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.