Houston, TX utilizes an area code overlay in which area codes 281, 346, 713, and 832 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Houston, TX area code information read more about area code 832 and 713 and 281 and 346 details and Texas area codes.
Houston, TX is located in Harris County and observes the Central Time Zone.
View our Times by Area Code tool.