609 Area Code — Trenton, NJ
Area code 609 serves Trenton and 4 other cities in New Jersey. Local time follows America/New_York. It overlays with 640, so 10-digit dialling is required.
- State
- New Jersey
- Primary city
- Trenton
- Timezone
- America/New_York
- In service since
- 1958
- Type
- Geographic
- Overlay codes
- 640
Cities Served by 609
The 609 area code covers 5 cities and communities in New Jersey.
- Trenton
- Atlantic City
- Cherry Hill
- Hamilton
- Princeton
About Area Code 609
Area code 609 is a North American Numbering Plan (NANP) area code that has been in service since 1958. It is administered by NANPA on behalf of the FCC and serves the New Jersey region anchored on Trenton.
609 now shares its territory with an overlay code (640). 10-digit dialling is required for local calls within this region because the same 7-digit number can be assigned under either code.
Mobile numbers in 609 are portable: a person who moved away from Trenton may still carry a 609 mobile number on their device. If you receive an unexpected call from a 609 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in New Jersey, you may also interact with neighbouring or overlay codes (640). See the related codes section below to explore the rest of New Jersey.
Other New Jersey Area Codes
Continue exploring the New Jersey numbering plan.
609 Area Code FAQ
Where is area code 609?
Area code 609 is located in New Jersey, primarily serving Trenton and surrounding cities including Atlantic City, Cherry Hill, Hamilton. The region operates on ET (America/New_York) time.
What state is 609 area code?
609 is a New Jersey area code. It was put into service in 1958 and shares its geographic footprint with overlay code 640.
Is 609 a scam area code?
609 is a legitimate North American area code allocated by NANPA to New Jersey. Like any geographic area code, scammers sometimes spoof 609 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 609 use?
Area code 609 operates on ET (America/New_York). Numbers in this area code follow standard New Jersey time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 609 phone number?
Yes. Use the reverse lookup widget above to enter a full 609 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 609 and 640?
609 and 640 cover the same New Jersey geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.