North American (USA, Canada, etc.) area code +1 806 is the Texas panhandle area, including Lubbock and Amarillo.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Part of Texas
Canyon, Texas, is in area code 806, the same as Amarillo.
Part of Texas
The phone number of the Swisher County Museum is: 806-995-2819.
The phone number of the Cochran County Museum is: 806-266-0638.
The phone number of the Castro County Museum is: 806-647-2611.
The phone number of the Armstrong County Museum is: 806-226-2187.
The phone number of the Collingsworth County Museum is: 806-447-5327.
The phone number of the Sherman County Depot Museum is: 806-396-2582.
The phone number of the Hutchinson County Historical Museum is: 806-273-0130.
The phone number of the Collingsworth County Historical Museum is: 806-447-2297.
The phone number of the Floyd County Historical Museum is: 806-983-2415.