Area Code 934 — New York (overlay with area code 631)
Covers Huntington, Babylon, Islip, Smithtown, and Brookhaven and surrounding areas in New York (NY).
Time zone: Eastern (ET) | Established: 2015
Where Is Area Code 934?
Area code 934 serves Suffolk County on eastern Long Island as an overlay sharing coverage with area code 631. Introduced in 2015 as an overlay to area code 631, it shares the same geographic footprint — new phone numbers in the region may be assigned either code. The area is home to approximately 1.5 million people and falls within the Eastern (ET) time zone.
Huntington is the largest city in the 934 area code and serves as the economic and cultural center of the region. Other notable communities include Babylon, Islip, and Smithtown, each contributing to the area’s mix of residential, commercial, and cultural activity. The region supports a diverse economy with opportunities in healthcare, education, retail, and various service industries.
The introduction of area code 934 as an overlay meant that residents and businesses in the region transitioned to mandatory 10-digit dialing for all local calls. Unlike an area code split — which reassigns existing numbers to a new code — an overlay keeps all existing 631 numbers intact and simply adds 934 as a second option for new assignments. New York currently uses 19 area codes to serve its residents.
Major Cities and Communities in the 934 Area Code
The following cities and communities are served by area code 934:
- Huntington
- Babylon
- Islip
- Smithtown
- Brookhaven
Area Code 934 Details
| State | New York (NY) |
| Time Zone | Eastern (ET) (UTC-5 / UTC-4 (DST)) |
| Year Established | 2015 |
| Overlay Code | Yes |
| Approximate Population Served | 1,500,000 |
| Region | Covers Suffolk County on eastern Long Island as an overlay sharing coverage with area code 631 |
Interesting Facts About Area Code 934
- Area code 934 was introduced in 2015 as an overlay for area code 631, meaning both codes serve the exact same geographic area in New York.
- Area code 934 serves approximately 1.5 million residents in New York, centered around the Huntington area.
- Because 934 is an overlay code, all calls in the region require 10-digit dialing — you must dial the area code even for local calls.
Related Area Codes
Other New York area codes: 212, 315, 332, 347, 516, 518, 585, 607, 631, 646, 680, 716, 718, 838, 845, 914, 917, 929
Connecticut: 203, 860
Massachusetts: 413
New Jersey: 201, 973
Pennsylvania: 570, 717
Vermont: 802
Frequently Asked Questions
What cities use area code 934?
Area code 934 serves Huntington, Babylon, Islip, Smithtown, and Brookhaven and surrounding communities in New York.
What time zone is area code 934?
Area code 934 is in the Eastern (ET) time zone (UTC-5 / UTC-4 (DST)).
Is 934 a toll-free number?
No, area code 934 is not a toll-free number. It is a geographic area code assigned to New York. Toll-free area codes include 800, 888, 877, 866, 855, 844, and 833.
When was area code 934 established?
Area code 934 was established in 2015.
Is area code 934 an overlay code?
Yes, area code 934 is an overlay code that shares geographic coverage with area code 631 in New York. Both codes serve the same area.
Other New York Area Codes
212 • 315 • 332 • 347 • 516 • 518 • 585 • 607 • 631 • 646 • 680 • 716 • 718 • 838 • 845 • 914 • 917 • 929
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