934 area code
Riverhead area, Eastern Time.Area code 934 covers Riverhead, Amityville, Brentwood and 50 more places in New York, on Eastern Time. 631 covers the same area.
Right now in Riverhead
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 934 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 934 has 53. Each one's share is how many 934 numbers start there. Its biggest metro area is New York-Newark-Jersey City, NY-NJ.
- Riverhead12%
- Amityville9%
- Brentwood6%
- Babylon5%
- Patchogue4%
- Yaphank4%
- Huntington3%
- Central Islip3%
- Ronkonkoma3%
- Smithtown3%
- Bellport3%
- Deer Park2%
Also: Southampton, Selden, Lindenhurst, Port Jefferson, Stony Brook, Bay Shore, West Commack, Northport, Islip, Bayport, East Hampton, Atlantic + 29 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 934 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 934 number to them, since you can't tell a work line from a personal cell.
What applies to 934Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
934 and 631
934 went into service on July 16, 2016. 934 and 631 cover the same area, so new numbers can get either code and neighbors can have different area codes. 934 holds 14% of the area's exchanges; 631 holds the most. Local calls take all 10 digits.
- 1999631 overlay
- 2016934 starts
Source: NANPA area code database
Calling a list of 934 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
934 area code FAQ
What area code is 934?
934 is a New York area code for Riverhead, Amityville, Brentwood, Babylon and 49 more places.
What time zone is the 934 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 631 the same as 934?
Same area, different code. 934 and 631 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 934 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 934 area code start?
On July 16, 2016.
Calling 934 numbers? Reach more of them.
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