Area code 903 is an important telephone area code in the state of Texas, covering a large portion of the northeastern region. If you’ve received a call from a 903 number or are planning to move to this area, understanding its coverage, history, and major cities can be helpful. This guide explains everything you need to know about area code 903 in a simple and clear way.
Where Is Area Code 903 Located?
Area code 903 primarily serves the northeastern part of Texas, just east and north of the Dallas–Fort Worth metroplex. It stretches across more than 30 counties, reaching all the way to the borders with Oklahoma, Arkansas, and Louisiana. The region includes both urban centers and rural communities.
Some of the main cities and towns covered under area code 903 include:
- Tyler
- Longview
- Texarkana
- Sherman
- Greenville
- Paris
- Marshall
- Athens
The area code also serves many smaller towns and rural communities, making it a widely used code across East Texas.
History of Area Code 903
Area code 903 was created in 1990 as a split from area code 214. Before this change, all of these regions were part of 214, which covered a large portion of northern Texas, including Dallas.
Due to population growth and increased demand for phone numbers in the Dallas region, a new area code was needed. That’s when 903 was introduced to ensure enough numbers were available for residents and businesses in the eastern part of the state. In 2003, area code 430 was added as an overlay covering the same region, which means both 903 and 430 now serve the same area.
Time Zone of Area Code 903
Area code 903 follows the Central Time Zone (CT), which is the same time zone used across most of Texas. This includes:
- Central Standard Time (CST)
- Central Daylight Time (CDT) during daylight saving
This is important for businesses and individuals who communicate with people in different states.
Major Cities and Their Importance
1. Tyler
Tyler is one of the largest cities in the 903 area code and is known as the “Rose Capital of America.” It has a strong economy based on healthcare, education, oil and gas, and the famous Texas Rose Festival held every fall.
2. Longview
Longview is a major city in East Texas with deep roots in the oil and gas industry, dating back to the 1930s oil boom. It also plays an important role in manufacturing and timber production for the region.
3. Texarkana
Texarkana sits on the border between Texas and Arkansas, making it one of the most unique cities in the region. It serves as a key hub for trade, transportation, and healthcare across two states.
4. Sherman
Sherman is a fast-growing city north of Dallas and serves as the county seat of Grayson County. It has become an important center for manufacturing, education, and technology in northeastern Texas.
Who Uses Area Code 903?
Area code 903 is used by:
- Residents living in northeastern Texas
- Small and large businesses
- Government offices and institutions
- Educational institutions
- Oil, gas, timber, and manufacturing industries across East Texas
Whether it’s a personal phone number or a business line, 903 is widely recognized in the region.
Is Area Code 903 Running Out?
Area code 903 came close to running out of numbers in the early 2000s, which led to the introduction of area code 430 as an overlay in 2003. Together, 903 and 430 now provide enough numbering capacity to support the region for many years to come, even as population and mobile usage continue to grow.
How to Dial Area Code 903
If you are calling a 903 number:
- From within the U.S.: Dial 1 + 903 + the 7-digit number
- From outside the U.S.: Dial +1 903 + the phone number
Since the 430 overlay was introduced, ten-digit dialing has been mandatory for all local calls within the 903 area code, so always include the area code even when calling locally.
Final Thoughts
Area code 903 is a key part of the telecommunications network in northeastern Texas. Covering cities like Tyler, Longview, Texarkana, and Sherman, it serves a unique mix of growing urban centers, historic small towns, and peaceful rural communities. Since its creation in 1990, it has supported communication needs for millions of residents and businesses.
Whether you’re receiving calls from this area or planning to relocate, understanding area code 903 gives you a better idea of the vibrant region it represents.
