This report updates subnational estimates of the percentage of adults and children living in households without a landline telephone but with at least one wireless telephone (i.e.,wireless-only households). State-level estimates for 2011 are presented, as well as estimates for selected U.
S. counties and groups of counties, and for other household telephone service spend categories (e.g.,those that had only landlines and those that had landlines yet received all or almost all calls on wireless telephones), and for two earlier 12-month periods (January- December 2010 and July 2010-June 2011).
Source: cdc.gov