Area code 903
Area code 903 serves Tyler and nearby parts of Texas, including Sherman, Longview and Marshall. It is on Central Time, which observes daylight saving time. 430 is an overlay for the same area.
Area code 903 at a glance
| State | Texas (TX) |
| Main city | Tyler |
| Time zone | Central Time |
| UTC offset | UTC−6 in winter, UTC−5 in summer |
| Daylight saving time | Yes |
| Overlay codes | 430 |
Cities in 903
- Tyler
- Sherman
- Longview
- Marshall
- Palestine
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 903 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 903 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 903 between |
|---|---|
| Eastern | 9:00 AM to 10:00 PM |
| Central | 8:00 AM to 9:00 PM |
| Mountain | 7:00 AM to 8:00 PM |
| Arizona | 6:00 AM to 7:00 PM |
| Pacific | 6:00 AM to 7:00 PM |
See the time in 903 without leaving your CRM
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Other area codes in Texas
Questions about 903
What time zone is area code 903?
Area code 903 is on Central Time. It observes daylight saving time.
Where is area code 903?
Area code 903 is in Texas. Its main city is Tyler, and it also covers Sherman, Longview, Marshall and Palestine.
What are the legal hours to call a 903 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 903?
430 covers the same area as 903, so numbers in the same town can have either code.