Area Code 806
Local Presence for Amarillo, Lubbock, and Plainview
You can increase your connection rate up to 30% by dialing from a local number.
Local Presence by Tenfold gives you one-click access from your existing phone system to a local number in the US area code 806 and more than 200 others.
Reach out to customers in Amarillo, Lubbock, and Plainview.
Source: Wikipedia