940 Area Code — Texas
940 is a North American Numbering Plan area code for Texas, the United States. It covers about 728,574 people in 86 towns and 106 ZIP codes, including Denton, Wichita Falls and Aubrey.
| Field | Value |
|---|---|
| Area code | 940 |
| Country | United States (+1) |
| State / province | Texas |
| Type | Standalone (no other NANP code covers the same towns) |
| Time zone | Central |
| Population covered | 728,574 |
| Towns covered | 86 |
| ZIP codes | 106 |
| Approx. centre | 33.483, -98.301 |
Where area code 940 is used
Area code 940 is assigned to Texas, the United States, inside the North American Numbering Plan. Numbers in the code are written (940) NXX-XXXX at home and +1 940 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Towns and cities in area code 940
The 86 towns below are the largest in the 940 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Denton | Denton County | 176,685 | 10 |
| Wichita Falls | Wichita County | 100,635 | 8 |
| Aubrey | Denton County | 62,127 | 1 |
| Argyle | Denton County | 43,587 | 1 |
| Gainesville | Cooke County | 29,419 | 2 |
| Justin | Denton County | 21,726 | 1 |
| Decatur | Wise County | 21,418 | 1 |
| Mineral Wells | Palo Pinto County | 21,080 | 2 |
| Sanger | Denton County | 18,155 | 1 |
| Iowa Park | Wichita County | 14,367 | 1 |
| Lake Dallas | Denton County | 13,657 | 1 |
| Graham | Young County | 12,999 | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Denton County | 18 |
| Wichita County | 11 |
| Wise County | 8 |
| Cooke County | 8 |
| Montague County | 7 |
| Clay County | 6 |
| Archer County | 6 |
| Haskell County | 6 |
| Palo Pinto County | 5 |
| Wilbarger County | 5 |
| Knox County | 4 |
| Young County | 4 |
Nearby area codes
How to dial area code 940
- Within North America: 940 + 7-digit number (940-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 940, then the 7-digit number — for example 00 1 940 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 940?
940 is a North American Numbering Plan area code assigned to Texas, the United States. It covers about 728,574 people in 86 towns.
Is 940 a US or Canadian area code?
940 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 940 in?
Area code 940 is in the Central time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.