339 Area Code

The 339 area code is serving Boston’s inner suburbs along the Route 128 corridor, and some outer suburbs, especially in the South Shore region of Massachusetts.

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Area Code 339 Location: Massachusetts

The 339 area code covers most of the South Shore, and the suburbs along Route 128 and surrounding towns in Massachusetts.

Counties Served by Area Code 339:

  • Essex
  • Middlesex
  • Norfolk
  • Plymouth
  • Suffolk

Major Cities in the 339 Service Area:

  • Waltham
  • Woburn
  • Lynn
  • Weymouth
  • Dedham

Other Cities and Towns:

  • Abington
  • Arlington
  • Bedford
  • Braintree
  • Burlington
  • Canton
  • Cohasset
  • Duxbury
  • Halifax
  • Hanover
  • Hanson
  • Hingham
  • Holbrook
  • Hull
  • Kingston
  • Lexington
  • Lincoln
  • Lynnfield
  • Malden
  • Marblehead
  • Marshfield
  • Medford
  • Melrose
  • Nahant
  • Needham
  • Norwell
  • Norwood
  • Pembroke
  • Plympton
  • Randolph
  • Reading
  • Revere
  • Rockland
  • Saugus
  • Scituate
  • Sharon
  • Stoneham
  • Stoughton
  • Swampscott
  • Wakefield
  • Wellesley
  • Weston
  • Westwood
  • Whitman
  • Winchester

Overlay System

Area code 339 is an overlay complex code for the same service area as area code 781. Area code 781 was created in an area code split of area code 617 on September 1, 1997. Use of 781 became mandatory February 1, 1998. Area code 339 was activated on May 2, 2001. Since then, ten-digit dialing has been mandatory.

Area Code 339 Location Map

Area Code 339 Location on Massachusetts Map

Area code 339 is a general purpose code which was placed in service on May 2, 2001.

339 Area Code Prefixes

Our Massachusetts phone number lookup service will analyze the three-digit prefix of any 339 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Massachusetts geographic region, and local calling area associated with the phone number.

Phone numbers follow the following structure under the North American Numbering Plan:

  • NPA- area code (where the number was originally assigned)
  • NXX - Central office code that locates the specific neighborhood and identifies the service provider
  • XXXX - Subscriber number identifies the individual phone line within that local exchange

Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.

Prefixes by Company

Company Number of Prefixes
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 19
LEVEL 3 COMMUNICATIONS, LLC - MA 4
BROADVIEW NETWORKS, INC. - MA 2
CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 2
NEW CINGULAR WIRELESS PCS, LLC - DC 2
BANDWIDTH.COM CLEC, LLC - MA 1
COMCAST IP PHONE, LLC 1
METROPCS, INC. 1
OMNIPOINT MIAMI E LICENSE, LLC 1
VERIZON NEW ENGLAND INC. 1
VOXBEAM TELECOMMUNICATIONS INC. - MA 1

Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.

Prefixes by Rate Center

Rate Center Number of Prefixes
WOBURN 4
RANDOLPH 3
BRYANTVL 2
CANTON 2
MEDFORD 2
REVERE 2
ROCKLAND 2
WEYMOUTH 2
ARLINGTON 1
BURLINGTON 1
HINGHAM 1
KINGSTON 1
LEXINGTON 1
LYNN 1
MALDEN 1
MARBLEHEAD 1
MARSHFIELD 1
NEEDHAM 1
NORWOOD 1
SCITUATE 1
SHARON 1
WAKEFIELD 1
WALTHAM 1
WELLESLEY 1

Other Massachusetts Area Codes

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