In this study we analyzed the interaction between active seniors and mobile phone use. Results were obtained from a survey. Participants were 165 active seniors enrolled in university programs for seniors, most of whom owned a mobile phone and used it for basic functions such as making calls, creating a contact list, checking the time, and sending text messages. The mobile phone did not have a social expansion function (that is, to extend their social networks) for these people; but it did provide them with social support by allowing them to keep in touch with their relatives. It also made them feel secure, free, and independent.Two of the major challenges in today's society are the information and communication technology revolution and the demographic shift caused by an aging population.Information and communications technology (ICT) exerts great influence; it has modified the way we relate to one another by easing communication and interaction, as well as giving people access to resources anywhere, anytime. Mobile phones have a key role in ICT (Ezoe et al., 2009;Nieto Tamargo, 2008) and through their use interaction over distance has been eased, thus facilitating communication with public and private institutions, and also performing the same functions as, and therefore replacing, other devices (e.g., taking photographs, sending text messages, listening to music, accessing the Internet). Mobile phones are so versatile that they have gained a general presence in SOCIAL