339 Area Code

Area Code Overview

Area code 339 is a geographic telephone area code in Massachusetts that went into service on May 2, 2001. The geographic regions covered by this area code overlay has a population of approximately 1,137,619.

Overlay and Dialing Rules

  • Area Code: 339
  • State: Massachusetts
  • Type: General Purpose Code
  • In Service Date: May 2, 2001
  • Overlay Complex: 339/781
  • Local Dialing Plan: This area does require you to dial the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 339

This area code is ranked 330th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 8th out of 9.

835,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 339

Total assigned 835,000
Wireless
236,000 assigned
28.26%
Wireline and VoIP
542,000 assigned
64.91%
Other / Unclassified
57,000 assigned
6.83%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 339

Estimated assigned wireless phone numbers: 236,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

Verizon Wireless 105,000 (44.49%)
T-Mobile 72,000 (30.51%)
AT&T Wireless 49,000 (20.76%)
MASS MOBILE LLC 10,000 (4.24%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 339

Estimated assigned wireline and VoIP phone numbers: 542,000

Onvoy 264,000 (48.71%)
Lumen 66,000 (12.18%)
Bandwidth 51,000 (9.41%)
Spectrum 42,000 (7.75%)
Comcast Business 23,000 (4.24%)
Peerless Network 21,000 (3.87%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 14,000 (2.58%)
Telnyx 13,000 (2.40%)
YMAX COMMUNICATIONS CORP. - MA 13,000 (2.40%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 10,000 (1.85%)
PAETEC ITEL, LLC 8,000 (1.48%)
Commio 7,000 (1.29%)

Other / Unclassified Assigned Numbering in Area Code 339

Estimated assigned other or unclassified phone numbers: 57,000

IP HORIZON LLC 13,000 (22.81%)
TON80 COMMUNICATIONS, LLC 12,000 (21.05%)
FRACTEL, LLC 11,000 (19.30%)
HD CARRIER LLC 11,000 (19.30%)
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 6,000 (10.53%)
TC SYSTEMS, INC. 4,000 (7.02%)

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 339, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm