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Area Code 412: Comprehensive Guide to Pittsburgh's Phone Network
Area code 412 serves Pittsburgh, PA, and nearby regions within the NANP. Explore its overlay type, established in 1947, covering Allegheny County and coordinates [40.44062, -79.99589]. Understand its regulatory framework, major carriers like Verizon and AT&T, and mandatory 10-digit dialing since 2001.
Area Code 412: Comprehensive Guide to Pittsburgh's Phone Network
Introduction
Where is Area Code 412 located? Area code 412 is a prominent area code in the North American Numbering Plan (NANP), covering Pittsburgh, Pennsylvania, and its surrounding regions. Known for its historical significance and the bustling city it serves, this area code is vital for residents and businesses alike.
Key Details and Technical Specifications
- NPA Code: 412
- Type: Overlay
- Implementation Date: 1947
- State: Pennsylvania
Geographic Coverage
Area code 412 covers a wide geographic area, including the city of Pittsburgh and parts of Allegheny, Washington, and Westmoreland counties. This ensures comprehensive coverage for a significant portion of southwestern Pennsylvania.
Major Cities Served
- Pittsburgh: Coordinates [40.44062, -79.99589]
- Bethel Park: Coordinates [40.32757, -80.0395]
- McKeesport: Coordinates [40.34785, -79.86422]
- Mount Lebanon: Coordinates [40.35535, -80.0495]
- Monroeville: Coordinates [40.42118, -79.7881]
- Penn Hills: Coordinates [40.50118, -79.83922]
- Plum: Coordinates [40.50035, -79.74949]
- Upper Saint Clair: Coordinates [40.3359, -80.08339]
- West Mifflin: Coordinates [40.3634, -79.86644]
Network Infrastructure and Carriers
Area code 412 is supported by a robust telecommunications infrastructure, providing a range of services to meet the needs of its users.
Major Carriers
- Verizon
- AT&T
- T-Mobile
- Comcast
Services Offered
- Landline
- Wireless
- VoIP
Regulatory Framework
The Pennsylvania Public Utility Commission (PUC) regulates area code 412, ensuring compliance with the North American Numbering Plan Administration (NANPA) guidelines. Since 2001, ten-digit dialing has been mandatory to accommodate the area code overlay.
Historical Milestones
- 1947: Area code 412 was established as one of the original North American area codes.
- 1998: Area code 724 was split from 412 to address the growing demand for new numbers.
- 2001: Area code 878 was introduced as an overlay to both 412 and 724, ensuring continued availability of phone numbers.
Conclusion
Area code 412 is integral to the telecommunications landscape of Pittsburgh and its surrounding areas. Its implementation history and regulatory management reflect the region's growth and the increasing demand for connectivity. For more information on area codes and number management, visit the North American Numbering Plan Administration.
For further insights into telecommunications in Pennsylvania, consider reading related articles on area code overlays and the impact of digital communication advancements.
Frequently Asked Questions
What area code serves Pittsburgh, Pennsylvania?
Pittsburgh, Pennsylvania is primarily served by area code 412.
When was area code 412 implemented?
Area code 412 was implemented in 1947 as one of the original North American area codes.
Why was area code 724 created?
Area code 724 was split from area code 412 in 1998 to accommodate the increasing demand for phone numbers in the region.
What is the overlay area code for 412?
Area code 878 was introduced in 2001 as an overlay to both area codes 412 and 724.
What counties does area code 412 cover?
Area code 412 covers Allegheny, Washington, and Westmoreland counties in southwestern Pennsylvania.
What are the coordinates of Pittsburgh, PA, within area code 412?
Pittsburgh's coordinates within area code 412 are [40.44062, -79.99589].
Which major cell phone carriers service the 412 area code?
Major carriers in area code 412 include Verizon, AT&T, T-Mobile, and Comcast.
What types of phone services are available in area code 412?
Area code 412 supports landline, wireless, and VoIP services.
Which regulatory body oversees area code 412?
The Pennsylvania Public Utility Commission (PUC) regulates area code 412, ensuring compliance with NANPA guidelines.
Is 10-digit dialing required for calls within area code 412?
Yes, 10-digit dialing has been mandatory in area code 412 since 2001 due to the implementation of the overlay area code.
When was area code 878 overlaid on area code 412?
Area code 878 was overlaid on area code 412 in 2001.
Where can I find more information about North American area codes?
You can find more information at the North American Numbering Plan Administration (NANPA) website: https://www.nationalnanpa.com/
Besides Pittsburgh, what other cities are covered by area code 412?
Other cities within area code 412 include Bethel Park, McKeesport, Mount Lebanon, Monroeville, Penn Hills, Plum, Upper Saint Clair, and West Mifflin.
What is the area code for Bethel Park, Pennsylvania?
Bethel Park, Pennsylvania is covered by area code 412.
What areas does area code 412 cover in Pennsylvania?
Area code 412 primarily covers Pittsburgh and surrounding areas in southwestern Pennsylvania. This includes parts of Allegheny, Washington, and Westmoreland counties, ensuring broad coverage for the region.
When was area code 412 originally implemented?
Area code 412 was implemented in 1947 as one of the original North American area codes. It has served Pittsburgh and the surrounding region since its inception.
Why does Pittsburgh have multiple area codes?
Pittsburgh has multiple area codes (412, 724, and 878) due to the increasing demand for phone numbers. Area code 724 was introduced in 1998, and 878 was added as an overlay in 2001 to accommodate growth.
How to dial a number in area code 412?
Ten-digit dialing is mandatory for all calls within area code 412, including local calls. This was implemented in 2001 to support the 878 overlay area code.
What is the area code 412 overlay?
Area code 878 is the overlay for area code 412 (and 724). An overlay means both area codes serve the same geographic area, requiring ten-digit dialing for all calls.
What major cell phone carriers operate in 412?
Major carriers in the 412 area code include Verizon, AT&T, T-Mobile, and Comcast. These carriers offer a range of services, including landline, wireless, and VoIP.
What is the type of area code for Pittsburgh (412)?
Area code 412 is designated as an overlay type. This means it shares its geographic region with other area codes (724 and 878), requiring 10-digit dialing for all calls.
When should I use 10-digit dialing for 412?
Ten-digit dialing (including the area code) is always required when calling any number within the 412 area code, even for local calls. This practice began in 2001.
Who regulates area code 412 in Pennsylvania?
The Pennsylvania Public Utility Commission (PUC) regulates area code 412, ensuring adherence to guidelines set by the North American Numbering Plan Administration (NANPA).
What is the NPA code for Pittsburgh, Pennsylvania?
The NPA (Numbering Plan Area) code for Pittsburgh, Pennsylvania is 412. This code is crucial for routing calls to the correct geographic area.
How to find coordinates for cities in area code 412?
The article provides coordinates for several cities within area code 412, including Pittsburgh, Bethel Park, and McKeesport. You can use these coordinates for mapping or location-based services.