In assessing the feasibility of including cell phone numbers in telephone survey sampling frames, researchers could examine more closely the characteristics of the telephone owning population. Comparisons could be made between those who own only cell phones and those who still have landline telephones. If the two groups indeed differ demographically, then the portion of the population owning only cell phones are not being well represented in the current RDD telephone surveys. If the two groups proved to differ demographically, then the cell phone only population should be targeted in future telephone surveys. In other words, if the two groups differ, then including cell phone numbers in survey sampling frames may be a worthwhile endeavor. This paper explores the theory that the cell phone only population differs demographically from the rest of the telephone owning population. The hypotheses that level of income and age are related to cell phone status (cell phone only ownership vs. landline telephone ownership) are tested using data from the 2004 JPSM Survey Practicum survey. The survey was conducted using two separate samples; a cell phone number sample and a landline telephone number sample. For analyses in this study, a combined sample was used, which consisted of a total of n =1,324 completed interviews. Results from analyses of this data show that income and age are both significantly related to cell phone status.