<a href="https://en.wikipedia.org/wiki/Ameritech" class="extiw" title="en:Ameritech">Ameritech</a> logo from 1984 to 1993.
<a href="https://en.wikipedia.org/wiki/Ameritech" class="extiw" title="en:Ameritech">Ameritech</a>
<a rel="nofollow" class="external free" href="http://www.ameritech.net/">http://www.ameritech.net/</a>