Area Code 317: Everything You Need to Know
Quick Answer: Area code 317 covers central Indiana, including Indianapolis and nearby counties. Established in 1947, it plays a vital role in local telecommunications.
What is Area Code 317?
Area code 317 is part of the North American Numbering Plan (NANP) and has been serving central Indiana, particularly the Indianapolis metropolitan area, since 1947. This area code is essential for both local and long-distance communication within the region.
Key Details
- NPA Code: 317
- Type: Overlay with area code 463
- State: Indiana
- Dialing Requirement: Mandatory ten-digit dialing since October 2016
Geographic Coverage of Area Code 317
Where is Area Code 317 Located?
Area code 317 primarily covers the central part of Indiana, with its heart in Indianapolis. The area code extends to nine surrounding counties, providing a comprehensive communication network for the region.
Major Cities in Area Code 317
- Indianapolis: The state capital and largest city, known for its rich history and vibrant culture.
- Carmel: Recognized for its arts and design district.
- Fishers: A rapidly growing suburb with a family-friendly atmosphere.
- Greenwood: Offers a mix of suburban and urban living.
- Lawrence: Known for Fort Harrison State Park.
- Noblesville: Features a historic downtown and parks.
Technical and Network Insights
Network Infrastructure
Area code 317 is supported by major telecommunications carriers, ensuring robust connectivity across various services:
- AT&T
- Verizon
- T-Mobile
- Sprint
Services Offered
- Landline
- Wireless
- VoIP
Numbering Details
- Total Numbers Available: Not specified
- Utilization Rate: Not specified
- Exhaust Projection: Originally projected for 2017
Regulatory Framework and Historical Context
Who Regulates Area Code 317?
The Indiana Utility Regulatory Commission (IURC) oversees the implementation and regulation of area code 317, ensuring compliance with NANPA regulations.
Historical Milestones
- 1947: Initial implementation covering northern Indiana.
- 1948: Geographic reduction to central Indiana, with northern areas reassigned to area code 219.
- 1997: Further reduction with the introduction of area code 765.
- 2016: Introduction of area code 463 as an overlay, requiring ten-digit dialing.
Conclusion
Area code 317 remains a crucial part of Indiana???s telecommunications landscape, effectively supporting the communication needs of Indianapolis and its surrounding areas. The introduction of the overlay area code 463 ensures that the region can meet growing numbering demands while maintaining compliance with regulatory standards.
Further Information
For more insights on area codes and telecommunications, visit the North American Numbering Plan Administration. Explore related articles to deepen your understanding of Indiana's telecom infrastructure.