An 813 number is a telephone area code assigned to the Tampa Bay region of Florida. It serves Hillsborough County and several surrounding areas, functioning as a geographic identifier for landlines and mobile phones in that specific part of the state.
Geographic coverage
The 813 area code primarily covers Hillsborough County. Major cities within this zone include Tampa, Brandon, Plant City, Temple Terrace, and Riverview. It also includes parts of Pasco County and Manatee County. If a phone number starts with 813, the carrier has assigned it to a location within this defined geographic footprint. This distinguishes it from toll-free prefixes, which are not tied to a physical location.
History and the 656 overlay
Area code 813 was one of the original codes introduced in 1947 under the North American Numbering Plan. Initially, it covered a much larger portion of western Florida, stretching from the Panhandle down to the southwest coast. As the population grew, the region was split multiple times. Codes 941, 727, and 239 were carved out over the decades to serve different counties. By the early 2000s, the remaining 813 numbers were running low. In 2015, the 656 overlay was implemented to provide more number capacity. Today, new phone numbers in the Tampa area can be assigned either an 813 or a 656 prefix. Both codes serve the exact same geographic area and function identically in terms of call routing and cost.
Differences between 813, 656, and 727
While 813 and 656 are interchangeable in terms of service, they differ in perception. 813 is the older code and is often associated with established local businesses. 656 is newer and sometimes viewed as less familiar by older residents. Code 727 serves Pinellas County, which includes St. Petersburg and Clearwater. Although geographically adjacent, 727 is a distinct area code. Calls between 813 and 727 numbers are treated as local within the Tampa Bay region, but they are technically different numbering plan areas. Businesses operating on both sides of the bay sometimes maintain numbers in both codes to appear local to all customers.
Local identity and business use
For many residents and businesses, the area code carries social weight. An 813 number signals that a person or company is rooted in the Tampa area. Small businesses often retain their 813 numbers when switching carriers to maintain customer trust. In a landscape filled with spoofed calls and out-of-state VoIP numbers, a local area code can increase the likelihood that a caller will answer. However, mobile number portability allows people to keep their 813 number even if they move to another state, which can blur the geographic connection. Despite this, the prefix remains a strong marker of local identity in the Tampa Bay community.
Practical considerations
If you are moving to the Tampa area, you can request an 813 or 656 number from most carriers, though availability depends on current inventory. You can also port an existing 813 number from another carrier. Calls to 813 numbers are standard local or long-distance calls depending on your plan; they are not toll-free. There is no special fee to receive a call from an 813 number. For businesses, maintaining a local area code can be a marketing advantage, helping to distinguish them from spam or out-of-state callers.