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US area code · Texas

Area code 903

Where the 903 area code is, its overlay and how to dial a +1 903 number from anywhere.

CoversCorsicana, TexasTime zoneCentral (CT)TypeOverlay
Quick answer

The 903 area code is in Corsicana, Texas, United States (Central (CT)). To call from abroad: +1 903 555-0123. It is an overlay, so all 10 digits are dialled.

StateTexas
Main areaCorsicana
Time zoneCentral (CT)
TypeOverlay
10-digit dialingRequired
In service since26-May-1989

The 903 area code is a geographic North American Numbering Plan (NANP) code covering Corsicana, Texas. It has been in service since 26-May-1989 and sits in the Central (CT) time zone.

Overlay 903 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

903214430

How to dial a 903 number

From abroad+1 903 555-0123
Within the US / Canada1 903 555-0123
Locally (same area)903 555-0123

Cities in the 903 area code

A 903 number is usually in one of these places in Texas — 8 counties.

Corsicana NavarroDenison GraysonGreenville HuntLongview GreggMarshall HarrisonParis LamarSherman GraysonTexarkana BowieTyler Smith

Other Texas area codes

210214254281325346361409430432469512621682713726

Frequently asked questions

Where is the 903 area code?

The 903 area code is in Corsicana, Texas, United States (Central (CT)).

Is 903 an overlay area code?

Yes. 903 overlays the same region as 214, 430, so callers dial all 10 digits.

Do I have to dial 10 digits for 903?

Yes — dial the area code plus the seven-digit number.

How do I call a 903 number from another country?

Dial your exit code (or +), then 1, then 903, then the number: +1 903 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 903 number does not pinpoint a street or ZIP code.

Missed a call from +1 903?

In the 30 days to September 24, 2026, 1,476 unwanted calls showing a 903 number were reported to the US Federal Trade Commission, 80% of them recorded messages or robocalls. That puts 903 at #13 of 670 area codes reported.

Other523
Reducing your debt (credit cards, mortgage, student loans)507
Calls pretending to be government, businesses, or family and friends148
Medical & prescriptions124
Before you call back
  • If you do not know anyone in Texas, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 903 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 903 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 903:

Southwestern Bell 130Cellco Partnership Dba Verizon Wireless 96Frontier Southwest Inc Dba Frontier Comm Of Texas 89New Cingular Wireless PCS, LLC 70Level 3 Communications, LLC 64Brightspeed Of Eastern Texas, Inc. 42

About 25.3% of the 800 prefixes in use belong to mobile carriers: a 903 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 903 — cities & rate centres