New Jersey area codes
- Area codes in
- 10
- State
- New Jersey
- New Jersey is served by 10 area codes, from 201 in 1947 to 640 in 2018. 4 of them are overlays, added as older codes filled up.
- Updated 8 October 2026
Now in New Jersey
Eastern Time · UTC−5, UTC−4 in summer
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Eastern Time
Typical business hours, 9 to 5 Monday to Friday.
Typical business hours, 9 to 5 Monday to Friday, shown as the blue arc. A guide to when a real New Jersey office is likely to answer. It says nothing about who called you.
01
All area codes in New Jersey
New Jersey is served by 10 area codes. 201 is the oldest, in service since 1947; 640 is the newest, activated in 2018.
02
New Jersey area codes by city
These are the New Jersey cities served by more than one area code, or whose code also covers a wider area.
03
Overlay codes and dialling rules in New Jersey
4 of New Jersey’s 10 area codes are overlays — a second code laid over an existing footprint instead of splitting it. Wherever an overlay operates, local calls require the full ten-digit number.
04
Spam call reports in New Jersey
These New Jersey area codes drew the most reports to the FTC in the 30 days to 8 October 2026. The figures describe numbers displaying each code, which caller ID spoofing can fake.
Most reported New Jersey area codes · last 30 days
| # | Code | Primary city | Reports (30 days) |
|---|---|---|---|
| 1 | 856 | Camden | 959 |
| 2 | 609 | Trenton | 906 |
| 3 | 551 | Jersey City | 605 |
| 4 | 908 | Elizabeth | 569 |
| 5 | 201 | Jersey City | 568 |
| 6 | 732 | Toms River | 556 |
| 7 | 973 | Newark | 442 |
| 8 | 862 | Newark | 349 |
A number listed here may itself be a spoofing victim rather than the caller. These are unverified consumer reports.
Source: FTC Do Not Call Reported Calls Data, unverified consumer reports, retrieved 8 October 2026. Request a correction. Month-over-month figures appear once two complete 30-day windows exist.
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05
Questions
How many area codes does New Jersey have?
New Jersey has 10 area codes: 201, 551, 609, 640, 732, 848, 856, 862, 908, 973.
What is the main area code for Newark?
The main area code for Newark is 862.
Which New Jersey area code is oldest?
Area code 201 is the oldest in New Jersey, in service since 1947.
Do I need to dial ten digits in New Jersey?
Yes, wherever an overlay operates. 4 of New Jersey’s area codes are overlays, and local calls within an overlay area require the full ten-digit number.
Which New Jersey area code gets the most spam calls?
Area code 856 (Camden) drew the most reports of any New Jersey code in the 30 days to 8 October 2026, with 959 numbers reported.
Neighbouring states
Largest cities