The 940 area code covers Wichita Falls, Denton and 71 more places in Texas.
Area code 940 is in Texas, on Central Time. In the 940 area, phone numbers are given out most in Denton County, then Wichita and Wise counties. It has been in service since May 25, 1997.
- Where
- 8 counties in Texas, mostly Denton County, Wichita County and Wise County
- Time zone
- Central Time
- In service since
- May 25, 1997
- Shares its area with
- No other area code
- Prefixes in use
- 506
- How to dial
- Local calls need all 10 digits: 940-555-0142.
Find out who called you from a 940 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (940) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Wichita Falls holds 17% of the phone prefixes in area code 940.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 506 prefixes in use shows where 940 numbers are actually given out.
- Wichita Falls84 prefixes, 17%
- Denton79 prefixes, 16%
- Decatur15 prefixes, 3%
- Gainesville14 prefixes, 3%
- Mineral Wells14 prefixes, 3%
- Aubrey13 prefixes, 3%
- Bowie11 prefixes, 2%
- Lake Dallas11 prefixes, 2%
Also served: Burkburnett, Graham, Vernon and Argyle and 61 smaller places.
Southwestern Bell (AT&T) holds the most phone number prefixes in area code 940: 49 of 506.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 506 prefixes in use in 940 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Southwestern Bell (AT&T)AT&T's landline company | 49 | 10% |
| AT&T MobilityMobile network | 45 | 9% |
| FrontierLandline company | 29 | 6% |
| BrightspeedLandline company | 28 | 6% |
| Level 3 (Lumen)Lumen's business and wholesale network | 28 | 6% |
| WindstreamLandline company | 25 | 5% |
| 48 other carriers | 302 | 60% |
73% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
940 has covered the same ground since 1997.
1997
940 starts on May 25, 1997, split off from 817.
A 940 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 940 are 817, 214 and 580.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Texas has 28 other area codes.
These are the questions people ask most about area code 940.
Where is area code 940?
940 covers Wichita Falls, Denton, Decatur and Gainesville and 69 more places in Texas. In the 940 area, phone numbers are given out most in Denton County, then Wichita and Wise counties.
What state is area code 940 in?
Texas. 940 is a Texas area code on Central Time.
What cities use area code 940?
The places holding the most 940 prefixes are Wichita Falls, Denton, Decatur, Gainesville, Mineral Wells, Aubrey, Bowie and Lake Dallas, out of 73 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 940?
No single phone company owns 940. NANPA's records show Southwestern Bell (AT&T) holds the most 940 prefixes, 49 of 506, followed by AT&T Mobility and Frontier. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 940 in?
940 is on Central Time.
When did area code 940 start?
940 went into service on May 25, 1997, when it was split off from 817.
How do I dial a 940 number?
Local calls need all 10 digits: 940-555-0142.
Is 940 a toll-free number?
No. 940 is a regular area code for Wichita Falls and Denton in Texas, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 940?
The closest are 817/682 (Arlington, Texas), 214/972/469/945 (Dallas, Texas), 580 (Lawton, Oklahoma) and 254 (Waco, Texas), measured between the centres of each area.
Who called me from a 940 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 940 a scam?
940 is a real Texas area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.