Zip Area Code

Oakmont, Pennsylvania

Oakmont, Pennsylvania, in Allegheny County, has ZIP code 15139 and area code 412, with 878 as an overlay.

ZIP code
15139
Area codes
412, 878
Time zone
Eastern Time
Coordinates
40.5196, -79.8369

ZIP codes in Oakmont

ZIP codePost officeCountyArea codes
15139OakmontAllegheny County412, 878

Area codes for Oakmont

  • Area code 412

    In service since 1947. Shares its area with 878. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 878

    In service since August 17, 2001. Shares its area with 412 and 724. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Oakmont is in the Eastern Time zone.

Towns near Oakmont