Texas · Central Time
Tyler, TX Area Codes
Tyler is served by 2 area codes (430, 903). Here's which is original, which are overlays, and how to pick one for a new local number.
Last updated October 3, 2026 · Source: NANPA
Area codes serving Tyler
Tyler sits in Texas, part of the South region and the Central Time zone. Its numbers are spread across an overlay of 2 codes that all cover the same ground: 430, 903.
The original code is 903 (in service since 1990). As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.
| Code | Area served | In service |
|---|---|---|
| 430 | Northeast Texas, including Tyler, Longview, Texarkana and Sherman | February 15, 2003 |
| 903 | Northeast Texas, including Tyler, Longview, Texarkana and Sherman | November 4, 1990 |
Nearby cities sharing these area codes
- Longview
- Texarkana
- Sherman
- Denison
- Paris
- Marshall
- Greenville
- Sulphur Springs
- Palestine
- Kilgore
- Jacksonville
- Athens
- Mount Pleasant
How to pick an area code for a new number
When you activate a new line in Tyler, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 903), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.
Dialing in Tyler
Because Tyler is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. From outside the US, dial +1, then the area code and number. See 10-digit dialing and overlay area codes for the background. For every code in Texas, visit the Texas area codes page.
Quick answers
Tyler area code FAQ
What area codes does Tyler use?
Tyler, TX is served by 2 area codes: 430, 903.
Which is the original Tyler area code?
903 is the original code for Tyler, in service since 1990; the others were added later for more numbers.
What time zone is Tyler in?
Tyler is in the Central Time zone.
Do I need to dial the area code in Tyler?
Yes. With multiple overlapping codes, 10-digit dialing is required for every call in this area.