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Area Code 878 Location & Details

State / Region: Pennsylvania • Country: United States

Major Cities Covered: Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Monroeville, Plum, New Castle, Murrysville, Baldwin, Hermitage

Standard Dial Format
+1 (878) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 878?
PennsylvaniaState Hub →
Country Territory
United States
878 Area Code Time Zone
Eastern
878 Overlay Codes
412, 724

Area Code 878 Geographic Map

Interactive location bounds and coverage area for Pennsylvania (Eastern Timezone)

Lat: 40.56° • Lng: -79.79°
📍 Geographic Center: PennsylvaniaMap data © OpenStreetMap contributors

Where is Area Code 878 Located?

Telephone area code 878 is assigned to Pennsylvania in United States. It serves cities and metropolitan communities including Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Monroeville, Plum, New Castle, Murrysville, Baldwin, Hermitage.

Historical Context & Area Code Overlay Information:878 serves Pennsylvania (United States).

For local and long-distance calls within area code 878, standard 10-digit dialing (878) XXX-XXXX applies.

Who Called Me from Area Code 878?

Received an unknown call, missed call, or text scam from area code 878? Here is how to trace who is calling from 878 area code and verify unknown numbers safely:

1.
Identify Missed Calls & Voicemails:

Legitimate contacts usually leave a detailed voicemail or caller ID record.

2.
Watch Out for Neighbor Spoofing:

Robocallers often fake incoming caller ID numbers using your local 878 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 878:

Search public white-pages or use caller intelligence guides before returning unfamiliar calls.

Learn How Reverse Phone Lookups Work→

How to Call Area Code 878 & Dialing Format

When placing a phone call to a number in area code 878, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (878) + 7-digit number.
  • Calling from an international location outside +1: Dial your country's international exit code (e.g. 011 in US or + on mobile) + 1 + 878 + 7-digit number.
  • Do I need to dial area code 878 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.

Top Cities & Municipalities Served in Area Code 878

Urban centers, census places, and communities within the +1-878 calling area

50 Major Cities Listed
City NameCountyPopulation% of 878 Pop
PittsburghAllegheny County307,63234.2%
Penn HillsAllegheny County39,4524.4%
Mount LebanonAllegheny County32,5523.6%
Bethel ParkAllegheny County32,0743.6%
MonroevilleAllegheny County27,6853.1%
PlumAllegheny County26,2252.9%
New CastleLawrence County21,1752.4%
MurrysvilleWestmoreland County20,6362.3%
BaldwinAllegheny County20,5162.3%
HermitageMercer County16,3081.8%
Franklin ParkAllegheny County14,9781.7%
IndianaIndiana County14,6971.6%
WhitehallAllegheny County14,5211.6%
GreensburgWestmoreland County14,4621.6%
WashingtonWashington County13,3771.5%
ButlerButler County12,8791.4%
SharonMercer County12,6481.4%
Jefferson HillsAllegheny County12,3571.4%
New KensingtonAllegheny County11,7591.3%
Lower BurrellAllegheny County11,4701.3%

Counties Covered by Area Code 878

Geographic county distribution and population coverage across Pennsylvania

County NameTotal Population% of 878 Area% of County
Allegheny County1,227,17471.8%53%
Westmoreland County350,4735.7%15%
Beaver County165,7695.0%27%
Mercer County108,2384.7%39%
Lawrence County84,0873.2%34%
Washington County210,6352.5%11%
Fayette County123,9591.8%13%
Lackawanna County216,4181.7%7%
Indiana County83,2571.6%18%
Butler County199,3001.4%6%
Venango County49,5180.7%12%

☎️Area Code 878 Exchange Prefixes & Carriers

Showing 50 of 204 central office 3-digit prefixes and assigned telecom carriers

57% Landline7% Wireless36% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(878) 200-📞LandlineSCOTTDALEBOOST SUBSCRIBERCO L.L.C.05/26/2023
(878) 201-💻VoIPROCHESTERPEERLESS NETWORK OF PENNSYLVANIA, LLC - PA04/17/2013
(878) 202-📞LandlineSHARONTWC IP ENABLED SERVICES, LLC05/31/2013
(878) 203-📞LandlineCHARLEROICENTURYLINK COMMUNICATIONS, LLC05/21/2015
(878) 204-📞LandlineSHEAKLEYVLWINDSTREAM PENNSYLVANIA, INC.04/22/2015
(878) 205-💻VoIPCONNELLSVLONVOY, LLC - PA01/08/2016
(878) 206-💻VoIPFAIRCHANCEONVOY, LLC - PA03/21/2016
(878) 207-📞LandlineROCHESTERCOMCAST IP PHONE, LLCN/A
(878) 208-📞LandlineCRIDERSCORMCIMETRO ACCESS TRANSMISSION SERVICES LLC08/11/2015
(878) 209-📞LandlineALIQUIPPABOOST SUBSCRIBERCO L.L.C.05/26/2023
(878) 210-📞LandlineMIDWAYWINDSTREAM PENNSYLVANIA, INC.05/23/2017
(878) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(878) 212-📱WirelessWASHINGTONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA11/30/2017
(878) 213-💻VoIPPTTSBGZON1BANDWIDTH.COM CLEC, LLC - PA12/04/2018
(878) 214-📞LandlineGREENSBURGIDT AMERICA, CORP. - PA12/01/2017
(878) 215-📞LandlineINDIANABOOST SUBSCRIBERCO L.L.C.05/31/2023
(878) 216-💻VoIPREPUBLICONVOY, LLC - PA08/22/2018
(878) 217-📞LandlineCRIDERSCORLEVEL 3 COMMUNICATIONS, LLC - PA12/07/2018
(878) 218-📱WirelessWASHINGTONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA02/12/2015
(878) 219-📞LandlineFARMINGTONCOMCAST IP PHONE, LLC02/19/2019
(878) 220-📞LandlineEXPORTMCIMETRO ACCESS TRANSMISSION SERVICES LLC01/16/2018
(878) 221-📞LandlineBUTLERAERIAL COMMUNICATIONS, INC.12/14/2017
(878) 222-💻VoIPNEWWLMNGTNONVOY, LLC - PAN/A
(878) 223-📱WirelessUNIONTOWNCSC WIRELESS, LLC11/08/2019
(878) 224-📱WirelessFORD CITYNEW CINGULAR WIRELESS PCS, LLC - IL01/17/2020
(878) 225-💻VoIPELLWOOD CYONVOY, LLC - PA12/10/2018
(878) 226-💻VoIPWASHINGTONONVOY, LLC - PA01/28/2021
(878) 227-📞LandlineBEAVER FLSAERIAL COMMUNICATIONS, INC.09/14/2020
(878) 228-📞LandlineUNIONTOWNCENTURYLINK COMMUNICATIONS, LLCN/A
(878) 229-📱WirelessWASHINGTONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA02/05/2020
(878) 230-📞LandlinePTTSBGZON4HD CARRIER LLC04/27/2021
(878) 231-💻VoIPWEXFORDONVOY, LLC - PA06/16/2020
(878) 232-💻VoIPELLWOOD CYONVOY, LLC - PA01/28/2021
(878) 233-💻VoIPPRINCETONBANDWIDTH.COM CLEC, LLC - PA01/28/2021
(878) 234-📞LandlinePTGSBNZN23AERIAL COMMUNICATIONS, INC.08/04/2023
(878) 235-📞LandlineROCHESTERTELNYX LLC02/04/2021
(878) 236-📞LandlineCRIDERSCORAERIAL COMMUNICATIONS, INC.04/15/2021
(878) 237-📞LandlineBEAVER FLSSTRATUS NETWORKS05/26/2021
(878) 238-📞LandlineLIGONIERLAUREL HIGHLAND TELEPHONE COMPANY - PA02/11/2016
(878) 239-📞LandlineZELIENOPLECOMCAST IP PHONE, LLC10/25/2021
(878) 240-📞LandlineCONNELLSVLVONAGE AMERICA LLC06/10/2021
(878) 241-💻VoIPSMITHSFRRYBANDWIDTH.COM CLEC, LLC - PA07/21/2021
(878) 242-💻VoIPNEW CASTLEBANDWIDTH.COM CLEC, LLC - PA10/11/2021
(878) 243-📞LandlineWASHINGTONTELNYX LLC02/05/2021
(878) 244-📱WirelessSLIPPERYRKMETROPCS, INC.05/13/2021
(878) 245-📞LandlineBEAVER FLSAERIAL COMMUNICATIONS, INC.12/14/2021
(878) 246-📞LandlineCLAYSVILLECOMCAST IP PHONE, LLC11/05/2021
(878) 247-📞LandlineBELLEVRNONAERIAL COMMUNICATIONS, INC.12/14/2021
(878) 248-📞LandlineGIBSONIAPAETEC ITEL, LLC02/22/2022
(878) 249-📞LandlineLEECHBURGAERIAL COMMUNICATIONS, INC.12/15/2021

Frequently Asked Questions about Area Code 878

Where is area code 878 located?

Area code 878 is located in Pennsylvania (United States), serving cities like Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Monroeville, Plum, New Castle, Murrysville, Baldwin, Hermitage.

What timezone is area code 878?

Area code 878 operates in the Eastern timezone.

What state is area code 878?

Area code 878 is assigned to the state / telecom territory of Pennsylvania.

Is area code 878 a scam or dangerous?

Area code 878 is an official geographic area code for Pennsylvania. However, beware of robocaller spoofing.

Pennsylvania State Area Codes

View complete directory of telephone area codes assigned to Pennsylvania.

Explore Pennsylvania Directory

Get a 878 Business Phone Number

How to acquire a virtual phone number or business line with area code 878 for local customer trust in Pennsylvania.

Get 878 Business Number
🛡️ Scam & Safety Directory

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Overlay & Nearby Area Codes for Pennsylvania

Explore neighboring telecom prefixes sharing geographical boundaries with area code 878.

412
Eastern
Area Code 412
Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Monroeville, Baldwin, Whitehall, Jefferson Hills, Brentwood, Pleasant Hills
724
Eastern
Area Code 724
Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Monroeville, Plum, New Castle, Murrysville, Baldwin, Hermitage
215
Eastern
Area Code 215
Philadelphia, Norristown, Lansdale, Bristol, Morrisville, Perkasie, Conshohocken, Quakertown, Hatboro, Doylestown
223
Eastern
Area Code 223
Lancaster, Harrisburg, York, Lebanon, Chambersburg, Carlisle, Hanover, Ephrata, Elizabethtown, Waynesboro
267
Eastern
Area Code 267
Philadelphia, Norristown, Lansdale, Bristol, Morrisville, Perkasie, Conshohocken, Quakertown, Hatboro, Doylestown
272
Eastern
Area Code 272
Scranton, Wilkes-Barre, Hazleton, Monroeville, Williamsport, West Mifflin, Mckeesport, Dunmore, Wilkinsburg, Kingston