business phone · 8 min read
Area Code for Pittsburgh
Pittsburgh uses area code 412 (1947 original) plus 878 overlay (2001). Outer suburbs dial 724. History, neighborhood map, scam alerts, and how to get a local number.
Pittsburgh metro runs on two area codes: 412 for the city and Allegheny County core, and 878 as the overlay added in 2001 when number demand outpaced 412 inventory.
Outer suburbs — Westmoreland, Beaver, Butler, Washington, and eight more counties — dialed into a third code, 724, when it split from 412 in 1998. Together, these three codes form the North American Numbering Plan (NANP) footprint for western Pennsylvania.
This guide covers every Pittsburgh area code with dates, geography, neighborhood-level detail, the tech and sports identity behind 412, scam patterns to watch for, and how to claim a Pittsburgh business number today.
What’s the area code for Pittsburgh?
Pittsburgh city and most of Allegheny County are served by two overlapping area codes under the NANP:
| Code | Established | Coverage | Notes |
|---|---|---|---|
| 412 | 1947 | Pittsburgh city + most of Allegheny County + portions of Washington and Westmoreland counties | Original NANP code; strongest cultural identity |
| 878 | August 17, 2001 | Identical to 412 — full overlay on 412 and 724 territory | New numbers assigned from 2013 (724) and 2015 (412); 10-digit dialing mandatory since 2001 |
| 724 | February 1, 1998 | 14-county outer Pittsburgh suburbs | Split from 412; surrounds the 412 core; Cranberry Township, Greensburg, New Castle, Uniontown |
All three codes share Eastern Time (ET) — UTC−5 in winter, UTC−4 in summer.
A quick rule: if a number shows 412, it’s from the Pittsburgh core — the code the city built its identity around. If it shows 878, it’s the same geography, just a newer number. If it shows 724, the caller is in the broader western Pennsylvania suburban ring.
Pittsburgh metro area codes by region
412 — Pittsburgh city and Allegheny County core
Area code 412 covers Pittsburgh’s iconic neighborhoods and the densely populated Allegheny County municipalities surrounding the city:
- Downtown (Golden Triangle) — the confluence of the Allegheny, Monongahela, and Ohio rivers; PNC Park, Acrisure Stadium, PPG Place
- Strip District — Pittsburgh’s food and tech hub; Google Pittsburgh office; produce markets and converted loft offices
- Lawrenceville — fastest-growing neighborhood; tech startups, CMU spinoffs, robotics companies
- Oakland — University of Pittsburgh main campus, Carnegie Mellon University, UPMC flagship hospitals, Carnegie Library
- Squirrel Hill — dense residential; historically Pittsburgh’s Jewish community center; walkable commercial corridor
- Shadyside — upscale residential and retail; Walnut Street shopping corridor
- North Side — Acrisure Stadium (Steelers), PNC Park (Pirates), Mexican War Streets historic district
- South Side / Mt. Washington — Duquesne Incline, views of the Golden Triangle; South Side Works
- Sewickley / Mt. Lebanon — affluent Allegheny County suburbs; headquarters corridor for professional services
- Bethel Park, Penn Hills, McKeesport, Monroeville — outer Allegheny County municipalities; all 412
724 — outer Pittsburgh suburbs
Area code 724 rings around the 412 core across 14 Pennsylvania counties:
| County | Key Cities |
|---|---|
| Beaver | Beaver, Aliquippa, Ellwood City |
| Butler | Butler, Cranberry Township |
| Westmoreland | Greensburg, Latrobe, North Huntingdon |
| Washington | Washington, Waynesburg |
| Fayette | Uniontown |
| Lawrence | New Castle |
| Mercer | Sharon, Hermitage |
| Armstrong | Kittanning |
Cranberry Township (Butler County) is the fastest-growing municipality in the 724 footprint — home to Westinghouse Electric’s campus and a major logistics corridor.
878 — overlay on 412 and 724
Area code 878 shares the exact same territory as both 412 and 724. It has no geographic boundary of its own. Numbers assigned with 878 are simply newer allocations — there is no neighborhood, suburb, or demographic difference between a 412 and an 878 number.
History of Pittsburgh area codes
Pittsburgh’s area code history tracks every major wave of American telecommunications growth, from the post-war phone rollout to the mobile explosion of the 1990s.
1947 — 412 is born. When AT&T engineers designed the original North American Numbering Plan, area code 412 was assigned to the entire southwestern corner of Pennsylvania — from Butler County south to the West Virginia border. It was one of the original 86 NPAs. At the time, 412 had enough capacity for decades of analog-era growth.
1947 — 814 splits off central PA. The same year, area code 814 was carved out for central Pennsylvania, establishing the initial boundary between western and central PA calling zones. Sources: NANPA | PA PUC.
February 1, 1998 — 724 splits the suburbs. By the mid-1990s, the explosion of mobile phones, pagers, and fax machines pushed 412 toward exhaustion. The regional carrier Bell Atlantic initially proposed 724 as an overlay on 412 — but overlays were still a new concept and met public resistance. Instead, the PA PUC approved a geographic split: area code 724 was carved out of 412’s territory, covering everything outside Allegheny County. This made 412 a geographic “doughnut hole” — one of only six such configurations in North America — surrounded entirely by 724.
August 17, 2001 — 878 overlay, mandatory 10-digit dialing. Within two years of the 724 split, both 412 and 724 were again nearing exhaustion due to continued mobile growth. The PA PUC approved 878 as a true overlay on both codes. On August 17, 2001, 10-digit dialing became mandatory across all of southwestern Pennsylvania. However, the PA PUC chose to conserve numbers, and no 878 numbers were actually assigned until later.
February 15, 2013 — PA PUC begins 878 assignment (724 territory). The PA PUC announced it would start issuing 878 numbers in the 724 territory. The first 878 numbers were assigned in April 2013 — nearly 12 years after the overlay was activated.
September 15, 2015 — first 878 prefix in 412 territory. The first 878 central office prefix (999) was assigned in the 412 territory, meaning Pittsburgh city numbers could now carry the 878 code. NANPA projections estimate the combined 412/878 region will reach exhaustion around Q3 2038.
412 as Pittsburgh identity
No area code in Pittsburgh matters more than 412 — it’s the code the city wore through the steel era, the Super Bowl runs, and the tech renaissance.
The Steel City legacy. Pittsburgh’s 412 code was established when the city was the steel capital of the world. US Steel, Bethlehem Steel, and Carnegie Steel all called this exchange home. That industrial heritage is now architectural — the Carrie Blast Furnaces National Historic Landmark, the 16th Street Bridge, the rivers themselves.
Three championship teams. The Pittsburgh Steelers (NFL — six Super Bowl titles, the most in NFL history), the Pittsburgh Penguins (NHL — five Stanley Cup championships), and the Pittsburgh Pirates (MLB — three World Series titles, all pre-1980) all operate out of 412. Acrisure Stadium and PNC Park sit side-by-side on the North Shore of the Allegheny River. The Penguins play at PPG Paints Arena in the 412 core.
Pitt and Carnegie Mellon. The University of Pittsburgh (Pitt) and Carnegie Mellon University (CMU) anchor the Oakland neighborhood under 412. CMU’s robotics, AI, and computer science programs have produced more self-driving vehicle startups than any other single campus. The CMU-to-Strip-District pipeline feeds Pittsburgh’s current tech economy.
Tech renaissance. Google opened its Pittsburgh engineering office in 2006 — it remains one of Google’s largest US engineering sites outside the Bay Area and New York. Uber’s Advanced Technologies Group (ATG) launched its self-driving research in Pittsburgh; that work became Aurora Innovation (HQ: 412). Duolingo, the language-learning app with 500 million users, is headquartered in East Liberty under 412. The city that built America’s industrial foundation is now one of the country’s strongest AI and robotics clusters.
UPMC healthcare powerhouse. UPMC (University of Pittsburgh Medical Center) is the largest non-government employer in Pennsylvania and one of the largest health systems in the US, with 40+ hospitals and 800+ outpatient sites. Its flagship campus operates out of 412 in Oakland. Pittsburgh has more hospital beds per capita than almost any US metro.
“Yinz” and Pittsburghese. Pittsburgh has one of the most distinctive American regional dialects — “yinz” (you all), “n’at” (and that/etc.), “jagoff,” “jeet?” (did you eat?). The dialect is so specific that linguists treat Pittsburghese as a distinct variety of American English. The 412 code is part of that local identity in a way overlays never replicate.
Pittsburgh area code spam and scams
Pittsburgh area codes are actively spoofed by scammers who exploit local caller ID to increase answer rates. Pennsylvania-specific patterns include:
Duquesne Light impersonation. Callers spoof 412 numbers while claiming to represent Duquesne Light Company (the Pittsburgh electric utility), threatening power shutoff within the hour unless you pay immediately via prepaid card, Bitcoin, or wire transfer. Duquesne Light will never demand immediate payment by these methods — if you receive such a call, hang up and call Duquesne Light directly at the number on your bill.
Peoples Gas impersonation. The same playbook targets Peoples Natural Gas customers — Pittsburgh’s dominant gas utility. Scammers claim overdue balances and imminent service termination. Peoples Gas does not demand instant payment over the phone.
Fake UPMC recruitment. Callers spoofing 412 numbers offer UPMC nursing, administrative, or IT positions, then request Social Security numbers or bank details for “direct deposit setup.” UPMC recruitment is conducted through official channels at jobs.upmc.com — unsolicited calls requesting personal data are not legitimate.
IRS arrest threats. Callers spoofing Pittsburgh area codes claim to be IRS agents threatening immediate arrest for unpaid taxes. The IRS initiates contact by mail, never by phone. See FCC guidance on spoofing.
Jury duty scams. Callers claim you missed a federal jury summons and face arrest unless you pay a fine immediately. Federal courts do not collect fines over the phone.
How STIR/SHAKEN protects you. The FCC-mandated STIR/SHAKEN framework requires carriers to authenticate outbound calls and assign attestation levels — A (fully verified origin), B (partial), or C (unverified/gateway). Spoofed scam calls typically carry C-attestation or none, triggering “Spam Likely” flags on the recipient’s phone.
When you get a Pittsburgh number through DialPhone, outbound calls carry A-attestation — the highest STIR/SHAKEN trust level — so your legitimate business calls reach customers as verified, not filtered.
How to get a Pittsburgh business phone number
Getting a Pittsburgh 412 or 878 number for your business takes under 10 minutes through a cloud VoIP provider. No Pittsburgh office required.
Step 1: Choose your area code. Decide between 412 (maximum local recognition) and 878 (fully valid Pittsburgh number if 412 inventory is limited). Check 412 availability first — inventory can tighten in desirable exchanges.
Step 2: Sign up with a VoIP provider. DialPhone lets you search available Pittsburgh numbers by area code during signup at dialphone.com/pricing. Filter by 412 or 878 and select from available numbers.
Step 3: Assign the number to users or a team queue. Route the Pittsburgh number to any mobile, desktop app, or team queue. Configure a voicemail greeting, call menu, or AI receptionist to handle calls 24/7.
Step 4: Configure outbound caller ID. Set your Pittsburgh number as the outbound caller ID so every outbound call displays your local 412 or 878 number — not a generic 800 number or personal cell.
Step 5: Port your existing number if needed. Already have a Pittsburgh number with another carrier? Bring it to DialPhone via number porting (typically 2–5 business days). See our number porting guide for the full process.
See DialPhone pricing for all plan details, or start a free trial to claim your Pittsburgh number today.
Famous companies in Pittsburgh area codes
Pittsburgh’s 412 code maps to one of the most diversified Fortune 500 clusters outside New York and Chicago — spanning finance, energy, healthcare, technology, and consumer goods.
PNC Financial Services Group — headquartered at One PNC Plaza in downtown Pittsburgh; one of the largest US banks by assets. The PNC Park naming rights reflect the bank’s deep Pittsburgh roots.
UPMC — University of Pittsburgh Medical Center; HQ Pittsburgh (412); largest non-government employer in Pennsylvania with 90,000+ employees across 40+ hospitals.
US Steel — HQ at 600 Grant Street, Pittsburgh (412); the company Andrew Carnegie and J.P. Morgan built; still a major North American steel producer.
PPG Industries — HQ One PPG Place, Pittsburgh (412); global paints, coatings, and glass manufacturer; the company that gave PPG Paints Arena its name.
Kraft Heinz — co-headquartered in Pittsburgh (412) and Chicago; the H.J. Heinz legacy lives at the Pittsburgh HQ on Penn Avenue; 57 varieties remain a Pittsburgh icon.
EQT Corporation — HQ Pittsburgh (412); largest US natural gas producer by volume; Appalachian Basin operator.
Westinghouse Electric — HQ Cranberry Township (724, Butler County); nuclear energy technology company with deep Pittsburgh roots; George Westinghouse himself was a Pittsburgh industrialist.
Duolingo — HQ in East Liberty, Pittsburgh (412); 500 million users worldwide; the largest language-learning platform in the world, built out of Carnegie Mellon research.
Aurora Innovation — HQ Pittsburgh (412); autonomous vehicle technology; successor to Uber’s Advanced Technologies Group; developing self-driving trucks and ride-hail vehicles.
Pittsburgh area code FAQ
Pittsburgh area code FAQ
What is the area code for Pittsburgh?
Pittsburgh's primary area code is 412, one of the original 86 NANP codes created in 1947. Area code 878 was added as an overlay in 2001, covering the same geography as 412 and assigning new numbers when 412 inventory runs low.
The outer Pittsburgh suburbs — Westmoreland, Beaver, Butler, and surrounding counties — use area code 724, which split from 412 on February 1, 1998.
What is the 878 area code in Pittsburgh?
Area code 878 is an overlay on both 412 (Pittsburgh city/Allegheny County) and 724 (outer suburbs). It was activated on August 17, 2001, but the Pennsylvania PUC did not begin assigning 878 numbers until April 2013 in the 724 territory and September 2015 in the 412 territory.
If you receive a call from an 878 number, it is a legitimate Pittsburgh-area call. 878 carries no geographic or demographic difference from 412 — it simply means the number was assigned after 412 inventory tightened.
What is the 724 area code near Pittsburgh?
Area code 724 covers the outer Pittsburgh suburbs across 14 Pennsylvania counties, including Beaver, Butler, Washington, Westmoreland, Fayette, Lawrence, and Mercer counties. It was created on February 1, 1998, when it split from 412.
Major 724 cities include Cranberry Township, Greensburg, Uniontown, New Castle, Latrobe, and Washington, PA. Residents and businesses in these areas dial 724, while Pittsburgh city and most of Allegheny County remain 412.
Is 412 or 878 more prestigious for a Pittsburgh business number?
Area code 412 carries far more cultural recognition — it's the code Pittsburgh residents grew up with and the one associated with the Steelers, Penguins, UPMC, and the Steel City identity. For B2B businesses, a 412 number signals established Pittsburgh presence.
878 is fully legitimate and reaches the same geography, but most Pittsburgh businesses actively seek 412 numbers for brand recognition. DialPhone checks 412 availability first; if 412 inventory is exhausted, 878 is a fully equivalent alternative.
Do I need a Pittsburgh office to get a 412 number?
No. Virtual (VoIP) phone numbers are not tied to a physical address. Any business anywhere in the US can obtain a Pittsburgh 412 or 878 number through a cloud phone provider and route calls to any device — mobile, desktop, or softphone.
DialPhone assigns available Pittsburgh numbers in minutes. Outbound calls display your Pittsburgh number as caller ID, and STIR/SHAKEN A-attestation ensures your calls reach customers as verified rather than flagged as suspected spam.
Why do Pittsburgh-area calls require 10-digit dialing?
Ten-digit dialing has been mandatory across southwestern Pennsylvania since August 17, 2001, when area code 878 was activated as an overlay on both 412 and 724. Overlays require 10-digit dialing because two or more area codes serve the same geography — you must include the area code so the network knows which NPA to route the call to.
Before the 878 overlay, local 412-to-412 calls could be dialed with 7 digits. That changed with the overlay introduction.
What Pittsburgh area code scams should I watch for?
Common Pittsburgh-area phone scams include Duquesne Light impersonation (threatening power shutoff unless you pay immediately), Peoples Gas impersonation, fake UPMC recruitment calls asking for personal details, IRS arrest threats, and jury duty scams.
None of these organizations — Duquesne Light, Peoples Gas, UPMC, or the IRS — will demand immediate payment by gift card or wire transfer. If you receive such a call, hang up and call the organization directly using the number on their official website. See FCC guidance on spoofing at fcc.gov.
Get a Pittsburgh business number
A verified Pittsburgh 412 number builds immediate local trust — whether you’re a national company entering the Pittsburgh market or a local business that needs calls answered rather than screened.
DialPhone provides Pittsburgh 412 and 878 numbers with STIR/SHAKEN A-attestation, AI receptionist, call recording, and SMS — all on a single plan with no hardware or Pittsburgh office required.
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About the author
Growth Operations Lead at DialPhone
Darshan leads Growth Operations at DialPhone, where he owns three interconnected programs: the comparison content operation, the open VoIP Pricing Dataset, and the test-call methodology used to verify every pricing claim published on the site.
His research process starts with hands-on product trials and live vendor quotes — not marketing pages. Pricing figures are cross-checked against actual invoices and re-verified on a rolling quarterly cycle, with the underlying dataset kept public for independent re-verification. That dataset now covers 40+ VoIP and virtual-number providers across the US and Canada market.
Darshan also leads DialPhone's AI receptionist evaluation program, running structured test-call scenarios across English, Spanish, and French to assess transcription accuracy, intent routing, and escalation behavior. Methodology notes and raw scoring are archived in the research section.
For factual corrections or dataset discrepancies, Darshan can be reached at the DialPhone editorial address. Verified corrections are published as errata with a changelog date — no silent edits.