The 817 Phone Number Area refers to the telephone area code 817, which primarily serves Fort Worth and the western portion of the Dallas–Fort Worth metropolitan region in North Texas. Introduced in 1953, area code 817 covers a large, densely populated region centered on Fort Worth, Texas. In practical terms, if you receive a call or see a number beginning with (817), it likely originates from Fort Worth or nearby cities and counties in North Texas. This guide explains the geography, history, coverage and other key details of the 817 phone number area, including major cities, counties, overlays, and dialing rules.
- Primary City: Fort Worth, Texas (population ~1.0 million as of 2024).
- Service Area: Much of Tarrant County (100%), parts of Dallas County, and portions of Johnson, Parker, Ellis, Hood and Wise Counties.
- Major Cities: Fort Worth, Arlington, Grand Prairie, North Richland Hills, Mansfield, Euless, Irving (partial), Bedford, Keller, Hurst, Burleson, Grapevine, and others.
- Time Zone: Central Time Zone (UTC–6 standard, UTC–5 daylight saving).
- Created: 1953 (split from original area code 915).
- Overlay: 682 (added in 2000 to serve the same geographic area).
- Ten-Digit Dialing: Required for all calls within the 817/682 region due to the overlay.
Map highlighting the 817 phone number area in Texas (Fort Worth and surrounding counties). The shaded region shows where calls with area code 817 originate, centered on Fort Worth and parts of the Dallas–Fort Worth metroplex.
Table of Contents
Geographic Coverage of Area Code 817
Area code 817 covers north-central Texas, specifically the city of Fort Worth and much of the western half of the Dallas–Fort Worth Metroplex. The heart of the 817 region is Fort Worth (in Tarrant County), the fourth-largest city in Texas. Beyond Fort Worth, the 817 area extends through the majority of Tarrant County and spills into adjacent counties. The covering counties include Tarrant, Johnson, Parker, Hood, Wise and Ellis, as well as parts of Dallas County (West Dallas suburbs). Some parts of Denton County also fall at the edge of 817. In total, the 817/682 region spans over 8 counties and dozens of communities in North Texas.
The 817 area code includes many well-known suburbs and smaller cities around Fort Worth. Major cities in the 817 area are: – Fort Worth (Tarrant County) – the core city (~1,008,000 people as of 2024) and the cultural/economic center of the region. Nearly the entire city of Fort Worth uses 817 (and its overlay 682).
– Arlington (Tarrant County) – a large city (~400,000 people) immediately east of Fort Worth. Arlington is fully within area code 817, making its entire city population use 817/682.
– Grand Prairie (Dallas/Tarrant County) – part of this tri-county city lies in Dallas County, but the portions in Tarrant use 817. Grand Prairie (~175,000 people) is largely served by 817/682.
– North Richland Hills (Tarrant County) – a northern suburb of Fort Worth (~63,000 people) entirely in 817.
– Mansfield (Tarrant County) – a fast-growing suburb (~56,000) south of Arlington, entirely in 817.
– Euless, Bedford, Hurst (all in Tarrant County) – part of the “Mid-Cities” near DFW Airport; each city (50k‑55k people) is fully in 817.
– Irving (Dallas County) – only a small portion of Irving (notably the southwestern side) falls under 817; most of Irving is 214/469/972.
– Haltom City, Keller, Colleyville, Southlake (Tarrant County) – western/eastern suburbs of Fort Worth with populations 20k–39k, all in 817.
– Burleson (Johnson County) – southeast of Fort Worth (~36,000) entirely in 817.
– Weatherford (Parker County) – west of Fort Worth (~46,000) entirely in 817.
– Waxahachie (Ellis County) – part of eastern 817 (97% of city population).
– Granbury (Hood County) – southwest of Fort Worth (~26,000), largely 817 (about 98%).
And many more cities and towns. In summary, 817 serves dozens of Texas cities with a combined population of roughly 1.9–2.0 million residents. The region includes both urban cores (Fort Worth, Arlington) and smaller suburban/rural communities, all anchored by the Dallas–Fort Worth metro area’s western edge.
Nearby area codes bordering or overlaying 817 include: – 682 – the official overlay for all of 817 (added in 2000), covering exactly the same region.
– 214/469/972 – these serve Dallas and eastern/northern DFW suburbs. They abut 817 on the northeast side.
– 940 – serves the Dallas suburbs (Denton/Wichita Falls area); it took northern parts of old 817 in 1997.
– 254 – serves Killeen/Waco area; it took southern parts of old 817 in 1997.
History of the 817 Area Code
The story of area code 817 begins with the North American Numbering Plan (NANP), which was introduced in 1947 to standardize telephone dialing. Initially, all of North Texas (including Dallas and Fort Worth) was covered by two area codes: 214 in the east (Dallas) and 915 in the west (El Paso to Fort Worth region). As population and phone use grew, the boundaries shifted.
- 1953 – Creation: Area code 817 was created on January 1, 1953. It was split off from the eastern portion of area code 915. This new code (817) served the north-central Texas region, including Fort Worth and surrounding areas. At the time, it significantly expanded North Texas’s dialing capacity to meet rising demand.
- 1997 – Two Splits: By the mid-1990s, the Dallas–Fort Worth area was booming, and even 817 was running out of numbers. On July 25, 1997, area code 817 underwent a two-part split. The western/northern portion of 817 (covering Wichita Falls, Denton, and surrounding areas) became new area code 940. Simultaneously, the southern portion (including Waco, Temple, Killeen) became area code 254. After these splits, 817 shrank to essentially cover Fort Worth and its immediate suburbs in Tarrant and adjacent counties.
- 2000 – Overlay with 682: The growth in mobile phones, pagers, and fax lines (and later cellphones and internet lines) again strained the remaining 817 numbers. To provide more numbers without changing existing ones, authorities introduced an overlay. On October 7, 2000, area code 682 was overlaid on the same geographic region as 817. From that point forward, new phone numbers in the area might receive 682 instead of 817, but both codes serve the same region. (Notably, some communities on the eastern edge of Tarrant County were overlaid with Dallas’s codes 214/972 instead of 682, but central Fort Worth suburbs use 682.)
- 2020s – Stability: Thanks to the 682 overlay and number conservation measures, area code 817 has had enough numbering capacity for years. Recent analyses (as of 2023) indicate that no new third code will be needed in this region until around 2038. The Dallas–Fort Worth area’s planning authorities continuously monitor number use, but for now 817/682 suffice.
Throughout its history, the NANP Administrator (NANPA) has overseen these changes. The NANP (North American Numbering Plan) is the system that defines area codes for the U.S., Canada and other NANP countries. As a core region in North Texas, area code 817 has remained stable since 2000. Older residents may remember the brief moment when Fort Worth could be dialed with 7 digits, but after 2000 all calls within the region require 10-digit dialing (area code + number) due to the overlay.
Demographics and Usage
The 817 area code region serves a large population base in Texas. Fort Worth alone has about 1,000,000 residents (making it the 11th-largest U.S. city). Arlington (the other major city in 817) has roughly 400,000 people, and Grand Prairie adds another ~175,000. In total, well over a million people live in cities entirely within the 817 area, plus many hundreds of thousands more in suburbs and smaller towns. Even portions of Dallas County and Ellis County fall under 817, adding to its coverage. By conservative estimates, roughly 2 million Texans rely on phone numbers in area code 817/682.
This region’s economy spans industries from defense (e.g. Fort Worth is a hub for aerospace and military), to healthcare and education, to retail and manufacturing. Because 817 covers the Fort Worth Alliance Airport and numerous businesses (like airlines and shipping companies), the area sees heavy phone traffic. Local businesses often choose a Fort Worth (817/682) number to show they serve the community. In other words, using an 817 area code phone number signals “local North Texas presence” to customers.
According to telecom studies, customers are more likely to trust and answer calls from familiar local area codes. For example, a Fort Worth restaurant or real estate agent with an 817 number looks more connected than one with an unfamiliar out-of-state code.
Although the official 2020 census data for the entire 817 area code isn’t published by NANPA, we can gauge scale. Census and marketing data suggest the total population in 817 covers is on the order of 1.9–2.1 million. (One source estimates about 1.93 million based on older census data, excluding 682). This includes roughly equal numbers of men and women (about 960,000 males and 975,000 females).
The region is suburban-rich: many families, an average household income around $48,000, and median age in the low 30s. (Keep in mind those exact figures are from older estimates.) The main takeaway: this is a large and growing metro area, so demand for phone numbers remains high. However, because of overlays and efficient number management, 817 has kept up with demand without forcing another split.
Time Zone and Dialing
Phone numbers in area code 817 follow Central Time (CT). All of the 817 region, along with the rest of Texas (except far-western El Paso area), is in the Central Time Zone. Standard time is UTC−6 hours (Central Standard Time, CST) and UTC−5 hours during Daylight Saving Time (Central Daylight Time, CDT). Like most of the U.S., clocks in the 817 area “spring forward” one hour in March and “fall back” in November. Therefore, if you see a call from an 817 number, keep in mind it is aligned with Central Time.
Since the year 2000, all calls within area codes 817 and 682 require 10-digit dialing. That means you must dial the area code + the 7-digit phone number even if calling locally. This rule was implemented when the overlay was added. For example, even calling across town in Fort Worth, you would dial (817) 555-1234, not just 555-1234. Ten-digit dialing ensures proper routing in an overlay environment. Beyond that, 817 is a normal geographic area code – it is not toll-free (unlike codes such as 800 or 888). Calls placed to or from 817 numbers are billed at standard local or long-distance rates per your phone plan. In short:
- Local calls (same city/county): Generally billed as local, no extra area code required (besides dialing all 10 digits).
- Regional calls (within North Texas): Some plans treat all North Texas as a local calling area, but others may charge long-distance fees outside your local calling area. Check with your carrier.
- Long-distance calls: If you call outside your local area (e.g., from North Texas to another state or country), normal long-distance rules apply.
Importantly, area code 817 is not toll-free. It is purely geographic. So if you dial or receive a call from an 817 number, it behaves like any standard local number in Texas.
How the 817 phone number area Code is Used Today
Because the 817 area covers a large, urbanized part of Texas, its phone numbers are widespread. Several overlay prefixes (682) and central office codes are active. Local businesses, government offices, schools and individuals all use (817) and (682) numbers. Examples of prominent users in the 817 zone include: – Fort Worth Government and Schools: Many Fort Worth city departments, the Fort Worth ISD schools, and local universities use 817 numbers.
– Corporations: American Airlines (headquartered near Fort Worth Alliance Airport) and Bell Textron (Fort Worth aerospace) maintain 817 phone lines.
– Services: Major hospitals like Texas Health Harris Methodist Hospital Fort Worth and Baylor Scott & White All Saints (in Fort Worth) use 817 numbers to serve local patients.
– Retailers and Media: Local newspapers (Fort Worth Star-Telegram), TV/radio stations (KFWD, etc.), and stores advertise with 817 numbers to identify with the community.
If you live in the Dallas–Fort Worth area outside of downtown Dallas, you are very likely within an 817 number. Even many parts of suburban Dallas (like DeSoto, Duncanville and Cedar Hill) use 817 or 682. Inversely, Dallas proper (east of I-35W) typically uses 214/469/972. So for businesses and residents on the west side of DFW, calling or receiving calls from a Fort Worth number is extremely common.
Frequently Asked Questions
Q: What area is 817 phone number from?
A: The 817 area code comes from Texas, specifically the Fort Worth and western Dallas–Fort Worth metroplex region. If someone asks “What area is a 817 phone number from?”, the answer is north-central Texas (Fort Worth and nearby cities).
Q: Where is phone number area code 817 located?
A: It is located in north Texas. The 817/682 codes are centered on Fort Worth, TX and cover much of Tarrant County and surrounding areas. This includes the city of Fort Worth, Arlington, and other suburbs west of Dallas.
Q: What cities does the 817 area code cover?
A: Major cities in 817 include Fort Worth, Arlington, Grand Prairie, North Richland Hills, Mansfield, Euless, Bedford, Haltom City, Keller, Hurst, Burleson, Colleyville, Southlake, Weatherford, and portions of Irving and Waxahachie. In total, about 70+ cities and towns fall at least partially in 817/682.
Q: What counties does area code 817 cover?
A: Primarily Tarrant County (100% of it), plus parts of Dallas County, and portions of Johnson, Parker, Ellis, Hood, and Wise Counties. In other words, almost all of Fort Worth’s home county (Tarrant) is in 817.
Q: What is the overlay for area code 817?
A: Area code 682 is the overlay. It was added in 2000 and covers the exact same region as 817. New phone numbers can be assigned either 817 or 682. Both codes coexist, so for example Fort Worth numbers might start with either 817 or 682.
Q: Is the 817 area code toll-free or special?
A: No. 817 is a standard geographic area code, not a toll-free code. Calls to 817 numbers are billed at normal local or long-distance rates as appropriate. It is not an “800” or “888” code and does not have any special service associated with it.
Q: Do I need to dial 10 digits for an 817 number?
A: Yes. Because of the 682 overlay, all calls in the 817/682 area require 10-digit dialing (area code + 7-digit number) even for local calls. Be sure to include the 817 or 682 prefix when saving or calling local numbers.
Q: Will area code 817 change or get split?
A: Currently, there are no plans to split 817 or add another overlay. Forecasts show that the existing 817/682 supply of numbers should last well into the late 2030s. So your Fort Worth-area 817 number is unlikely to change any time soon.
Q: I got a call from a (817) number – where was it from?
A: Most likely it was from the Fort Worth area or its suburbs. For example, calls from 817 are often from Fort Worth businesses, local institutions (like schools or hospitals), or residents. Arlington (also 817) is another big source of calls. It generally means the caller is in the Tarrant County region.
Why the 817 phone number area Code Matters
Having a local area code like 817 is important for regional identity and trust. Within North Texas, people recognize 817 as belonging to “cowtown” Fort Worth and its vicinity. Businesses in Fort Worth often market themselves with an 817 number to appear local. Conversely, Dallas and other parts of DFW use 214/972/469, so you can usually tell by the area code roughly where someone is calling from.
For anyone researching a phone number with 817, remember: – 817 → Fort Worth/North Texas region.
– 682 → Same region (overlaid, so callers may have 682 now).
– Not Dallas proper (Dallas’s main codes are 214, 469, 972).
– Not distant Texas cities (San Antonio/Houston have their own codes).
If you need official confirmation or more details about numbering, the North American Numbering Plan Administrator (NANPA) maintains records of all area codes. NANPA’s website explains how area codes are assigned and managed. In Texas, the Public Utility Commission of Texas (PUC) also provides information on area codes and dialing rules for Texan consumers.
Conclusion
In summary, the 817 phone number area is firmly rooted in Fort Worth, Texas and the surrounding counties of the Dallas–Fort Worth metroplex. Created in 1953 and reinforced by an overlay (682) in 2000, it covers dozens of cities including Fort Worth, Arlington, Grand Prairie, and many western DFW suburbs. It is in the Central Time Zone, requires 10-digit dialing, and serves around two million people. If you see a caller ID with (817) or (682), it’s coming from North Texas (mostly Fort Worth). We hope this guide has made the coverage and details of area code 817 phone number area clear.
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Editorial Note: This article was created by the TechUpdateLab editorial team in 2026.
Author Credit: TechUpdateLab