This week, the FCC released its 15th annual wireless communication report. The commission's report contains a number of metrics about the mobile voice and data industry, including mobile penetration across various age groups.
The report shows that just over 51 percent of adults from 25 to 29 only use mobile phones in their households. This marks the first time that wireless-only households have exceeded landline households for any age group by the FCC's count.
In the age groups immediately younger and older than this demographic (the 18-24 year-olds and 30-34 year-olds) roughly 40 percent lived in wireless-only households.
Across the U.S., of the 308 million people living in this country, at the end of 2009 274 million used a mobile phone. Of those, over 55 million had some type of mobile data plan for that phone.