Person text messaging on phone
AP file
data

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Person looking at smartphone
AP file
wireless carrier

AT&T must refund overcharged mobile customers

Man on cellphone
Getty Images
privacy

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iPhone 5 on Verizon Wireless website
Verizon Wireless
iPhone

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Cellphones, wireless carriers
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smartphones

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iPhone
Reuters / file
cellphone

FCC tracks carriers' alerts to avoid mobile 'bill shock'

iPhone 4
Reuters / file
iPhone

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