🇺🇸 631 area code
Area code 631 covers Deer Park, Bay Shore, Lindenhurst and Amityville and the surrounding area in New York. It shares that territory with 934, so the same neighbourhood can have numbers in any of them. Enter a 631 number below for a free check before you call back.
- Location: Deer Park, New York
- Time zone: Eastern (UTC−5)
- In service since November 1, 1999
Consultar um número
Validade, operadora, tipo de linha e região na primeira passagem.
Area code 631 at a glance
- Area code
- 631
- Location
- New York, United States
- Main cities
- Deer Park, Bay Shore, Lindenhurst, Amityville, Farmingdale, Commack
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- November 1, 1999
- Created from
- 516
- Overlay codes
- 934
- Codes split from it
- 934
- Local calls
- Dial 10 digits
- Number format
- (631) 555-0123
- From abroad
- +1 631 555 0123
Cities in area code 631
- Deer Park
- Bay Shore
- Lindenhurst
- Amityville
- Farmingdale
- Commack
- East Hampton
- Riverhead
- Southampton
- Patchogue
Is a 631 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 631 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 631 number to people in New York because a local-looking call is more likely to be answered. If a 631 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 631
631 entered service on November 1, 1999, when it was split from 516.
It is part of the 631/934 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 934 was carved out of or added to 631.
Perguntas frequentes
Area code 631 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 631?
Area code 631 is in New York, United States. It covers Deer Park, Bay Shore, Lindenhurst, Amityville, Farmingdale and Commack.
What time zone is area code 631?
631 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 631?
934 serves the same area as 631. Numbers in all of them are local to one another.
When did area code 631 start?
631 entered service on November 1, 1999, created from 516.
How do I find out who called me from 631?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 631?
If you live in or near New York, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 631 callers who will not leave a message are best looked up before you call back.
Got a call from 631?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.