Area Code 903

Texas

Area code 903 serves Texas, primarily Tyler, in the Central Time (CT) time zone. It has served the region since 04-Nov-1990.

Overlay Area Code

This area code is part of an overlay region, meaning the same geographic area is served by multiple area codes. Overlay codes were introduced to meet growing demand for phone numbers without requiring existing customers to change their numbers.

This area code shares its geographic region with: area code 430 (Tyler).

In service since: 04-Nov-1990

Learn more about overlay and split area codes →

Demographics & Economics

Demographic Data Unavailable for Area Code 903

County-level demographic data is not available for this area code because NPA boundary polygons are not publicly distributed by NANPA. We use geographic boundary data from the Colorado Open Data Portal to map area codes to counties, which currently covers 194 of 376 geographic area codes.

Demographic statistics (population, income, education, poverty) require county-level aggregations from Census ACS data. Without a county mapping, these aggregations cannot be computed. We are actively seeking additional data sources to improve coverage.

Statistics are population-weighted aggregations from Census ACS 5-year estimates where county boundary data is available.See Sources for details.

Time Zone

Central Time (CT)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Central Time (CT)

Prefix Utilization

Geographic Coverage

State

Major Cities

Tyler
Longview
Sherman
Texarkana
Greenville
Denison
Corsicana
Paris
Marshall
Palestine
Sulphur Springs
Mount Pleasant
Jacksonville
Kilgore
Henderson
Athens
Bonham
Commerce
Whitehouse
Liberty
Carthage
Lindale
Gladewater
White Oak

and 188 more cities

Area Code 903 geographic coverage map (light mode)

Demographics

Detailed demographic and economic data is not yet available for area code 903.

History

Area code 903 was established in 1990 as a geographic area code. It shares its territory with area code area code 430.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 903).

County	Population	Share
Smith, TX	315,520	13.4%
Gregg, TX	163,333	6.9%
Upshur, TX	152,768	6.5%
Harrison, TX	139,504	5.9%
Grayson, TX	137,054	5.8%
Henderson, TX	128,365	5.4%
Hunt, TX	117,580	5.0%
Van Zandt, TX	97,913	4.1%
Bowie, TX	94,317	4.0%
Anderson, TX	85,077	3.6%
Rusk, TX	84,368	3.6%
Cherokee, TX	72,008	3.0%
Kaufman, TX	71,378	3.0%
Wood, TX	68,949	2.9%
Hopkins, TX	66,493	2.8%
Panola, TX	62,853	2.7%
Lamar, TX	55,958	2.4%
Navarro, TX	53,278	2.3%
Franklin, TX	48,832	2.1%
Fannin, TX	47,709	2.0%
Titus, TX	46,682	2.0%
Cass, TX	44,370	1.9%
Morris, TX	32,632	1.4%
Marion, TX	25,734	1.1%
Rains, TX	23,706	1.0%
Red River, TX	21,356	0.9%
Collin, TX	20,828	0.9%
Freestone, TX	17,097	0.7%
Delta, TX	16,826	0.7%
Leon, TX	16,477	0.7%
Camp, TX	14,923	0.6%
Houston, TX	6,577	0.3%
Cooke, TX	3,604	0.2%
Ellis, TX	3,313	0.1%
Limestone, TX	2,561	0.1%
Shelby, TX	2,072	0.1%
Miller, AR	1,110	0.0%
Hill, TX	245	0.0%

Area Code 903 Family Tree

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Total Codes

Splits

Overlays

Max Depth

All Descendants

Code ▲	State	Type	In Service	Parent
430	TX	overlay	15-Feb-2003	903

Area code 903 was originally assigned in 04-Nov-1990 to serve TX. Over the years, it has generated 1 descendant area code through a combination of geographic splits and overlays as demand for telephone numbers grew.