817 Area Code: Fort Worth, Texas

The 817 area code covers Fort Worth and the surrounding Tarrant County region. Fort Worth sits along the Trinity River in north-central Texas, organized around a downtown core, the Fort Worth Stockyards historic district (a preserved cluster of cattle-trade buildings dating from the city's late-nineteenth-century beginnings), and a substantial cluster of aerospace and defense employment built around Lockheed Martin's main fighter-aircraft facility. The 817 footprint extends through Arlington, Hurst, Euless, Bedford, and the surrounding cluster of central Tarrant County communities.

In records the directory has compiled for 817 numbers, other Texas cities — Abilene, Austin, Beaumont, and College Station — recur frequently. None of those are inside the 817 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Texas and addresses linked across multiple cities. The directory currently documents 625 distinct prefixes within 817 in detail, a working subset of the prefix population the code carries.

Fort Worth's home values come in below the US median, with median household income running close to the national figure. The city's median age sits a few years under the US reading, and population places Fort Worth among the larger cities in the country — the western anchor of the broader Dallas–Fort Worth metropolitan area, with a distinct civic identity that draws on the city's long-running cattle-trade and ranching heritage alongside the more recent aerospace base.