Software Bug Behind Biggest Telephony Outage in US History

  • 1 April 2018
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March 31st  2018, By Catalin Cimpanu

A software bug in a telecom provider's phone number blacklisting system caused the largest telephony outage in US history, according to a report released by the US Federal Communications Commission (FCC) at the start of the month.
The telco is Level 3, now part of CenturyLink, and the outage took place on October 4, 2016.
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