The 856 area code covers Camden, Haddonfield and 27 more places in New Jersey.
Area code 856 is in New Jersey, on Eastern Time. In the 856 area, phone numbers are given out most in Camden County, then Gloucester and Burlington counties. It has been in service since June 12, 1999.
- Where
- 5 counties in New Jersey, mostly Camden County, Gloucester County and Burlington County
- Time zone
- Eastern Time
- In service since
- June 12, 1999
- Shares its area with
- No other area code
- Prefixes in use
- 676
- How to dial
- Local calls need all 10 digits: 856-555-0142.
Find out who called you from an 856 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (856) number is on today, use our free carrier lookup.
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Camden holds 12% of the phone prefixes in area code 856.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 676 prefixes in use shows where 856 numbers are actually given out.
- Camden80 prefixes, 12%
- Haddonfield65 prefixes, 10%
- Moorestown54 prefixes, 8%
- Vineland44 prefixes, 7%
- Merchantville30 prefixes, 4%
- Haddon Heights28 prefixes, 4%
- Williamstown25 prefixes, 4%
- Bridgeton21 prefixes, 3%
Also served: Marlton, Blackwood, Collingswood and Mullica Hill and 17 smaller places.
Of the carriers named here, PAETEC (Windstream) holds the most phone number prefixes in area code 856: 90 of 676.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 676 prefixes in use in 856 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| PAETEC (Windstream)Windstream's business phone network | 90 | 13% |
| AT&T MobilityMobile network | 43 | 6% |
| T-MobileMobile network | 41 | 6% |
| Level 3 (Lumen)Lumen's business and wholesale network | 35 | 5% |
| Teleport (AT&T)AT&T's business phone network | 31 | 5% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 18 | 3% |
| 37 other carriers | 418 | 62% |
78% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
856 has covered the same ground since 1999.
1999
856 starts on June 12, 1999, split off from 609.
An 856 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 856 are 609, 302 and 215.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 856.
Where is area code 856?
856 covers Camden, Haddonfield, Moorestown and Vineland and 25 more places in New Jersey. In the 856 area, phone numbers are given out most in Camden County, then Gloucester and Burlington counties.
What state is area code 856 in?
New Jersey. 856 is a New Jersey area code on Eastern Time.
What cities use area code 856?
The places holding the most 856 prefixes are Camden, Haddonfield, Moorestown, Vineland, Merchantville, Haddon Heights, Williamstown and Bridgeton, out of 29 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 856?
No single phone company owns 856. NANPA's records list its 676 prefixes across many carriers, and the ones named on this page include PAETEC (Windstream), AT&T Mobility and T-Mobile. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 856 in?
856 is on Eastern Time.
When did area code 856 start?
856 went into service on June 12, 1999, when it was split off from 609.
How do I dial an 856 number?
Local calls need all 10 digits: 856-555-0142.
Is 856 a toll-free number?
No. 856 is a regular area code for Camden and Haddonfield in New Jersey, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 856?
The closest are 609/640 (Atlantic City, New Jersey), 302 (Wilmington, Delaware), 215/267/445 (Philadelphia, Pennsylvania) and 610/484/835 (Philadelphia suburbs, Pennsylvania), measured between the centres of each area.
Who called me from an 856 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 856 a scam?
856 is a real New Jersey area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.