878 area code
Pittsburgh area, Eastern Time.Area code 878 covers Pittsburgh, Beaver Falls, Washington and 162 more places in Pennsylvania, on Eastern Time. 412 covers the same area.
Right now in Pittsburgh
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Mon to Sat, 9 AM to 7 PM · Sun, no calls (Pennsylvania law)
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Where 878 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 878 has 165. Each one's share is how many 878 numbers start there. Its biggest metro area is Pittsburgh, PA.
- Pittsburgh8%
- Beaver Falls5%
- Washington4%
- Greensburg4%
- Rochester4%
- Criders Corners3%
- Uniontown3%
- Pittsburgh suburbs3%
- Butler2%
- New Kensington2%
- Wexford2%
Also: Aliquippa, Ellwood City, Homer City, Indiana, Avonmore, Black Lick, Brownsville, Charleroi, Connellsville, Derry, East Palestine, Enon Valley + 142 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call an 878 number?
Sales calls to homes and cell phones have legal hours, set by Pennsylvania law. Hold every 878 number to them, since you can't tell a work line from a personal cell.
What applies to 878Mon to Sat, 9 AM to 7 PM · Sun, no calls
- 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)
- Pennsylvania lawMon to Sat, 9 AM to 7 PM · Sun, no callsSince Oct. 18, 2026. Covers texts and business lines, for consumer goods and services. No calls on legal holidays either, which the tool doesn't track.73 P.S. 2245, as amended by Act 47 of 2026 (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
878 and 412
878 went into service on August 17, 2001. 878 and 412 cover the same area, so new numbers can get either code and neighbors can have different area codes. 878 holds 20% of the area's exchanges; 412 holds the most. Local calls take all 10 digits.
- 1947412 overlay
- 2001878 starts
Source: NANPA area code database
Calling a list of 878 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.
878 area code FAQ
What area code is 878?
878 is a Pennsylvania area code for Pittsburgh, Beaver Falls, Washington, Greensburg and 161 more places.
What time zone is the 878 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 412 the same as 878?
Same area, different code. 878 and 412 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 878 numbers?
Mon to Sat, 9 AM to 7 PM · Sun, no calls, local time, under Pennsylvania law.
When did the 878 area code start?
On August 17, 2001.
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