verify any gold dealer through the Jewelers of America directory at jewelers.org before bringing items to any meeting arranged via text.
Step 2: Look up the number. Search at Who Sent That Text Message to check for prior reports, especially for gold exchange offers, property tax rescue pitches, or Korean-language banking alerts.
Step 3: Verify any property tax or foreclosure rescue offer with the NJ Division of Consumer Affairs. Foreclosure rescue scams are specifically regulated in New Jersey under the Foreclosure Rescue Fraud Prevention Act. Contact the NJ Division of Consumer Affairs at njconsumeraffairs.gov or call 1-800-242-5846 before signing any documents.
Step 4: Report. Forward to 7726 (SPAM). Report property fraud to the NJ Division of Consumer Affairs. Report Korean-language banking fraud to the FTC at reportfraud.ftc.gov and to the CFPB at consumerfinance.gov.
Frequently Asked Questions
What area code is 551?
Area code 551 serves Hudson County and Bergen County in northeastern New Jersey — including Jersey City, Hoboken, Hackensack, Fort Lee, Paramus, and Englewood — as an overlay for 201, introduced in 2001. Both 201 and 551 cover identical geographic territory.
Is area code 551 used for scams?
551 is a legitimate North Jersey area code sharing coverage with 201. Documented scam patterns include gold and jewelry exchange fraud exploiting Bergen County's dealer density, NJ property tax and sheriff sale rescue scams, and Korean-language banking impersonation targeting the area's Korean-American community. Verify any unknown 551 text involving financial transactions, property offers, or bank account alerts before responding.
How common is foreclosure rescue fraud in New Jersey, and how does it work?
New Jersey's high property taxes and lengthy foreclosure timelines make it a consistently high-target state for foreclosure rescue scams. Scammers typically contact homeowners behind on taxes or mortgage payments via text or mail, offer to "save" the property in exchange for transferring the deed or paying large fees, then either steal the home's equity or disappear after collecting fees. New Jersey's Foreclosure Rescue Fraud Prevention Act requires specific written disclosures from any for-profit entity offering foreclosure assistance — any rescue offer made via text that lacks these disclosures is a red flag.
Related Area Codes
- 201 — The original Northern NJ code (1947) that 551 overlays; identical geography covering Jersey City, Hoboken, and Bergen County.
- 973 — Northern NJ (Newark, Morristown, Passaic). Adjacent to 551/201 territory across Essex and Morris counties.
- 908 — Central-West NJ (Elizabeth, Union County). Borders 551/201 territory to the south.
Carriers & Network Type for 551 Numbers
Network mix: Mixed — 551 numbers include mobile, landline, and VoIP lines.
Common Scam Patterns
FCC complaint data for 551 numbers includes:
- Robocall/Auto-dialer
- Spoofed caller ID
- IRS/Government impersonation
- Tech support scam
If You Got a Text from 551
Who Typically Calls from the 551 Area Code?
Area code 551 serves North Jersey, New Jersey, a major coastal metropolitan area known for high telecommunications density and early adoption of advanced calling services. All major national carriers—AT&T Mobility, Verizon Wireless, and T-Mobile USA—operate extensive networks here. Jersey City and Paterson are the main hubs, and the area code runs on Eastern time. Calls from 551 numbers originate in North Jersey, New Jersey. Residents, local businesses, schools, medical offices, and government agencies in this region all use 551 numbers. If you received an unexpected call or text from a 551 number, it may be a neighbor, a local service provider, or — in some cases — an unwanted solicitor.
Because 551 is a legitimate, widely used area code, scammers sometimes spoof it to make their calls appear local and trustworthy. This technique — called neighbor spoofing — makes it more likely that recipients will answer. A reverse phone lookup is the fastest way to find out whether a 551 number is genuinely local or spoofed.
Is a 551 Phone Number Spam?
Not all 551 calls are spam, but the area code is not immune to robocall campaigns and phone scams. Common complaints about 551 numbers include warranty extension scams, debt collection harassment, IRS impersonation calls, and unsolicited insurance offers.
If a 551 number called you and didn't leave a voicemail, that's a red flag — legitimate callers typically leave a message. Use Who Sent That Text Message to look up the number instantly and see whether other users have flagged it as spam.
You can also report a suspicious 551 number directly from our lookup results, helping protect others in the community from the same caller.
Look Up a 551 Number Now
Enter any 551 area code phone number below and get instant results — carrier, line type, caller name (where available), and spam reports submitted by real users.
Other Area Codes in New Jersey
New Jersey has multiple area codes serving different regions. If the number you received isn't from 551, check one of the other New Jersey area codes below.
Related Scam Guides
In-depth guides on phone scams and how to protect yourself.