Area codes 561 and 728 are telephone

area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...

s in the

North American Numbering Plan The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international callin ...

(NANP) for Palm Beach County in the U.S. state of

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

. 561 was created on May 13, 1996, in a split of

area code 407 Area is the quantity that expresses the extent of a Region (mathematics), region on the plane (geometry), plane or on a curved surface (mathematics), surface. The area of a plane region or ''plane area'' refers to the area of a shape or planar ...

. The numbering plan area (NPA) comprises nearly every major city in the county, the largest of which being West Palm Beach,

Boca Raton Boca Raton ( ; es, Boca Ratón, link=no, ) is a city in Palm Beach County, Florida, United States. It was first incorporated on August 2, 1924, as "Bocaratone," and then incorporated as "Boca Raton" in 1925. The population was 97,422 in the ...

Wellington Wellington ( mi, Te Whanganui-a-Tara or ) is the capital city of New Zealand. It is located at the south-western tip of the North Island, between Cook Strait and the Remutaka Range. Wellington is the second-largest city in New Zealand by me ...

, Boynton Beach,

Jupiter Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but ...

Delray Beach Delray Beach is a city in Palm Beach County, Florida, United States. The population of Delray Beach as of April 1, 2020 was 66,846 according to the 2020 United States Census. Located 52 miles (83 kilometers) north of Miami, Delray Beach is in the ...

, and Belle Glade. On March 10, 2023, area code 728 was added to the same numbering plan area to form an all-services distributed

overlay Overlay may refer to: Computers *Overlay network, a computer network which is built on top of another network *Hardware overlay, one type of video overlay that uses memory dedicated to the application *Another term for exec, replacing one process ...

. Within only five years of creation, NPA 561 was experiencing rapid exhaustion of central office codes from growth of service demands in the Palm Beaches/ Treasure Coast region and the proliferation of cell phones. In mitigation, the northern part of 561, the Treasure Coast, was split off with area code 772 in 2002. This service configuration in the region was sufficient for twenty-one years until on January 4, 2022, the Florida Public Service Commission decided and approved an all-services overlay for the NPA, with an effective in-service date of March 10, 2023. A permissive dialing period was not necessary for this overlay, because area code 561 already had a ten-digit dialing requirement, because prior to October 2021, it had telephone numbers assigned for the central office code 988. In 2020, ''988'' was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code transitioned to ten-digit dialing by October 24, 2021.

References

External links

Florida's Area Code History
{{DEFAULTSORT:Area Code 561

561 __NOTOC__ Year 561 ( DLXI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 561 for this year has been used since the early medieval period, when the Anno Domini calendar era ...

1996 establishments in Florida Treasure Coast

See also

References

External links