AT&T Southwest in Puxico, MO
These numbers are located in the city of Puxico part of Stoddard county. There are a few other subcodes that cover this area as well so take care not to confuse them.
Stoddard county is situated in Missouri and operates CT (UTC -06:00) time. This number group covers the 63960, 63730, 63936, & 63966 zip codes.