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Area codes 631 and 934 are the telephone
Area codes 631 and 934 are the 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 an integrated 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, World Numbering Zone ...
(NANP) for Suffolk County, New York
New York most commonly refers to:
* New York (state), a state in the northeastern United States
* New York City, the most populous city in the United States, located in the state of New York
New York may also refer to:
Places United Kingdom
* ...
, on Long Island
Long Island is a densely populated continental island in southeastern New York (state), New York state, extending into the Atlantic Ocean. It constitutes a significant share of the New York metropolitan area in both population and land are ...
. Area code 631 was created in 1999 in a split
Split(s) or The Split may refer to:
Places
* Split, Croatia, the largest coastal city in Croatia
* Split Island, Canada, an island in the Hudson Bay
* Split Island, Falkland Islands
* Split Island, Fiji, better known as Hạfliua
Arts, enter ...
of 516 and 934 was added as an overlay in 2016. Communities in the numbering plan area include Babylon
Babylon ( ) was an ancient city located on the lower Euphrates river in southern Mesopotamia, within modern-day Hillah, Iraq, about south of modern-day Baghdad. Babylon functioned as the main cultural and political centre of the Akkadian-s ...
, Huntington, Islip
Islip may refer to:
Places England
* Islip, Northamptonshire
*Islip, Oxfordshire
* Islip Manor Meadows
United States
*Islip, New York, a town in Suffolk County
** Islip (hamlet), New York, located in the above town
**Central Islip, New York ...
, Smithtown, Brookhaven, Riverhead, Southampton
Southampton is a port City status in the United Kingdom, city and unitary authority in Hampshire, England. It is located approximately southwest of London, west of Portsmouth, and southeast of Salisbury. Southampton had a population of 253, ...
, Southold, Shelter Island, and East Hampton.
History
1947–1951: 914
With the announcement of a new nationwidetelephone numbering plan
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, reach ...
by the American Telephone and Telegraph Company
AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to busi ...
(AT&T) in October 1947, Suffolk County, Nassau County, the lower Hudson Valley, and some areas adjacent were assigned area code 914
Area code 914 is the telephone area code in the North American Numbering Plan (NANP) for Westchester County, New York.
Area code 914 was one of the first area codes announced when the North American Numbering Plan was created in October 1947, wh ...
.
1951–1999: 516
During 1951, area code 516 was assigned to Suffolk and Nassau.1999–2016: 631
On November 1, 1999, area code 631 was created solely for Suffolk County to satisfy the increased need for telephone numbers mainly due to cellular services, while Nassau County retained area code 516.Permissive dialing
In North America, permissive dialing is the ability to make phone calls in an area subject to a newly introduced area code by using both the new and preexisting dialing methods.
When an area is given a new area code under a split plan, the area's ...
for numbers terminating in the 631 area across Long Island continued until April 1, 2000, during which both area code may be used to dial destinations in the 631 area. New central office codes in the new NPA could be activated as early as May 8, 2000.
2016–present: 631/934 overlay
On July 16, 2016, area code 934 was assigned to overlay 631, which was nearing depletion of central office codes. This was the first overlay in an area in the state of New York outside New York City, and requiredten-digit dialing
Ten-digit dialing is a telephone dialing procedure in the countries and territories of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when Dialling (telephony), dialing to initiate a t ...
for both area codes, effective June 18, 2016.
See also
*List of New York area codes
__NOTOC__
The North American Numbering Plan Administration has divided the state of New York (state), New York into thirteen distinct geographic numbering plan areas (NPAs) with a total of twenty-two area codes.
New York City
References
...
* List of North American Numbering Plan area codes
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (''NPA codes'', or ''area code
A telephone numbering plan ...
References
External links
631 631 {{areacode-stub