Air traffic operator at Nottingham Airport, Dave Tower, said "aviators could become confused about who to call and what radio frequencies to use".

BBC: NEWS | UK | England | Leicestershire | Row over airport name change

At Cingular Wireless, a national mobile operator, network call traffic surged to 400 percent of its normal level from 10 a.m. to 11 a.m.

CNN: Networks hit, but telecom stays operational

As a wholesale operator to other carriers, Clearwire intends to provide backup support for overflow traffic.

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