AT&T Outage Takes Down Other Carriers [telecom]

An AT&T problem allegedly caused outage on Verizon, Sprint, and T-Mobile
A "dirty little secret," carriers often have just one backhaul provider
by Jon Brodkin
The four major wireless carriers in the US had an outage lasting about
five hours in several states last night, and a report from Re/code
says it was all caused by a hardware problem in AT&T's network.
Although AT&T, Verizon Wireless, T-Mobile US, and Sprint each operate
their own cell towers, in the states where the outage occurred they
apparently all acquire backhaul from AT&T's network. Re/code reported
that "several telecommunications industry sources" confirmed that
AT&T's network caused the outage for all four carriers in parts of
Tennessee, Alabama, Kentucky and Indiana. (Another report said Georgia
was affected as well.)
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Bill Horne
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