VerifyPhone.com is your one-stop site for area code lookup, phone number lookup,
and free phone number reviews. Following is phone number listings & most
recent reviews for 423-721 area code for verified numbers 423-721-0000 - 423-721-0999. Zipcodes covered include 37821, 37822, 37843, 37890 covered within Knoxville. More area codes, including
those outside of Tennessee, United States of America, are on the VerifyPhone.com homepage.
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423-721-0xxx Area Code Reverse Lookup Results
Phone numbers 423-721-0xxx fall in 423-721 area code. This area code covers part of Knoxville, covering
most of 37821, 37822, 37843, 37890 zipcodes. 423-721 area code was
started on Dec 29, 2008. Knoxville follows US/Eastern timezone with Daylight Savings as part of Cocke county in Tennessee state. It has a population of 35,662 and covers a Land Area of 434.565 sq miles. 423-721 area code
locator service has determined Geo-Coordinates for this location as Latitude: 35.97 & Longitude: -83.19. Also, the network service provider for area code 423-721 is United States Cellular - TN, 8410 W Bryn Mawr Ave, Suite 700, Chicago, IL, US - 60631-3408.
