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US area code · Texas

903 area code

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.

Number holders in area code 903

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 800 prefixes are in use in 903, shared by 52 companies. The largest holders:

CompanyPrefixesShare
Southwestern Bell13016%
Cellco Partnership Dba Verizon Wireless9612%
Frontier Southwest Inc Dba Frontier Comm Of Texas8911%
New Cingular Wireless PCS, LLC709%
Level 3 Communications, LLC648%
Brightspeed Of Eastern Texas, Inc.425%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 903 numbers

Reports to the FTC, last 30 days
1,476
Recorded messages or robocalls
80%
Rank among area codes
#13 of 670
Most reported subjects
Other (523)
Reducing your debt (credit cards, mortgage, student loans) (507)
Calls pretending to be government, businesses, or family and friends (148)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

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

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