Frequently Asked Questions
Area code 940 covers a wide area of north-central Texas, including cities like Denton, Wichita Falls, Sanger, Krum, Pilot Point, Justin, Aubrey, Burkburnett, and Iowa Park. It also extends into numerous counties such as Cooke, Palo Pinto, Wise, Young, Parker, and more. Developers should be aware of this broad coverage for location-based applications.
10-digit dialing became mandatory for area code 940 on October 24, 2021. This change was implemented to accommodate the 988 Suicide & Crisis Lifeline. Both standard and permissive dialing now require the 1+10D format (1 + area code + 7-digit number) for all calls, including local ones.
After October 24, 2021, all calls within area code 940 require 10-digit dialing, including the area code. Dial 1 + 940 + the 7-digit number. Failing to include the area code will result in a failed call, so developers must ensure their applications use this format.
The approximate center of area code 940 is located at Latitude: 33.21484 and Longitude: -97.13307. While these coordinates provide a central reference point, remember the 940 area covers a wide region, important for developers of location-aware apps.
Area code 940 requires 10-digit dialing due to the implementation of the 988 Suicide & Crisis Lifeline. This nationwide change required all areas that use 988 as a local prefix to adopt 10-digit dialing. This ensures calls to 988 reach the lifeline while allowing existing 988 prefixes in 940 to remain functional.
Area code 940 covers north-central Texas, including diverse areas from urban centers to rural communities. This area holds economic significance with major industries such as education, agriculture, and manufacturing, relevant information for developers targeting users within this area.
Area code 940 was split from area code 817 on July 7, 1997. The split became necessary due to the increasing demand for phone numbers driven by growth in the north-central Texas region and the rise of cell phones, fax machines, and internet connections.
The North American Numbering Plan Administration (NANPA) manages area code 940. NANPA allocates area codes, assigns prefixes to telecom providers, and oversees the numbering plan. Developers should consult NANPA for updates and regulations, such as number pooling guidelines.
Validate area code 940 numbers using regular expressions or specialized libraries. Ensure the input adheres to the 1+10D format, which includes 1, the area code, and the 7-digit number. This prevents invalid input and ensures your application connects calls correctly.
NANPA, the North American Numbering Plan Administration, oversees area code 940 and its regulations. Understanding NANPA guidelines, such as number pooling or dialing pattern changes, is crucial for developers building telephony applications to maintain compliance and functionality within the 940 area code.
Area code 940 covers several counties in Texas, notably including Denton County and Wichita County. However, the 940 area code extends into numerous other counties such as Cooke, Palo Pinto, Wise, Young, and Parker, among others, representing a diverse geographic region.
Developers should consider the history of area code 940, particularly its split from 817 in 1997 due to increased demand, to understand the dynamic nature of telecommunications. This historical context informs the need for efficient number management and designing adaptable applications that can accommodate future changes in the numbering plan.
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Area Code 940: Coverage, Cities, and More
Area code 940 is a vital part of the North American Numbering Plan (NANP), serving north-central Texas. This guide provides a deep dive into 940's coverage area, key cities, regulatory details, and practical implications for developers building applications that interact with telephony systems. You'll gain a thorough understanding of this area code and its significance in the telecommunications landscape.
Geographic Coverage: Where Exactly is Area Code 940?
Area code 940 covers a diverse swathe of north-central Texas, encompassing urban centers, suburban communities, and rural areas. This region is not only geographically diverse but also economically significant, with key industries including education, agriculture, and manufacturing. Understanding this context is crucial for developers, as it informs the types of users and applications that might utilize phone numbers within this area code.
Key Cities and Counties: More Than Just Denton
While Denton is often the first city associated with area code 940, the area encompasses a much broader range of locations. You'll find that knowing these locations can be helpful when developing location-aware applications or targeting specific demographics. Here are some of the most prominent cities and counties within area code 940:
Latitude and Longitude: Pinpointing the 940 Area
While general geographic descriptions are helpful, precise coordinates are often necessary for developers working with mapping or location-based services. The approximate center of the 940 area code can be identified by the following coordinates:
These coordinates provide a central reference point, but remember that the 940 area code covers a wide expanse, so you'll need to account for this range when developing location-aware applications.
Regulatory and Dialing Information: Essential for Developers
Understanding the dialing patterns and regulatory framework of area code 940 is essential for developers building telephony applications. Correct dialing procedures ensure that your application connects calls accurately and efficiently.
Dialing Patterns: 10-Digit Dialing Mandatory
As of October 24, 2021, 10-digit dialing became mandatory for all calls within area code 940. This change, implemented to accommodate the nationwide 988 Suicide & Crisis Lifeline, requires callers to dial both the area code and the 7-digit phone number, even for local calls. This is a critical detail for developers to incorporate into their applications. Failing to implement 10-digit dialing will result in failed calls. You should always design your applications to handle the most current dialing patterns.
Regulatory Framework: The Role of NANPA
The North American Numbering Plan Administration (NANPA) plays a crucial role in managing area codes and numbering resources. NANPA allocates area codes, assigns prefixes to telecommunication providers, and oversees the overall numbering plan. Developers should be aware of NANPA's role and consult their resources for the latest information on numbering plan updates and regulations. This information is vital for maintaining compliance and ensuring the proper functioning of your applications. For example, NANPA's guidelines on number pooling, where numbers are assigned in smaller blocks than the traditional 10,000, can impact how you acquire and manage phone numbers for your applications. This is particularly relevant if your application requires a large volume of numbers.
History and Evolution: From 817 to 940
Area code 940 was created on July 7, 1997, as a split from the existing 817 area code. This split was necessary due to the increasing demand for phone numbers in the rapidly growing north-central Texas region. The proliferation of cell phones, fax machines, and internet connections contributed to this demand. Understanding this historical context helps developers appreciate the dynamic nature of the telecommunications landscape and the ongoing need for efficient number management. As the demand for phone numbers continues to evolve, developers should anticipate future changes and design their applications with flexibility and adaptability in mind.
Practical Implications for Developers: Building Robust Applications
When developing applications that interact with the telephone network, consider these best practices:
Conclusion: A Developer's Perspective on Area Code 940
This guide has provided you with a comprehensive overview of area code 940, going beyond basic information to explore its geographic, regulatory, and historical context. By understanding these aspects, you can develop more robust and effective telephony applications that serve the needs of users in north-central Texas. Remember to always validate user input, handle dialing variations, and stay updated on the latest regulations to ensure your applications remain compliant and functional.