Zip Area Code

Area code 621

Area code 621 is a Texas area code, in service since January 23, 2025.

It was added as an overlay on 346: both codes serve the same area, so neighbors can have numbers in either one.

281, 713 and 832 serve the same area too.

Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

It is in the Central Time zone.

State
Texas
In service since
January 23, 2025
Overlays
281, 346, 713, 832
Local dialing
ten digits; dialing 1 plus ten digits also works
Time zone
Central Time
ZIP codes
2

Map

Map of the 621 area codeThe shaded area shows where 621 numbers are rated, with the neighboring area codes outlined around it.713936979Brookshire
Approximate 621 coverage, drawn from U.S. Census ZIP code areas and NANPA rate centers. Dashed lines are state borders.

Main cities in area code 621

Overlays and neighboring area codes

Overlays, serving the same area: 281, 346, 713, 832.

Neighboring area codes: 936, 979.

Counties in area code 621

Towns in area code 621