Data source: National do not call registry data book FY2015
0
100000
200000
300000
400000
500000
600000
2013 2014 2015
Phone
Data source: Consumer sentinel data book CY2015
Subscribers (mil)
Mobile Landline VoIPData source: CTIA 2013, ITU 2013, Statistica 2013
Data source: Bandwidth Voice & Messaging API Platform
•
•
•
•
•
•
•
•
•
•
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