Area Code 412

About Area Code 412

Area code 412 is a geographic telephone area code assigned to Pittsburgh, Pennsylvania. It operates in the Eastern time zone and was first introduced in 1947. Original NANP code. Pittsburgh area. Overlay 878 (2001).

Within Pennsylvania, area code 412 shares numbering capacity with 12 other area codes. The state's 12,964,056-person population (2023 Census Bureau estimate) is served by a combined 13 active codes, with 412 primarily responsible for the Pittsburgh region. Pennsylvania's state capital is Harrisburg, and its largest city is Philadelphia.

When you receive a call from a 412 number on your Caller ID, the call originated from a phone number assigned to the 412 area code — but be aware that Local Number Portability (in effect since 2003) means the caller could be physically located anywhere in the US or Canada. Area code 412 only confirms where the number was originally assigned.

Where is the 412 area code located?

Area code 412 is assigned to Pittsburgh, Pennsylvania, in the Eastern time zone. The state of Pennsylvania uses 13 active area codes, and 412 is one of them. Calls placed from the 412 area code originate from numbers assigned by NANPA — the North American Numbering Plan Administrator — and the 412 prefix appears on Caller ID for both landline and wireless calls placed from this region.

The Eastern time zone observes Daylight Saving Time, shifting from UTC-5 to UTC-4 in summer. The local time shown above is always current, so you can quickly check whether it's a reasonable hour to call back.

What cities and counties use the 412 area code?

The 412 area code serves 12 notable cities, listed below in order of population. The largest city in the 412 territory is Pittsburgh (302,971 residents in Allegheny County).

• Pittsburgh, PA — 302,971 residents (11.8% of 412 numbers)
• Philadelphia, PA — 1,567,442 residents (60.8% of 412 numbers)
• Allentown, PA — 125,845 residents (4.9% of 412 numbers)
• Erie, PA — 93,928 residents (3.6% of 412 numbers)
• Reading, PA — 95,112 residents (3.7% of 412 numbers)
• Scranton, PA — 75,799 residents (2.9% of 412 numbers)
• Bethlehem, PA — 76,568 residents (3% of 412 numbers)
• Lancaster, PA — 58,039 residents (2.3% of 412 numbers)
• Harrisburg, PA — 50,118 residents (1.9% of 412 numbers)
• York, PA — 44,800 residents (1.7% of 412 numbers)

Phone number format in area code 412

All phone numbers within area code 412 follow the standard North American 10-digit format:(412) NXX-XXXX. The NXX is the central office prefix (also called an "exchange") and XXXX is the subscriber line number. For long-distance calls within the NANP, dial 1 + 412 + NXX + XXXX. From outside North America, dial your country's international access code, then 1 (the NANP country code), then the 10-digit number.

If you need to verify whether a specific 412 number is wireless, landline, or VoIP, you can use our reverse phone lookup tool. Be aware that number portability means the area code no longer guarantees the caller's physical location — only where the number was first assigned.

History of area code 412

Original NANP code. Pittsburgh area. Overlay 878 (2001).

The original 86 area codes were assigned by AT&T and Bell Labs in 1947 as part of the North American Numbering Plan. At the time, rotary-dial phones meant codes with lower digits (like 212 for NYC, 213 for LA, 312 for Chicago) were given to the largest cities because they took less time to dial. Today's area code assignments still reflect those early choices, even though touch-tone and cell phones made the original reason obsolete.

Is the 412 area code safe to answer?

Area code 412 itself is a normal geographic code with no elevated spam risk. That said, scammers can spoof any area code — including 412 — so if you don't recognize the full number, let it go to voicemail and verify the caller's identity before calling back.