TEXAS · AREA CODE GUIDE
346 area code location: Houston and League City, Texas
- Local date and time
- Central Time
Map data: HSIP (2010) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 346 area code map
A printable area code 346 location map, with time zone and state. Use the PNG image in a document or slide; the SVG stays sharp at any size.
346 area code at a glance
- State
- Texas
- Primary cities
- Houston, League City, and Sugar Land
- Established
- Population
- Largest community: Houston, 2,397,315 (2025)Not an area-code population.
- Prefixes in service
- 736 as of 13 October 2026
An area code does not show where a caller is now.
History
Country and calling code: United States (+1).
Parent code: 832.
New code planned: No, as of 22 September 2026.
Time zone
- Central Time
- Standard time UTC−06:00
- Daylight saving time UTC−05:00
Counties and cities covered
346 numbers are issued across 45 communities. These are telephone exchange areas, which follow the phone network rather than city limits, so a place can sit just outside the boundary of the town it is named for.
Counties of the communities we could place (the code may reach further): Harris County, Fort Bend County, Chambers County, Galveston County, Montgomery County, Brazoria County, Waller County, Liberty County, and San Jacinto County.
- Houston
- League City
- Sugar Land
- Baytown
- Missouri City
- Friendswood
- La Porte
- Deer Park
- Alvin
- Katy
- Dickinson
- Manvel
- Stafford
- Humble
- Tomball
- Seabrook
- Mont Belvieu
- Cleveland
- Brookshire
- Beach City
- Kemah
- Arcola
- Splendora
- Liverpool
- Apollo
20 more communities
- Bammel
- Barker
- Channelview
- Crosby
- Cypress
- Highlands
- Houston Suburban
- Huffman
- Langham Creek
- Pinehurst
- Porter
- Porter Heights
- Richmond-Rosenberg
- Rosharon
- Satsuma
- Sheldon
- Smithers Lake
- Spring
- Valley Lodge
- Westfield
Notable places in 346
| Place | Where | What it is |
|---|---|---|
| Rice University | 7.8 km from Houston | University, 9,166 12-month enrollment (2023–24) |
| Reliant Stadium | 11.4 km from Houston | Stadium |
| George Bush Intercontinental Airport | 7.4 km from Humble | Commercial airport, 23,349,157 enplanements (2024) |
| University of Houston | 8.8 km from Houston | University, 51,967 12-month enrollment (2023–24) |
| Toyota Center | 4.7 km from Houston | Arena |
| William P. Hobby Airport | 15.9 km from Deer Park | Commercial airport, 7,116,967 enplanements (2024) |
| Museum of Fine Arts, Houston | 6.7 km from Houston | Museum |
| Daikin Park | 4.5 km from Houston | Stadium |
| The University of Texas MD Anderson Cancer Center | 8.7 km from Houston | University, 528 12-month enrollment (2023–24) |
| Port of Houston | 3.4 km from Seabrook | Port |
Also serving this area
Questions about 346
Where is the 346 area code?
346 is in Texas. Its numbers are issued in Houston, League City, Sugar Land, and 42 other communities.
What time zone is area code 346 in?
346 is in Central Time. Daylight saving time is observed.
Does 346 have an overlay?
Yes. 621 was added as an overlay on 346 on 23 January 2025.
Is 346 an overlay?
Yes. 346 was added as an overlay on 832 on 1 July 2014.
What cities are in the 346 area code?
Houston, League City, Sugar Land, Baytown, and Missouri City, and 40 other communities.
What state is area code 346 in?
Area code 346 is in Texas.
What counties are covered by area code 346?
Area code 346 covers communities in Harris County, Fort Bend County, Chambers County, Galveston County, Montgomery County, Brazoria County, Waller County, Liberty County, and San Jacinto County.
Is 346 a toll-free area code?
No. 346 is a geographic area code. The toll-free codes are 800, 833, 844, 855, 866, 877, and 888.
Sources: NANPA area code listing, NANPA places by area code, NANPA central office code assignments, U.S. Census Bureau population estimates, OMB metropolitan area delineations. Checked .
Business phone numbers in area code 346, answered by an AI agent
A local number for Houston, League City, and Sugar Land, Texas, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.