CenturyLink in Whittemore, MI
These numbers are located in the city of Whittemore part of Iosco county. There are a few other subcodes that cover this area as well so take care not to confuse them.
Iosco county is situated in Michigan and operates ET (UTC -05:00) time. This number group covers the 48770, 48748, 48739, & 48749 zip codes.