Area Code Atlas

NPA 305 designated for all of Florida

Area code 305 was assigned in 1947 as the original area code for the entire state of Florida under the North American Numbering Plan, as part of the first nationwide telephone numbering plan announced by AT&T.

NPA 813 split from 305 for western Florida

Area code 813 was created in 1953 from a split of the original 305 area code, serving the western part of the Florida peninsula, including the Tampa Bay area and surrounding regions. This division reduced the coverage of 305 to the southeastern part of the state.

Area code 904 split from 305

Area code 904 was created in 1965 by splitting the northern portion of Florida from area code 305. This change assigned 904 to all of north Florida, including Jacksonville, while 305 continued to serve the southeast. The split was made to accommodate the growing demand for telephone numbers in the region.

Permissive dialing begins for NPA 904 split from 305

A permissive dialing period for area code 904 began on July 6, 1965, as North Florida was split from 305 to accommodate population growth. During this period, both the old and new codes could be used.

NPA 904 split from 305

Area code 904 was assigned to North Florida from the Panhandle to Jacksonville with a permissive dialing period beginning July 6, 1965, splitting from 305 due to population growth.

NANP - SPLIT OF THE 305 NUMBERING PLAN AREA

NPA 407 split from 305

Area code 407 was assigned in 1988 to the east coast of Florida, including the Orlando metropolitan area, from Palm Beach County north through Brevard County, reducing the territory of 305.

NPA 407 split from 305 for east coast and Orlando

On April 16, 1988, area code 407 was split from 305 to serve the east coast of Florida from Palm Beach County north through Brevard County and the Orlando metropolitan area. The split was implemented due to substantial telephone number growth in the region.

Area code 941 introduced

Area code 941 was introduced on May 28, 1995, serving the southwest coastal portion of Florida including Manatee, Sarasota, and Charlotte counties. It was created from parts of area codes 305 and 813.

NANP-SPLIT OF 305 (FLORIDA) NUMBERING PLAN AREA (NPA)

NPA 954 split from 305

Area code 954 went into service on September 11, 1995, as a geographic split from area code 305. The new code covered Broward County, including Fort Lauderdale and surrounding cities, while 305 was retained for the Miami area.

NPA 786 overlay introduced for 305

On March 1, 1998, area code 786 was activated as a concentrated overlay for the 305 area code in Miami-Dade County, Florida. This overlay was implemented to address the rapid exhaustion of available numbers in the region. The overlay initially covered only Miami-Dade County.

Permissive dialing period begins for 305/786 overlay

A permissive dialing period for the new 786 overlay on 305 began on March 1, 1998, allowing calls to be completed using either 7 or 10 digits.

NANP-Concentrated Overlay of 305 Numbering Plan Areas (NPA) in Florida

Area code 786 activated in Miami-Dade County

Area code 786 was activated in Miami-Dade County on April 26, 1998, as a second area code overlaying 305 to address number exhaustion.

Announcement of area code 786 overlay for Miami-Dade County

Announcement on April 26, 1998, that area code 786 would be added as a second area code overlaying 305 in Miami-Dade County.

Mandatory 10-digit dialing for 305 and 786

On July 1, 1998, mandatory 10-digit dialing was implemented for all local calls within and between the 305 and 786 area codes in Miami-Dade County, Florida.

Permissive 10-digit dialing begins for 305/786 overlay

Permissive 10-digit dialing started on July 1, 1998, for the 305/786 overlay area to prepare customers for mandatory 10-digit dialing.

10-digit dialing put on hold in the Florida Keys

Plans for mandatory 10-digit dialing in the Florida Keys were put on hold as of September 30, 2000, delaying the overlay implementation.

Permissive Seven or Ten Digit Dialing 305 NPA (Keys Area)

Monroe County added to 786 overlay

Monroe County was added to the 786 overlay on September 1, 2001, expanding the overlay beyond Miami-Dade County.

NPA 786 overlay extended to Monroe County

Area code 786 was extended to cover Monroe County on September 1, 2001, expanding the overlay beyond Miami-Dade County.

Expansion of the Concentrated NPA 786 Overlay with NPA 305 (Florida)

Third area code 645 approved for Miami region

The Florida Public Service Commission approved a third area code, 645, for the Miami region on February 25, 2022, to address the anticipated exhaustion of central office codes in 305 and 786. This approval included Miami-Dade and Monroe counties, with the overlay intended to provide additional numbering resources in the region.

NPA 645 overlay on 305/786 announced

NPA 645 to Overlay NPA 305/786 (Florida)

NPA 645 activated as overlay for Miami region

Area code 645 was activated on August 4, 2023, as an overlay for the Miami region, joining 305 and 786 to provide additional numbering resources for Miami-Dade County and part of Monroe County.

NPA 645 activated in Miami region

Area code 645 was activated on August 4, 2023, as the third overlay for the Miami region, joining 305 and 786 to provide additional numbering resources and address number exhaustion in the area.