The 817 area code covers Arlington, Fort Worth and 19 more places in Texas.
Area code 817 is in Texas, on Central Time. In the 817 area, phone numbers are given out most in Tarrant County, then Johnson and Parker counties. It has been in service since 1953. 682 covers the same area, so two neighbours can have different area codes.
- Where
- 6 counties in Texas, mostly Tarrant County, Johnson County and Parker County
- Time zone
- Central Time
- In service since
- 1953
- Shares its area with
- 682 (since 2000)
- Prefixes in use
- 778
- How to dial
- Local calls need all 10 digits: 817-555-0142.
Find out who called you from an 817 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 (817) number is on today, use our free carrier lookup.
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Arlington holds 29% of the phone prefixes in area code 817.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 778 prefixes in use shows where 817 numbers are actually given out.
- Arlington228 prefixes, 29%
- Fort Worth192 prefixes, 25%
- Euless47 prefixes, 6%
- Grapevine36 prefixes, 5%
- North Richland Hills33 prefixes, 4%
- Roanoke22 prefixes, 3%
- Weatherford21 prefixes, 3%
- Cleburne18 prefixes, 2%
Also served: Kennedale, Keller, Granbury and Mansfield and 9 smaller places.
Southwestern Bell (AT&T) holds the most phone number prefixes in area code 817: 301 of 778.
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 778 prefixes in use in 817 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 | 301 | 39% |
| AT&T MobilityMobile network | 88 | 11% |
| Level 3 (Lumen)Lumen's business and wholesale network | 61 | 8% |
| T-MobileMobile network | 54 | 7% |
| FrontierLandline company | 26 | 3% |
| Grande Communications Networks | 25 | 3% |
| 24 other carriers | 223 | 29% |
60% 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.
817 has been split 2 times and overlaid once since 1953.
1953
817 goes into service.
1997
On May 25, 1997, 254 and 940 split off and take part of the 817 area.
2000
On October 7, 2000, 682 is added on top of 817, so new numbers here can get either code.
An 817 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 817 are 214, 254 and 940.
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 817.
Where is area code 817?
817 covers Arlington, Fort Worth, Euless and Grapevine and 17 more places in Texas. In the 817 area, phone numbers are given out most in Tarrant County, then Johnson and Parker counties.
What state is area code 817 in?
Texas. 817 is a Texas area code on Central Time.
What cities use area code 817?
The places holding the most 817 prefixes are Arlington, Fort Worth, Euless, Grapevine, North Richland Hills, Roanoke, Weatherford and Cleburne, out of 21 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 817?
No single phone company owns 817. NANPA's records show Southwestern Bell (AT&T) holds the most 817 prefixes, 301 of 778, followed by AT&T Mobility and Level 3 (Lumen). Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 817 in?
817 is on Central Time.
When did area code 817 start?
817 went into service in 1953.
Is 817 the same area as 682?
Yes. 682 (since 2000) covers the same ground as 817. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial an 817 number?
Local calls need all 10 digits: 817-555-0142.
Is 817 a toll-free number?
No. 817 is a regular area code for Arlington and Fort Worth 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 817?
The closest are 214/972/469/945 (Dallas, Texas), 254 (Waco, Texas), 940 (Wichita Falls, Texas) and 903/430 (Tyler, Texas), measured between the centres of each area.
Who called me from an 817 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 817 a scam?
817 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.