Local Phone Numbers
Tennessee
865 Area Code
865 Area Code
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The 865 area code serves Knoxville and much of eastern Tennessee, covering communities in and around the Great Smoky Mountains. With cities like Knoxville, Oak Ridge, and Maryville in its footprint, the 865 code is tied to a diverse economy that includes education, healthcare, research, and tourism. A local 865 number helps your business become instantly recognizable and trusted across the region.
With DialLink, startups and SMBs can quickly secure an 865 area code number and manage calls, texts, and voicemails from one platform. AI-powered features help your team respond faster and work more efficiently.
Area code 865 is strongly associated with Knoxville, home to the University of Tennessee and a hub for healthcare and research. The code also covers nearby communities and tourist destinations across eastern Tennessee, giving businesses an edge when building trust in the region.
Whether you’re targeting students, professionals, or local residents, an 865 area code number makes your business feel close to home.
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The 865 area code is assigned to eastern Tennessee, primarily serving Knoxville and nearby cities.
The 865 area code serves Knoxville, Oak Ridge, Maryville, and surrounding communities in eastern Tennessee.
The United States does not have one single area code. Instead, it uses the country code +1, followed by regional area codes.
Each area code can support up to approximately 7.9 million unique phone numbers, depending on allocation and demand.
Area codes are part of the North American Numbering Plan (NANP). They divide states into geographic regions, ensuring calls are routed properly.
Area codes were introduced to organize regions as phone usage expanded, making it possible to route calls correctly and avoid overlaps.