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423 Area Code

423 Area Code belongs to Tennessee and serves to 7 main cities

Area code 423 serves the northeastern region of Tennessee and parts of Virginia and North Carolina. Introduced in 1997, it was established as a split from the original 615 area code, which was one of Tennessee’s first area codes created in 1947. The geographic area encompassed by the 423 area code includes several major cities, such as Chattanooga, Johnson City, and Kingsport.

This area code covers a diverse mix of urban and rural landscapes, featuring both industrial centers and scenic mountain regions. The telecommunications infrastructure in the area supports a range of services, including landline, mobile, and broadband internet options, reflecting the growing demands of the population and businesses. The region's economy relies on various sectors, including manufacturing, healthcare, education, and tourism.

One notable characteristic of area code 423 is its ample use of 10-digit dialing, as mandated by regulatory authorities to facilitate the growing need for additional number combinations. Additionally, this area code has experienced the introduction of overlays, as seen with the implementation of 931, which allows for further expansion of numbering resources without the need for a complete geographical split.

The geographical and socioeconomic diversity of the 423 area code provides a distinct telecommunications environment that caters to both individual consumers and businesses, emphasizing the ongoing evolution of connectivity in this part of the United States.

Cities with 423 Area Code:

  • Where area code is 423?

    Area code 423 covers parts of Tennessee, including cities like Chattanooga and Johnson City. Here's what to know!

  • What is the 3 digits 423 in a phone call?

    If you receive a phone call with the first 3 digits 423 in the United States, you should know that they could belong to Bristol (TN), East Chattanooga (TN), East Ridge (TN), Johnson City (TN), Kingsport (TN), Morristown (TN), South Cleveland (TN).

  • How to call area code 423 from another state in the U.S?

    Dialing the area code 423 from another state in the United States is considered a long-distance call. Here’s how to make the call: First, dial the area code for 423. Each state, and sometimes specific cities within a state, has unique area codes. Then, enter the 7-digit phone number of the person or business you’re trying to reach. If you’re calling from a landline, check with your provider, as long-distance charges may apply. However, most mobile carriers in the U.S. offer nationwide calling without additional fees. Alternatively, you can use VoIP or internet-based calling apps, like Skype, Zoom, or WhatsApp, to bypass traditional long-distance charges. The number you want to reach should look like this: 1-(AreaCode)-111-2222.

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