The 412 area code is the primary phone code for Pittsburgh, Pennsylvania and inner Allegheny County. One of the original 1947 codes, it is the historic heart of southwestern Pennsylvania and is now overlaid by area code 878. If a 412 number has appeared on your caller ID, this guide explains where it comes from, how to dial it, and how to stay safe from spoofed calls.

Quick Summary: Area Code 412 at a Glance

DetailInformation
Area Code412
StatePennsylvania (PA)
Major CitiesPittsburgh, McKeesport, Bethel Park
Time ZoneEastern Time (ET)
Country Code+1 (USA)
Overlay Codes878 (co-located)

Geographic Coverage & Major Cities

Area code 412 covers the city of Pittsburgh and the inner ring of Allegheny County in southwestern Pennsylvania. As the founding code of the region, it anchors the urban core, while the surrounding suburbs use the neighboring 724 code and the 878 overlay.

  • Pittsburgh – the second-largest city in Pennsylvania and a major economic hub
  • Inner Allegheny County – the dense communities surrounding the city
  • McKeesport & Bethel Park – established Allegheny County communities
  • The Pittsburgh metro core – downtown, the universities, and the river neighborhoods

As the original Pittsburgh code, a 412 number is prized as a mark of authentic, long-established roots in the Steel City.

A Brief History of Area Code 412

Area code 412 was one of the original area codes established in 1947 and once covered a large part of southwestern Pennsylvania. In 1998, the suburbs split off into the new 724 code, leaving 412 with Pittsburgh and inner Allegheny County. In 2014, the 878 overlay was added across both 412 and 724, and 10-digit dialing became mandatory.

Time Zone & Best Time to Call

Numbers in the 412 area code use Eastern Time (ET). The region observes Daylight Saving Time, shifting from EST (UTC-5) to EDT (UTC-4) between March and November each year.

Best time to call: Standard business hours run 9:00 AM to 5:00 PM Eastern, Monday through Friday. Eastern Time matches New York and is three hours ahead of the West Coast, so late morning is usually a safe window from either coast.

How to Dial Phone Numbers in Area Code 412

Because 412 shares its region under an overlay, the area requires 10-digit dialing on every call.

Calling within the United States or Canada

  • 10-digit dialing: Include the area code – 412-XXX-XXXX.
  • 11-digit dialing: You can also dial 1-412-XXX-XXXX; the leading 1 is the NANP country code.

Calling from outside the United States

  • Format: [exit code] + 1 + 412 + XXX + XXXX
  • From the UK, Europe, or most of Asia/Africa: 00 1 412 XXX XXXX
  • From any mobile phone worldwide: +1 412 XXX XXXX

Is Area Code 412 a Scam? Safety & Protection Tips

Area code 412 is a legitimate Pennsylvania area code – a call from it is not fraudulent by default. However, scammers frequently spoof local codes like 412, faking the caller ID so their number appears to come from a trusted local line. Neighbor spoofing, which mimics the first six digits of your own number, is especially common.

Common scam tactics linked to this region

Scam typeWhat to watch for
Government impersonationCallers posing as the IRS or SSA threatening arrest or fines
Bank & card fraud alertsClaims of suspicious activity seeking your account details
Utility shut-off threatsFake Duquesne Light or West Penn Power disconnection demands
Package delivery scamsFake texts or calls about a failed delivery with a bad link

How to report, block, and look up 412 callers

  1. Never share personal or financial details with an unexpected caller, however urgent they sound.
  2. Block the number using your phone’s built-in call-blocking feature or a reputable call-screening app.
  3. Look up the number with a trusted reverse phone lookup before returning any call.
  4. Report it to the FTC at reportfraud.ftc.gov and register at DoNotCall.gov.
Red flag: A genuine agency or bank will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Hang up and call back using an official number you find yourself.

Nearby & Related Area Codes in Pennsylvania

Area code 412 shares and borders several other Pennsylvania codes:

  • 724 – the Pittsburgh suburbs, split from 412 in 1998 (see our 724 area code guide)
  • 878 – the overlay covering both 412 and 724 (see our 878 area code guide)
  • 814 & 582 – central and western Pennsylvania to the east (see our 814 area code guide)
  • 570 & 272 – northeastern Pennsylvania (see our 570 area code guide)

Explore more codes across the state on our Pennsylvania area codes hub, or browse every prefix in our US area codes directory.

↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.

Explore Neighboring States

Researching area codes just across the state line? Start with these codes in the states that border Pennsylvania:

Frequently Asked Questions About Area Code 412

Where is the 412 area code located?

Area code 412 covers Pittsburgh and inner Allegheny County, Pennsylvania. It operates on Eastern Time and is overlaid by area code 878.

What is the difference between 412, 724, and 878?

412 covers Pittsburgh and inner Allegheny County, 724 covers the surrounding suburbs, and 878 is an overlay layered over both. Together they serve the greater Pittsburgh region.

Is 412 a landline or cell phone area code?

Both. Area code 412 serves landlines, mobile phones, and VoIP numbers throughout Pittsburgh.

Should I answer a call from an unknown 412 number?

If you are not expecting the call, let it go to voicemail. Legitimate callers leave a message, while spoofed or robocall numbers usually will not. Verify any unfamiliar number with a reverse lookup before calling back.

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