Area code 908: New Jersey
Area code 908 is a US state area code for New Jersey, on Eastern Time. It has 718 prefixes in service across 48 rate centers, the largest being Elizabeth, Somerville and Plainfield. NANPA lists no overlay code for it. Local calls there take 10 digits.
Local time in area code 908
America/New_York
Prefixes in service
718 of 792 possible
48 rate centers
Area code 908 facts
| Location | New Jersey, United States |
|---|---|
| Time zone | Eastern Time |
| Overlays | None |
| Split from | 201 |
| In service since | November 1, 1990 |
| Local calls | 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 908?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 908 rate centers with the most prefixes in service. 36 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Elizabeth | 83 |
| Somerville | 70 |
| Plainfield | 48 |
| Cranford | 38 |
| Summit | 37 |
| Unionville (Union) | 33 |
| Bernardsville | 27 |
| Linden | 27 |
| Clinton | 24 |
| Westfield | 23 |
| Peapack | 22 |
| Millington | 21 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 908 number?
NANPA's dialling plan for 908: local calls inside the code take 10 digits, toll calls 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 908 | 908-555-0147 |
|---|---|
| From another US or Canadian area code | 1-908-555-0147 |
| From outside North America | +1 908 555 0147 |
| E.164, for CRMs and SMS tools | +19085550147 |
When did area code 908 start?
Area code 908 went into service on November 1, 1990, split from 201. It has no overlay, so every number in its area still starts with it.
Tools for 908 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 908 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
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Area code 908 questions
- What state is area code 908?
- Area code 908 is in New Jersey, United States. Its largest rate centers by number of prefixes are Elizabeth, Somerville, Plainfield, Cranford and Summit.
- What time zone is area code 908 in?
- Eastern Time.
- Does area code 908 have an overlay?
- Not as of NANPA's file dated 10/16/2026. Every number in its area uses 908.
- When did area code 908 start?
- Area code 908 went into service on November 1, 1990, split from 201.
- Is a 908 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 908 have?
- 718 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in New Jersey
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.