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346 Area Code

Area Code Overview

Area code 346 is a geographic telephone area code in Texas that went into service on July 1, 2014. The geographic regions covered by this area code overlay has a population of approximately 3,453,395.

Overlay and Dialing Rules

  • Area Code: 346
  • State: Texas
  • Type: General Purpose Code
  • In Service Date: July 1, 2014
  • Overlay Complex: 281/346/621/713/832
  • 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 346

This area code is ranked 11th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 3rd out of 28.

7,101,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 346

Total assigned 7,101,000
Wireless
3,909,000 assigned
55.05%
Wireline and VoIP
2,784,000 assigned
39.21%
Other / Unclassified
408,000 assigned
5.75%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 346

Estimated assigned wireless phone numbers: 3,909,000

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

AERIAL COMMUNICATIONS, INC. 1,669,000 (42.70%)
AT&T Wireless 1,124,000 (28.75%)
Verizon Wireless 895,000 (22.90%)
T-Mobile 218,000 (5.58%)
Optimum Mobile 3,000 (0.08%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 346

Estimated assigned wireline and VoIP phone numbers: 2,784,000

Onvoy 1,134,000 (40.73%)
Bandwidth 434,000 (15.59%)
Comcast Business 234,000 (8.41%)
Spectrum 177,000 (6.36%)
AT&T 160,000 (5.75%)
Lumen 148,000 (5.32%)
Peerless Network 119,000 (4.27%)
Commio 103,000 (3.70%)
Telnyx 68,000 (2.44%)
Vonage 35,000 (1.26%)
LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 29,000 (1.04%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 27,000 (0.97%)

Other / Unclassified Assigned Numbering in Area Code 346

Estimated assigned other or unclassified phone numbers: 408,000

TELEPORT COMMUNICATIONS AMERICA, LLC - TX 174,000 (42.65%)
IP HORIZON LLC 88,000 (21.57%)
FRACTEL, LLC 44,000 (10.78%)
TON80 COMMUNICATIONS, LLC 32,000 (7.84%)
SHELCOMM 30,000 (7.35%)
USFON, INC. - TX 8,000 (1.96%)
IP GLOBAL NETWORKS - TX 6,000 (1.47%)
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 6,000 (1.47%)
HD CARRIER LLC 5,000 (1.23%)
STRATUS NETWORKS 3,000 (0.74%)
FIVE9, INC. 2,000 (0.49%)
AHOI LLC 1,000 (0.25%)

Cities and Towns in Area Code 346

Alvin, Texas Arcola, Texas Barker, Texas Baytown, Texas Beach City, Texas Brookshire, Texas Channelview, Texas Cleveland, Texas Crosby, Texas Cypress, Texas Deer Park, Texas Dickinson, Texas Friendswood, Texas Highlands, Texas Houston, Texas Huffman, Texas Humble, Texas Katy, Texas Kemah, Texas La Porte, Texas League City, Texas Liverpool, Texas Manvel, Texas Missouri City, Texas Mont Belvieu, Texas Pinehurst, Texas Porter Heights, Texas Porter, Texas Richmond, Texas Rosharon, Texas Satsuma, Texas Seabrook, Texas Sheldon, Texas Smith, Texas Splendora, Texas Spring, Texas Stafford, Texas Sugar Land, Texas Tomball, Texas Valley Lodge, Texas Westfield, Texas

These geographic regions are also served by area codes 281, 621, 713, and 832.

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 346, 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