“Preliminary results from the January–June2015 National Health Interview Survey (NHIS) indicate that the number of American homes with only wireless telephones continues to grow. Nearly one – half of American homes (47.4 %) had only wireless telephones (also known as cellular telephones, cell phones, or mobile phones) during the first half of 2015 — an increase of 3.4 percentage points since the first half of 2014. More than two – thirds of all adults aged 25-34 and of adults renting their homes were living in wireless-only households.This report presents the most up-to-date estimates available from the federal government concerning the size and characteristics of this population.”