--- title: "Area code 412: Pennsylvania, United States" url: "https://lookvalid.com/area-code/412.md" canonical_url: "https://lookvalid.com/area-code/412" last_updated: "2026-10-23" type: "reference" summary: "Area code 412 serves Pennsylvania, United States. Number formats, numbering rules, a live phone validator and the other codes in Pennsylvania." --- # Area code 412: Pennsylvania, United States Area code 412 serves Pennsylvania, United States. Number formats, numbering rules, a live phone validator and the other codes in Pennsylvania. NANPA lists 760 central office codes (prefixes) in use in area code 412, held by 38 holders across 32 rate centers. The largest rate center is PTTSBGZON1, with 312 prefixes (41%). Verizon Pennsylvania holds the most prefixes, 246 (32%). 65% of the prefixes are pooled, which means their thousands-blocks can belong to different companies. The FCC unwanted-call data has 4,024 complaints on file for 3,056 numbers in 412, most often filed as "Unwanted Calls". These are consumer reports, not findings. ## Facts - In service since: 1947-01-01 - Time zone: Eastern (E) - Assigned overlays: 878 (2001-08-17) - Prefixes in use: 760 - Pooled prefixes: 491 (65%) - Rate centers: 32 - Companies holding prefixes: 38 - Assignment dates on file: 2001-01-22 to 2026-03-25 (191 prefixes) - ZIP codes in its places: 14 ## Rate centers | Rate center | Prefixes | Share | | --- | --- | --- | | PTTSBGZON1 | 312 | 41% | | PTGSBNZN14 | 41 | 5% | | PTTSBGZON6 | 34 | 4% | | PTGSBNZN22 | 32 | 4% | | PTTSBGZON7 | 32 | 4% | | PTGSBNZN10 | 25 | 3% | | PTGSBNZN15 | 25 | 3% | | PTTSBGZON2 | 25 | 3% | | 24 other rate centers | 234 | 31% | ## Carriers | Holder | Prefixes | Share | | --- | --- | --- | | Verizon Pennsylvania | 246 | 32% | | Verizon Wireless | 86 | 11% | | New Cingular Wireless PCS | 60 | 8% | | Mcimetro Access Transmission Services | 57 | 8% | | Aerial Communications | 49 | 6% | | Onvoy | 42 | 6% | | 32 other carriers | 220 | 29% | A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company. ## History - 1947-01-01: Area code 412 went into service. - 1998-02-01: Area code 724 went into service and names 412 as its parent. - 2001-08-17: Area code 878 went into service as an overlay in the same area as 412. ## Nearest area codes The area codes closest to 412, measured between the centers of the ZIP code places they serve, are 724 (about 10 miles), 582 (about 60 miles), 814 (about 60 miles), 234 (about 91 miles) and 330 (about 91 miles). ## ZIP codes 14 ZIP codes fall in places that have a rate center in this area code. The places with the most are Butler, PA (3 ZIP codes), Greensburg, PA (3 ZIP codes) and Indiana, PA (2 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes. ## Complaints on file 4,024 complaints for 3,056 numbers. Numbers whose latest complaint falls in each year: - 2023: 134 - 2024: 179 - 2025: 101 ## Questions ### Where is area code 412? NANPA assigns area code 412 to Pennsylvania, United States. ### In which state does area code 412 sit? Pennsylvania. 412 is one of 15 area codes the NANPA table assigns to the state. ### Which places does area code 412 cover? The places with the most ZIP codes among the rate centers in 412 are Butler, PA, Greensburg, PA and Indiana, PA. The rate center list on this page shows all of them. ### Who owns area code 412? NANPA assigns area codes. Within 412, Verizon Pennsylvania holds the most prefixes, 246 prefixes or 32%. ### Which time zone does 412 use? The NANPA NPA report lists the time zone for 412 as Eastern (E). ### What year did 412 enter service? The NANPA NPA report gives an in-service date of 1947-01-01, so 412 has been in use since 1947. ### Does area code 412 have an overlay? Yes. 878 (in service 2001-08-17) shares the same area with 412, so numbers from all of them are local to each other. ### Which area codes are nearest to 412? The area codes closest to 412, measured between the centers of the ZIP code places they serve, are 724 (about 10 miles), 582 (about 60 miles), 814 (about 60 miles), 234 (about 91 miles) and 330 (about 91 miles). ### How many prefixes does area code 412 have? NANPA's report dated 2026-10-17 lists 760 prefixes in service in 412, spread over 32 rate centers and 38 holders. ### Are there complaints about 412 numbers? The FCC data on file has 4,024 complaints for 3,056 numbers in 412. They are unverified consumer reports. A number with no complaints on file is not proven safe. Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).