Area Code 209: Comprehensive Guide to Technical Specifications and Data
Area code 209 is a prominent telephone area code in the North American Numbering Plan (NANP), covering the northern Central Valley of California, including key cities such as Stockton, Modesto, and Merced.
Technical Specifications
- NPA Code: 209
- Type: Single
- Implementation Date: October 26, 1957
- State: California
Geographic Coverage
Area code 209 serves the northern Central Valley of California, encompassing the San Joaquin Valley and the Sierra Foothills.
Major Cities
- Atwater, CA (Latitude: 37.34772, Longitude: -120.60908)
- Ceres, CA (Latitude: 37.59493, Longitude: -120.95771)
- Lodi, CA (Latitude: 38.1302, Longitude: -121.27245)
- Los Banos, CA (Latitude: 37.05828, Longitude: -120.84992)
- Manteca, CA (Latitude: 37.79743, Longitude: -121.21605)
- Merced, CA (Latitude: 37.30216, Longitude: -120.48297)
- West Modesto, CA (Latitude: 37.61754, Longitude: -121.03914)
- Stockton, CA (Latitude: 37.9577, Longitude: -121.29078)
- Tracy, CA (Latitude: 37.73987, Longitude: -121.42618)
- Turlock, CA (Latitude: 37.49466, Longitude: -120.84659)
Numbering Statistics
- Total Numbers Available: Data not specified
- Utilization Rate: Data not specified
- Exhaust Projection: November 28, 2022 (introduction of overlay code 350)
Network Infrastructure
Major Carriers
[List of major carriers with market share percentages not specified]
Services
- Landline
- Wireless
- VoIP
Regulatory Framework
- Regulatory Body: North American Numbering Plan Administrator (NANPA)
- Dialing Requirements: 1+10-digit dialing
- NANPA Regulations: Transition to 10-digit dialing due to the designation of 988 as the National Suicide Prevention Hotline
Historical Milestones
- October 26, 1957: Area code 209 created from area code 415.
- November 14, 1998: Southern half of 209 split to form area code 559.
- October 24, 2021: Transition to 1+10-digit dialing.
- November 28, 2022: Introduction of overlay area code 350.
Conclusion
Area code 209 is a vital telecommunications region in California, serving a diverse array of cities and communities. Over the years, it has adapted to growth and regulatory changes, including the recent introduction of the overlay area code 350 to address number exhaustion.