WHAT YOU NEED TO KNOW
Area code 813 serves the Tampa Bay metro area in Florida, covering Tampa, Brandon, Plant City, and Temple Terrace among dozens of communities. Established in 1953 as one of Florida's original area codes, it covers Hillsborough County and surrounding areas, serving approximately 1.6 million residents and anchoring one of the Southeast's largest metro markets.
- Population: ~1.6 million residents in Hillsborough County alone; broader Tampa Bay metro exceeds 3.1 million
- Overlay: None as of 2024
- Dialing: 10-digit dialing required for all local calls
- Source Type: Local geographic code
Geographic Coverage
Area code 813 covers Hillsborough County in its entirety, which includes the city of Tampa and a broad ring of unincorporated communities and suburbs. Key communities include Brandon, Riverview, Valrico, Seffner, Gibsonton, Apollo Beach, Ruskin, Sun City Center, Wimauma, Lithia, Thonotosassa, Mango, and Plant City. The code does not extend into Pinellas County (covered by 727) or Pasco County (covered by 727 and 352). It is strictly the primary code for Hillsborough County.
Population and Business Context
Hillsborough County, served by 813, is one of the fastest-growing counties in the United States. Tampa is the county seat and home to major industries including finance, healthcare, technology, shipping, and defense contracting. The Port of Tampa Bay is the largest port in Florida by tonnage. The area also hosts a large tourism and hospitality sector tied to professional sports franchises and convention activity. Small and mid-sized businesses make up the bulk of the local commercial landscape.
Area Code History
Area code 813 was assigned in 1953 when the North American Numbering Plan reorganized Florida's telephone territory. At that time, the code covered a much larger portion of Florida's west coast and central interior. Over subsequent decades, population growth prompted splits that carved out codes such as 941 (1996) for Sarasota and southwest Florida, and 727 (1998) for Pinellas County. These splits reduced 813 to its current Hillsborough County footprint. No overlay has been added as of 2024.
How to Dial
All calls within area code 813 require 10-digit dialing, meaning you must dial the area code plus the 7-digit local number even when calling within Hillsborough County. Long-distance calls to numbers outside the 813 area require dialing 1 followed by the 10-digit number. Because no overlay code exists for 813, every local number carries the 813 prefix exclusively. Mobile and VoIP callers in the region follow the same 10-digit dialing standard.
Need a 813 Number for Your Tampa Bay Business?
Businesses operating in the Tampa Bay metro can provision a local 813 tracking number through Convirza. Whether you run a single location in Tampa or manage multiple service areas across Hillsborough County, a local 813 number signals presence to customers and feeds real call data back to your marketing stack. Convirza provisions trackable local numbers in any North American area code, typically within minutes. Every call to your 813 number is recorded, scored for conversation quality, and attributed to the exact source that drove it using dynamic number insertion (DNI). Calls can be routed to any team member, location, or queue you define. You get full visibility into which campaigns, channels, and keywords are generating phone leads in the Tampa Bay market.
750+ customers · 25 years of call data