Pick 865 if the number should read as Knoxville.
The numbering administrator’s list of the communities in 865 starts with Knoxville.
The area code for Knoxville is 865.
865 is the one code of Knoxville. It was split from 423 on November 1, 1999, and it covers the central portion of the old 423 area.
The numbering administrator’s list of the communities in 865 starts with Knoxville.
Sevierville, Lenoir City, Jefferson City and Gatlinburg are on the same list.
The southwestern and northeastern portions of the old area kept 423.
From October 2025 to September 2026, 220 unwanted-call complaints filed with the FCC gave a caller ID number that started with 865.
Knoxville codes
How many complaints named a caller ID that starts with the Knoxville code.
Source: Federal Communications Commission, CGB - Consumer Complaints Data (dataset 3xyp-aqkj), issue "Unwanted Calls", read on November 4, 2026. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
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No. Chattanooga is in 423. Knoxville has used 865 since 1999.
Local calls inside 865 were dialed with seven digits until ten digits became mandatory on October 24, 2021.
A local call in Knoxville is dialed with ten digits. The area code is part of every number you give out.
From October 2025 to September 2026, people filed 220 FCC complaints about unwanted calls from numbers that start with a Knoxville code: 865 (220). A complaint is one person's report. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
Yes. You type the area code you want when you create a number, and you do not need to live in Knoxville. Calls ring the phone you already have, and texts land in your ExpressNumber inbox.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
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Codes around Knoxville
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The codes, the places and the years are rows of the North American Numbering Plan Administrator's area code database, and the complaints are the FCC's own.
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