The 412 area code covers Pittsburgh, Pittsburgh suburbs and 10 more places in Pennsylvania.
Area code 412 is in Pennsylvania, on Eastern Time. In the 412 area, phone numbers are given out most in Allegheny County, then Westmoreland and Washington counties. It has been in service since 1947. 878 covers the same area, so two neighbours can have different area codes.
- Where
- 8 counties in Pennsylvania, mostly Allegheny County, Westmoreland County and Washington County
- Time zone
- Eastern Time
- In service since
- 1947, one of the original area codes
- Shares its area with
- 878 (since 2001)
- Prefixes in use
- 762
- How to dial
- Local calls need all 10 digits: 412-555-0142.
Find out who called you from a 412 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (412) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Pittsburgh holds 63% of the phone prefixes in area code 412.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 762 prefixes in use shows where 412 numbers are actually given out.
- Pittsburgh483 prefixes, 63%
- Pittsburgh suburbs240 prefixes, 31%
- Elizabeth9 prefixes, 1%
- Clairton8 prefixes, 1%
- Greensburg5 prefixes, <1%
- Washington4 prefixes, <1%
- Butler3 prefixes, <1%
- Indiana2 prefixes, <1%
Also served: Uniontown, Beaver Falls, Rochester and Kittanning.
Of the carriers named here, AT&T Mobility holds the most phone number prefixes in area code 412: 60 of 762.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 762 prefixes in use in 412 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| AT&T MobilityMobile network | 60 | 8% |
| T-MobileMobile network | 49 | 6% |
| PAETEC (Windstream)Windstream's business phone network | 38 | 5% |
| Teleport (AT&T)AT&T's business phone network | 35 | 5% |
| Level 3 (Lumen)Lumen's business and wholesale network | 34 | 4% |
| SpokPaging network | 24 | 3% |
| 33 other carriers | 522 | 69% |
65% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
412 has been split once and overlaid once since 1947.
1947
412 is one of the original North American area codes.
1998
On February 1, 1998, 724 splits off and takes part of the 412 area.
2001
On August 17, 2001, 878 is added on top of 412, so new numbers here can get either code.
A 412 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 412 are 814, 330 and 440.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 412.
Where is area code 412?
412 covers Pittsburgh, Pittsburgh suburbs, Elizabeth and Clairton and 8 more places in Pennsylvania. In the 412 area, phone numbers are given out most in Allegheny County, then Westmoreland and Washington counties.
What state is area code 412 in?
Pennsylvania. 412 is a Pennsylvania area code on Eastern Time.
What cities use area code 412?
The places holding the most 412 prefixes are Pittsburgh, Pittsburgh suburbs, Elizabeth, Clairton, Greensburg, Washington, Butler and Indiana, out of 12 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 412?
No single phone company owns 412. NANPA's records list its 762 prefixes across many carriers, and the ones named on this page include AT&T Mobility, T-Mobile and PAETEC (Windstream). Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 412 in?
412 is on Eastern Time.
When did area code 412 start?
412 is one of the original North American area codes, in service since 1947.
Is 412 the same area as 878?
Yes. 878 (since 2001) covers the same ground as 412. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 412 number?
Local calls need all 10 digits: 412-555-0142.
Is 412 a toll-free number?
No. 412 is a regular area code for Pittsburgh and Pittsburgh suburbs in Pennsylvania, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 412?
The closest are 814/582 (Erie, Pennsylvania), 330/234 (Akron, Ohio), 440/436 (Willoughby, Ohio) and 216 (Cleveland, Ohio), measured between the centres of each area.
Who called me from a 412 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 412 a scam?
412 is a real Pennsylvania area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.