AT&T upgrades network on 129 Michigan sites
DETROIT — AT&T Inc. announced it had upgraded its wireless network within eight counties in Michigan. The improvements include adding greater capacity or bandwidth and speeds to 129 cell towers …
AT&T Boosts 4G In Great Lakes Bay, West Michigan
DETROIT — AT&T Inc. said it is expanding its fast 4G LTE data network into areas around the Great Lakes Bay region and West Michigan.