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The 2010 edition of the Florida Building Code introduced significant changes to wind load design, in particular the presentation of the wind speed maps. [4] The Miami-Dade and Broward County norms, are both included in the High-Velocity Hurricane Zones (HVHZ) and contain more stringent requirements. [4]
Area codes 813 and 656 are area codes in the North American Numbering Plan for the U.S. state of Florida in the city of Tampa, Florida, and its surrounding areas, such as Zephyrhills and Oldsmar. In 2022, due to exhaustion of central office prefixes, area code 656 was added to the service area forming an overlay complex .
In 1953, area code 813 was introduced for the western coast of Florida, and 904 was assigned for northern Florida in 1965. In 1988, area code 407 was introduced for the Orlando area. [1] In 1995, area code 954 was introduced for Broward County. In 1996, area code 239 was introduced for southwest Florida and area code 352 for the areas around ...
Florida (all of Hillsborough County, including Tampa and its suburbs, MacDill Air Force Base, and Plant City; and the inland areas of Pasco County and Oldsmar in Pinellas County [12]) 1953 split of 305 to give Florida more than one area code
The zones are defined by steps of 5 degrees Celsius, from −15–−10 °C for zone 1 to 15–20 °C for zone 7. [36] They are numerically about 6 lower than the USDA system. For example, Australian zone 3 is roughly equivalent to USDA zone 9.
[8] [9] Monroe County was added to area code 786 on September 1, 2001. [10] [11] The Florida Public Service Commission approved a third area code for the Miami region on February 25, 2022. Area code 645 was activated on August 4, 2023, before the anticipated exhaust of central office codes in 305 and 786, which was likely to occur in 2023. [12]
Area code 407 was created in 1988 in a split of area code 305, [1] Florida's original area code of 1947. When assigned, 407 included not only most of Central Florida, but also the Palm Beaches and Treasure Coast. In 1996, Palm Beach, Martin, Indian River, and St. Lucie counties were split from the number plan area and received area code 561.
Area code 813 was unmodified for 43 years until 1996, when the 13 counties outside of the immediate Tampa Bay area (all but Hillsborough, Pinellas, and Pasco counties) were assigned area code 941. In 1999, numbering plan area 863 took its current form as the coastal counties kept 941, while the rest received area code 863.