A fire at <a href="https://en.wikipedia.org/wiki/Illinois_Bell" id="mwAUg" rel="mw:WikiLink" title="Illinois Bell">Illinois Bell</a>'s Hinsdale Central Office triggers an extended <a class="mw-redirect" href="https://en.wikipedia.org/wiki/1AESS" id="mwAUk" rel="mw:WikiLink" title="1AESS">1AESS</a> network outage once considered to be the "worst telecommunications disaster in US telephone industry history".