624 area code
Buffalo area, Eastern Time.Area code 624 covers Buffalo, Tonawanda, Jamestown and 76 more places in New York, on Eastern Time. 716 covers the same area.
Right now in Buffalo
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 624 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 624 covers 79, but it's new and has barely been issued yet, so these are ranked by the numbers its overlay already holds. Its biggest metro area is Buffalo-Cheektowaga, NY.
Buffalo, Tonawanda, Jamestown, Williamsville, Niagara Falls, Lancaster, Lockport, West Seneca, Olean, Hamburg, Dunkirk, Fredonia + 67 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 624 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 624 number to them, since you can't tell a work line from a personal cell.
What applies to 624Every 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
624 and 716
624 went into service on November 16, 2023. 624 and 716 cover the same area, so new numbers can get either code and neighbors can have different area codes. 624 holds 0% of the area's exchanges; 716 holds the most. Local calls take all 10 digits.
- 1947716 overlay
- 2023624 starts
Source: NANPA area code database
Calling a list of 624 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.
624 area code FAQ
What area code is 624?
624 is a New York area code for Buffalo, Tonawanda, Jamestown, Williamsville and 75 more places.
What time zone is the 624 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 716 the same as 624?
Same area, different code. 624 and 716 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 624 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 624 area code start?
On November 16, 2023.
Calling 624 numbers? Reach more of them.
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