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Area code 856

Where 856 is, how it is dialed, which carriers hold its numbers and how many of its codes are in use, from NANPA's 10/01/2026 files.

State
NJ
In service
1999
Assigned codes
676of 800 possible
Carriers
45

About area code 856

NANPA lists 856 as an in-service geographic area code for New Jersey, first put into service on June 12, 1999. It is not part of an overlay, so every number in its territory starts with 856. It is in the Eastern time zone. The places with the most assigned exchanges include Camden, Haddonfield, Moorestown, Vineland, and Woodbury. By population, its largest named places are Camden, Gloucester, Vineland, Millville, and Bridgeton.

Area code 856: NANPA facts
ItemValue
StateNew Jersey
In service sinceJune 12, 1999
Assigned by NANPAMay 5, 1999
OverlayNo
Parent area code (NANPA)609
Time zoneEastern
Local calls within the codeten digits (area code plus number)
Assigned central office codes676
Rate centers with codes32
Carriers holding codes45
Pooled codes530
Codes assigned since 2020109
Relief planning in progressNo

Source: NANPA NPA report and utilized central office code file, both dated 10/01/2026.

Places served by 856

856 holds 12% of the 5,628 central office codes assigned in New Jersey, the 6th most of the state's 10 codes. 24 Census places could be matched to rate centers with 856 exchanges; the most populous are Camden (71,749), Gloucester (66,896), Vineland (62,070), and Millville (27,838). Each place page lists the exact prefixes and carriers for that town.

Most populous places with 856 exchanges
PlacePopulation (2024)Area codesExchangesCarriers
Camden, NJ71,749609, 8568635
Gloucester, NJ66,896856117
Vineland, NJ62,070609, 8564516
Millville, NJ27,838609, 856178
Bridgeton, NJ27,722609, 8562611
Glassboro, NJ24,322856168
Moorestown, NJ21,796609, 8566014
Collingswood, NJ14,344609, 8562110
Haddonfield, NJ12,707609, 8569117
Woodbury, NJ10,138609, 8563312
Pitman, NJ8,9438561610
Riverside, NJ8,146856127
Berlin, NJ7,6148561610
Haddon Heights, NJ7,588609, 8564412
Paulsboro, NJ6,31685696

Population: Census Vintage 2024 estimates for the matched place. Exchanges and carriers: NANPA utilized code file.

How calls are dialed in 856

According to NANPA's dialing-plan data, local calls within 856 are dialed as ten digits (area code plus number) and toll calls as ten digits (area code plus number). Because local calls need the area code, business cards, signage and website copy should always show the full ten-digit number. NANPA's dialing-plan note for this code reads: "Enforcement of mandatory dialing is 7/15/2022. 1+10 digit permissible at service provider discretion."

Carriers with 856 numbers

45 carriers hold the 676 central office codes assigned in 856. Verizon New Jersey, INC. has the most, with 174 (26%). 530 of the codes (78%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. The code holder is not necessarily the carrier serving a given number today, since numbers can be ported between providers.

Largest code holders in area code 856
Carrier (NANPA operating company)ExchangesShare
Verizon New Jersey, INC.17426%
Paetec Itel, LLC9013%
New Cingular Wireless PCS, LLC - DC436.4%
Mcimetro Access Transmission Services LLC - NJ426.2%
Onvoy, LLC - NJ426.2%
Omnipoint Communications Enterprises, LP416.1%
Level 3 Communications, LLC - NJ355.2%
Cellco Partnership d/b/a Verizon Wireless - NJ345.0%
Teleport Communications America, LLC - NJ314.6%
Bandwidth.com CLEC, LLC - NJ182.7%
Comcast Ip Phone, LLC162.4%
Metropcs, INC.142.1%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Local calling areas in 856

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 856 has codes in 32 rate centers. Rate center names in the file are abbreviations; where one matches a Census place, the table links to that city's local-number page.

Rate centers in area code 856 by assigned codes
Rate center (NANPA)PlaceCodes
CAMDENCamden, NJ80
HADDONFLDHaddonfield, NJ65
MOORESTOWNMoorestown, NJ54
VINELANDVineland, NJ44
WOODBURYWoodbury, NJ30
MERCHANTVLMerchantville, NJ30
HADDON HTSHaddon Heights, NJ28
WILLIAMSTNnot matched25
LAUREL SPGLaurel Springs, NJ24
BRIDGETONBridgeton, NJ21
MARLTONnot matched21
BLACKWOODnot matched20
COLLINGSWDCollingswood, NJ19
BEAVER BRKnot matched17
MULLICA HLnot matched17
BERLINBerlin, NJ16
PITMANPitman, NJ16
GLASSBOROGlassboro, NJ16
MILLVILLEMillville, NJ15
SWEDESBOROSwedesboro, NJ12
RIVERSIDERiverside, NJ12
PENNSGROVEPenns Grove, NJ12
GLOUCESTERGloucester, NJ11
SALEMSalem, NJ10
RIVERTONRiverton, NJ10

Top 25 of 32 rate centers.

Number supply in 856

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 676 are assigned in 856, 85% of 800. 109 were assigned in 2020 or later.

Area code 856: central office codes by decade assigned
Decade assignedExchangesShare
2000s10338%
2010s5922%
2020s10940%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Getting a 856 number for your business

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in area code 856 is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Frequently asked questions

Where is area code 856?

856 is a geographic area code in New Jersey. Places with the most assigned exchanges include Camden, Haddonfield, Moorestown, and Vineland.

What time zone is area code 856 in?

NANPA lists 856 in the Eastern time zone.

When did area code 856 go into service?

NANPA records an in-service date of June 12, 1999. The code was assigned on May 5, 1999.

Is 856 an overlay area code?

No. NANPA does not list 856 as part of an overlay.

Can my business get a 856 phone number?

Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 856 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.