878 area code
Area code 878 is in Pennsylvania, including Pittsburgh, Monroeville, Coraopolis and Bridgeville. It's on Eastern Time.
878 is an overlay area code: it was added on top of 412 and 724 and covers the same area, so new numbers there can get either code.
Eastern Time
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Business hours are taken as 9 AM to 5 PM on weekdays. US telemarketing rules only allow sales calls between 8 AM and 9 PM local time.
Cities in area code 878
| City | Time zone |
|---|---|
| Pittsburgh, PA | Eastern Time |
| Monroeville, PA | Eastern Time |
| Coraopolis, PA | Eastern Time |
| Bridgeville, PA | Eastern Time |
| Carnegie, PA | Eastern Time |
| McKees Rocks, PA | Eastern Time |
| McKeesport, PA | Eastern Time |
| Sewickley, PA | Eastern Time |
| Bethel Park, PA | Eastern Time |
| Clairton, PA | Eastern Time |
| Homestead, PA | Eastern Time |
| Butler, PA | Eastern Time |
Other area codes in Pennsylvania
More: look up another area code · time zone converter · US time zones map
Questions people ask
Where is area code 878?
Area code 878 is in Pennsylvania, including Pittsburgh, Monroeville, Coraopolis and Bridgeville.
What time zone is area code 878?
878 is on Eastern Time (UTC−5, UTC−4 in summer).
What time is it in area code 878 right now?
The live clock at the top of this page shows the current local time in area code 878.