Area Code 336: Comprehensive Guide to Technical Details and Coverage
Info: Area code 336 is a key part of the North American Numbering Plan (NANP), covering north-central and northwestern North Carolina, including the Piedmont Triad region.
Technical Specifications
- NPA Code: 336
- Type: Overlay
- Implementation Date: December 15, 1997
- State: North Carolina
Geographic Coverage
Area code 336 spans a significant portion of north-central and northwestern North Carolina, covering the Piedmont Triad region and parts of the northern Foothills and Mountains.
Major Cities
- Asheboro: (35.70791, -79.81364)
- Burlington: (36.09569, -79.4378)
- Greensboro: (36.07264, -79.79198)
- High Point: (35.95569, -80.00532)
- Winston-Salem: (36.09986, -80.24422)
Numbering and Utilization
- Total Numbers Available: Data not available
- Utilization Rate: Data not available
- Exhaust Projection: 2016 (leading to overlay code 743)
Network Infrastructure
Major Carriers
- AT&T
- Verizon
- T-Mobile
- Spectrum
Services Offered
- Landline
- Wireless
- VoIP
Regulatory Framework
- Regulatory Body: North Carolina Utilities Commission
- Dialing Requirements: 10-digit dialing for local calls within the 336/743 area codes
- NANPA Regulations: Compliance with NANPA guidelines for area code allocation and exhaustion projections
Historical Milestones
- December 15, 1997: Area code 336 was split from area code 910.
- October 24, 2015: Overlay code 743 introduced, requiring 10-digit dialing.
- April 23, 2016: Mandatory 10-digit dialing for local calls within the 336/743 area codes.
Conclusion
Area code 336 is integral to the telecommunications infrastructure of north-central and northwestern North Carolina. The introduction of overlay code 743 and the shift to 10-digit dialing underscore the region's growth and the rising demand for phone numbers.
For more information, visit the North American Numbering Plan Administration.