Area Code 940 — Denton, Texas

NANP area code

940

UTC−6, UTC−5 during daylight saving

State
Texas
Primary city
Denton
Time zone
Central
In service
1997

The code reaches 94 communities and 23 counties across Texas.

Was this call legitimate?

The area code itself carries no risk signal. 940 is assigned to Denton, Texas, so a call from it is consistent with a real caller in that area — but the digits alone prove nothing, because they can be forged.

Caller ID is set by whoever places the call, not verified by the network. That is why neighbour spoofing works: an operation anywhere in the world can display a number that matches the area code — and often the first three digits after it — of the person being called, so the call looks local. Every community in the 940 territory is a plausible-looking origin for a forged 940 number, which is why one can be made to look like a neighbour to so many people.

If you did not recognise the call: let it go to voicemail — a legitimate caller with real business will leave one. Do not return the call using the number shown; look the organisation up independently and call the number you found. Never confirm personal details, card numbers, or one-time codes to someone who called you, however plausible the number looked.

Codes.zone publishes no complaint counts, risk scores, or caller identities. We hold no data on individual numbers and will not estimate what we cannot source.

Local time and when to call back

Time there now

Central · UTC−6, UTC−5 during daylight saving

Reasonable callback window

8:00 AM – 9:00 PM

local time in Central

Federal rules bar telemarketing calls to a residence outside 8:00 AM–9:00 PM in the called party's own time zone. It is a sensible bound for a personal callback too — and a caller who rang you well outside it was not observing it.

Overlay codes

940 is the only area code serving its territory — it has no overlay in the current numbering plan for Texas. Where a region has no overlay, a number's area code still corresponds to a single geographic area.

Cities served

largest 20 by ZIP count
Communities served by area code 940, ranked by how many ZIP codes each holds.
CityZIP codesCounty
Denton10Denton County
Wichita Falls8Wichita County
Euless2Tarrant County
Gainesville2Cooke County
Mineral Wells2Palo Pinto County
Rule2Haskell County
Vernon2Wilbarger County
Alvord1Wise County
Archer City1Archer County
Argyle1Denton County
Aspermont1Stonewall County
Aubrey1Denton County
Bellevue1Clay County
Benjamin1Knox County
Bluegrove1Clay County
Bowie1Montague County
Boyd1Wise County
Bridgeport1Wise County
Bryson1Jack County
Burkburnett1Wichita County

74 further communities not listed. All Texas area codes →

Each point is a community served by 940, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Scope every community matched to 940. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot), GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . Coordinates are place reference points, not boundaries.

Counties

Prefixes inside 940

We do not publish the NXX prefixes inside 940. The assignment of prefixes to rate centres comes from LERG routing data, which is proprietary, and we will not estimate it from postal data — ZIP codes and telephone prefixes do not map onto each other. Awaiting a clean-rights NPA-NXX source.