T-Mobile in Wichita, KS
These numbers are located in the city of Wichita part of Sedgwick county. There are a few other subcodes that cover this area as well so take care not to confuse them.
Sedgwick county is situated in Kansas and operates CT (UTC -06:00) time. This number group covers the 67202, 67232, 67230, & 67228 zip codes.