Area Code 346

Area Code 346 History:

07/01/2014
Area code 346 was officially put into service on July 1, 2014 as an all services overlay of the existing area code overlay 832, 713 and 281.

Ten digit dialing (area code + seven digit number) is already necessary in the overlay because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Counties in Texas within area code 346 will include:

Brazoria County, Chambers County, Fort Bend County, Galveston County, Harris County, Liberty County, Montgomery County, and Waller County.

Major cities or places in Texas within area code 346 include:

Area code 346, along with area codes 832, 713 and 281, serve Houston and many surrounding suburbs and cities including the larger cities and communities of Alvin, Atascocita, Baytown, Channelview, Cloverleaf, Deer Park, Friendswood, Houston, La Porte, League City, Missouri City, Pasadena, Pearland, Rosenberg, Spring, Sugar Land, and The Woodlands.

The Public Utilities Commission of Texas has approved area code 621 as an all services overlay of area codes 281,346,713 and 832. Area code 621 will only become available to subscribers when all assignable central office codes in area codes 281,346,713 and 832 are assigned. The earliest date area code 621 will be put into service is January 23, 2025. Ten digit dialing (area code + seven digit number) will be necessary in the 281,346,621,713 and 832 overlay because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Ten digit dialing (area code + seven digit number) is already necessary in the overlay because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.