878 Area Code — PA
Area code 878 serves PA in the Eastern time zone, in service since 2001. The FCC has 32 unwanted-call complaints against 31 different 878 numbers on record. Look up the exact number that called you below.
Most-reported 878 numbers
Ranked by FCC unwanted-call complaints. Click a number for its full report.
878 unwanted-call complaints, last 12 months
Monthly FCC complaint volume against 878 numbers. Spikes usually mark an active robocall campaign cycling through the code.
About area code 878
- Serves
- PA
- Time zone
- Eastern
- In service since
- 2001-08-17
- Overlay
- Yes — 10-digit dialing
Source: NANPA numbering records, refreshed weekly.
Spam calls from 878? What to know
Seeing repeated missed calls from 878 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in PA — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.
Area code 878 FAQs
Where is area code 878?
Area code 878 serves PA, in the Eastern time zone. It is part of an overlay complex, so multiple area codes serve the same territory and 10-digit dialing is required. It has been in service since 2001.
Why do I keep getting calls from 878 numbers?
Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 878 may not originate from PA at all. Look up the full 10-digit number on this site to see its complaint history before calling back.
Are 878 numbers safe to call back?
Area codes themselves are neither safe nor unsafe — 878 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 32 unwanted-call complaints against 31 distinct 878 numbers in our current data window. Check the specific number's report page before returning a missed call.