Introduction
Say "817" to anyone in North Texas and they will picture the same place: Fort Worth, Cowtown, the western anchor of the Dallas-Fort Worth Metroplex. For more than seventy years this code has been the dial-tone identity of a region that grew from a cattle-drive stopover into one of the largest metropolitan areas in the country. This guide lays out exactly where 817 reaches today, how it was created and later reshaped, the overlay that brought ten-digit dialing, and how any business can claim a local Fort Worth presence with a number of its own.
Key Takeaways
- The 817 prefix is the signature area code of Fort Worth and the western half of the Dallas-Fort Worth Metroplex, anchored by Tarrant County and reaching into Hood, Johnson, Parker and Wise counties.
- It was created in 1953, carved from the eastern edge of the sprawling 915 code — making it one of the older numbering plans in Texas, though not one of the 1947 originals.
- On July 25, 1997, a three-way split shrank 817 dramatically, spinning off 940 to the north and 254 to the south so the code could concentrate on the booming Fort Worth side of the metro.
- A second code, 682, was overlaid across the same territory on October 7, 2000, which made ten-digit dialing mandatory for every local call in the region.
- The area sits in the Central Time Zone, and a local 817 number still reads as authentically Fort Worth — a genuine advantage for any business courting customers in one of America's fastest-growing big cities.
What Is the 817 Area Code?
The 817 prefix is the principal area code for Fort Worth and the western portion of the Dallas-Fort Worth Metroplex in north-central Texas. It is a geographic code with deep roots — unlike an overlay that simply layers on top of an existing region, 817 has its own defined territory that it has held, in one form or another, since 1953. On the eastern side of the same metroplex sits Dallas and its 469 area code, so the two halves of DFW have long worn distinct numbering identities even as the suburbs between them have grown together.

Because it covers Fort Worth proper plus the dense ring of suburbs across Tarrant County, an 817 number reads as unmistakably local. To a customer in Arlington, Southlake or Mansfield, it looks like a neighbor on the caller ID rather than a stranger from out of state — a small but real credibility signal for any business working the region.
Geographic Coverage and the Cities It Serves
The 817 code is centered on Tarrant County and spreads into the surrounding counties of Hood, Johnson, Parker and Wise, with slivers reaching into Dallas and Denton counties. It blankets the western side of the metroplex, where Fort Worth's downtown gives way to fast-growing bedroom communities and exurban towns. The major communities include:
- Fort Worth — the heart of the code and the fifth-largest city in Texas, home to the Stockyards, Sundance Square and a booming downtown
- Arlington, Mansfield and Grand Prairie — the populous midpoint between Fort Worth and Dallas, anchored by AT&T Stadium and Globe Life Field
- The Mid-Cities — Hurst, Euless, Bedford, Grapevine, Southlake, Colleyville and Keller, the affluent suburbs ringing DFW Airport
- Cleburne, Weatherford, Granbury, Burleson and Azle — the outer towns spreading into Johnson, Parker and Hood counties
It is a large and still-expanding territory — historic stockyards and a revitalized urban core, master-planned suburbs filling in the Mid-Cities, and ranch land giving way to subdivisions out west. That relentless growth is exactly why a single area code could not hold the whole region forever.
The 1997 Split and the 682 Overlay
When 817 was created in 1953, it was carved from the eastern edge of the enormous 915 code and covered a huge swath of central and north Texas. For decades that was plenty. But as the Metroplex exploded in the second half of the century, the code ran short of numbers, and on July 25, 1997 regulators performed a three-way split. The northern reaches — Wichita Falls, Denton and the country in between — were assigned the new 940 area code, while the southern portion around Waco, Temple and Killeen became 254. What remained was a tighter 817 focused on Fort Worth and its immediate suburbs, the western counterpart to Dallas's 214 area code across the metroplex.

Even that relief did not last. Pagers, fax lines and the first wave of cellphones drained the smaller 817 pool within a few years, so on October 7, 2000 a new code, 682, was overlaid across the exact same territory. Rather than split the region again and force anyone to change their number, the overlay simply added a second code to the same map. The trade-off was ten-digit dialing — with two codes sharing one footprint, every local call now had to include the area code.
Time Zone and How to Dial
The entire 817 region observes Central Time — UTC-6 in winter (CST) and UTC-5 during daylight saving (CDT), which runs from March to November. Because Fort Worth has shared its territory with the 682 overlay since 2000, ten-digit dialing is mandatory for every local call:
- Local and regional calls: dial all ten digits — 817-555-1234.
- Long-distance from elsewhere in the U.S.: add a leading 1 — 1-817-555-1234.
- International: dial the exit code, then +1, then the number — +1 (817) 555-1234.
Benefits of an 817 Number for Business
A local number is one of the simplest trust signals a business can own. When a Fort Worth-area customer sees a familiar 817 number, the call reads as a neighbor rather than an out-of-state cold call.

- Local credibility: people are far more likely to answer a call from a familiar Fort Worth code.
- Big-metro reach: an 817 number signals a presence in the booming Dallas-Fort Worth market, the country's fourth-largest metro.
- Work from anywhere: cloud calling lets a company hold a local 817 line while operating from anywhere.
- Better customer connections: a local number lowers the friction of every inbound inquiry.
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How to Get an 817 Phone Number
Securing an 817 number is simple, whether for a single line or a full team.

- Choose a provider: options range from traditional carriers to cloud platforms like Acepeak that assign numbers online.
- Pick or port a number: browse the available 817 inventory, or transfer an existing local line.
- Verify details: provide basic business and billing information.
- Activate: cloud providers often go live in minutes rather than days.
Scam Awareness and Staying Safe
Because a local code looks trustworthy, scammers sometimes spoof it to appear nearby. An 817 number on the caller ID still deserves the same scrutiny as any other.
- Never share sensitive details — bank information or a Social Security number — with an unexpected caller.
- Verify urgent requests by hanging up and calling back on an official, published number.
- Use call-blocking and spam-filtering tools to screen unknown numbers.
- Report suspicious calls to the provider or the relevant authorities so others are protected.
The Future of the 817 Prefix
Fort Worth is one of the fastest-growing large cities in the United States — its population has climbed past one million — so demand for numbers in the region is only rising. But future relief will almost certainly come through additional overlays rather than another split, which leaves every existing 817 number untouched. Residents and businesses are already long accustomed to ten-digit dialing, so a new code would simply join the same pool. For anyone tired of unwanted calls in the meantime, the National Do Not Call Registry helps cut telemarketing to any 817 line. The practical takeaway is unchanged: an 817 number remains a recognizable, trusted local identity across Fort Worth and the western Metroplex.
Conclusion
Fort Worth's 817 prefix is more than a routing code; it is a marker of one of America's great boomtowns. Born in 1953, trimmed to its current shape in the 1997 split, and joined by the 682 overlay in 2000, it has evolved right alongside the city it serves. For a business, an 817 number remains one of the cheapest, most credible ways to signal local roots — and with cloud calling, that Fort Worth presence is available to anyone, anywhere.
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