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, r ...

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 calling ...

(NANP) for Suffolk County,

New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * '' ...

Long Island Long Island is a densely populated island in the southeastern region of the U.S. state of New York, part of the New York metropolitan area. With over 8 million people, Long Island is the most populous island in the United States and the 18 ...

. 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, entertai ...

from 516; and 934 was added as an

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 ...

in 2016. Communities within the area include

Babylon ''Bābili(m)'' * sux, 𒆍𒀭𒊏𒆠 * arc, 𐡁𐡁𐡋 ''Bāḇel'' * syc, ܒܒܠ ''Bāḇel'' * grc-gre, Βαβυλών ''Babylṓn'' * he, בָּבֶל ''Bāvel'' * peo, 𐎲𐎠𐎲𐎡𐎽𐎢 ''Bābiru'' * elx, 𒀸𒁀𒉿𒇷 ''Babi ...

, Huntington, Islip, Smithtown, Brookhaven, Riverhead,

Southampton Southampton () is a port city in the ceremonial county of Hampshire in southern England. It is located approximately south-west of London and west of Portsmouth. The city forms part of the South Hampshire built-up area, which also covers Po ...

, Southold, Shelter Island, and East Hampton.

History of Suffolk County area codes

1947–1951: 914

With the announcement of a new nationwide telephone numbering plan by the

American Telephone and Telegraph Company AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile te ...

(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, w ...

1951–1999: 516

During 1951,

area code 516 Area code 516 is a telephone area code of the North American Numbering Plan (NANP) in the U.S. state of New York. The numbering plan area (NPA) comprises the Nassau County portion of Long Island. History When the North American Numbering Plan w ...

was assigned to Suffolk and Nassau, which were separated thereby from area code 914.

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

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 in 516 across Long Island continued until the spring of 2000.

2016–present: 934 overlay

On July 16, 2016, area code 934 was created to overlay 631, which was nearing depletion. This was the first overlay area code for an area in the state of New York outside New York City and required 10-digit dialing for both area codes, effective June 18, 2016.Kitchen, Patricia
"Area code countdown: Suffolk 10-digit dialing begins in June"
''

Newsday ''Newsday'' is an American daily newspaper that primarily serves Nassau and Suffolk counties on Long Island, although it is also sold throughout the New York metropolitan area. The slogan of the newspaper is "Newsday, Your Eye on LI", and fo ...

''. May 14, 2016.

References

External links

631 __NOTOC__ Year 631 ( DCXXXI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. The denomination 631 for this year has been used since the early medieval period, when the Anno Domini calendar era ...

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