New Jersey · Eastern Time
908 Area Code
Area code 908 is in New Jersey, serving north-central and western New Jersey: Union, Somerset, Hunterdon and Warren counties. It is in the Eastern Time zone.
Last updated October 1, 2026 · Source: NANPA
Where is the 908 area code?
908 is a New Jersey area code covering north-central and western New Jersey: Union, Somerset, Hunterdon and Warren counties. In the wider directory it sits in the Northeast region.
Cities in the 908 area code
- Elizabeth
- Union
- Plainfield
- Linden
- Westfield
- Bridgewater
- Hillsborough
- Summit
- Cranford
- Somerville
- Phillipsburg
- Flemington
- Hackettstown
Counties served by 908
Union County, Somerset County, Hunterdon County and Warren County.
Dialing 908
Elizabeth, NJ is currently served by the single area code 908, with no overlay. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.
From outside the US, dial +1 908 followed by the seven-digit number.
History of the 908 area code
908 went into service on November 1, 1990, created when it was split from 201. It serves Elizabeth and the surrounding part of New Jersey. For how codes are created, split, and overlaid, see how area codes work.
Is 908 a scam or spam risk?
908 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 908 number on your screen is no guarantee the caller is in Elizabeth, NJ or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other New Jersey area codes
Explore more
See every code in New Jersey, compare codes across the Northeast region, or view all Eastern Time codes. You can also browse the 9XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
908 area code FAQ
Where is the 908 area code?
The 908 area code is in New Jersey, covering north-central and western New Jersey: Union, Somerset, Hunterdon and Warren counties, in the Northeast region.
What cities are in the 908 area code?
Cities in the 908 area code include Elizabeth, Union, Plainfield, Linden, Westfield, Bridgewater, Hillsborough, Summit, Cranford and Somerville.
What time zone is 908 in?
908 is in the Eastern Time zone.
When did the 908 area code start?
908 went into service on November 1, 1990.
Do I have to dial 10 digits for 908?
Ten-digit dialing always works, and many areas now require it; some local calls in this area may still connect with seven digits.
Is 908 a toll-free or premium code?
No. 908 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.