512 Area Code: Austin, Texas

Austin is the primary city of the 512 area code, the long-running designation for the city itself and the surrounding central Texas region. Austin sits along the Colorado River in central Texas (the Texas Colorado, distinct from the larger river of the same name), organized around the Texas State Capitol, the University of Texas at Austin, and a substantial concentration of technology employment that has reshaped the city's working profile through recent decades. The 512 footprint extends through Round Rock, Cedar Park, Pflugerville, and the surrounding cluster of central Texas communities that have grown alongside the city's expansion.

Records linked to 512 numbers in the directory often include other Texas cities — Abilene, Beaumont, College Station, and Conroe among them. None of those are inside the 512 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Texas and addresses linked across multiple cities. The directory currently documents 676 distinct prefixes within 512 in detail, a working subset of the prefix population the code carries.

Austin's median household income runs well above the US figure, supported in part by the wage premium tied to the surrounding technology, semiconductor, and life-sciences employment. Home values come in well above the national median, in line with broader Austin-metro pricing pressure that has reshaped the region's housing market over the past decade. The city's median age sits a few years under the US reading, and population places Austin among the larger cities in the country.