Area Code 631

Brentwood, New York · EST/EDT (UTC-5) · United States

Area Code
631
City
Brentwood, NY
Time Zone
EST/EDT
UTC Offset
UTC-5 / UTC-4 DST
DST
Observed
Introduced
1999

Where Is Area Code 631?

Suffolk County, Long Island — Brentwood, Smithtown, Huntington

Eastern Long Island including the Hamptons and Montauk.

Major Cities & Neighborhoods
BrentwoodSmithtownHuntingtonIslipBabylon

Time Zone for Area Code 631

Standard Time
EST (UTC-5)
Daylight Time
EDT (UTC-4)
DST 2026 Start
March 8, 2026
DST 2026 End
November 1, 2026
Country
United States
IANA Zone
America/New_York

Frequently Asked Questions

Where is area code 631?

Area code 631 is located in Brentwood, New York (United States). It covers Suffolk County, Long Island — Brentwood, Smithtown, Huntington.

What time zone is area code 631 in?

Area code 631 (Brentwood, New York) is in the EST/EDT time zone. Standard time is UTC-5 and UTC-4 during Daylight Saving Time.

Is area code 631 a scam?

Area code 631 is a legitimate NANPA-assigned code serving Brentwood, New York. However, scammers can spoof any area code. If you receive an unexpected call from (631), verify the caller before sharing personal information.

What time is it in area code 631 right now?

Area code 631 follows EST/EDT (UTC-5). See the live clock at whattime.city/new-york/ for the exact current time in Brentwood.

When was area code 631 introduced?

Area code 631 was introduced in 1999. Eastern Long Island including the Hamptons and Montauk.