Mobile phones have become the most ubiquitous information and communication technology (ICT), research has been focused on the use of mobile phones by teenagers, younger adults, and working age people—plausibly as a consequence of the fact that these user groups have represented the largest proportion of mobile phone early adopters heavily targeted by the industry noticeably less interest has been shown by scholars for other user groups and, in particular, for older adults. Substantial differences, however, are still evident in mobile phone access among older adult age groups—despite the overall increase in the last decade. For example, whereas in 2013, 90.3% of people aged 55–64 owned a mobile phone, this rate falls to 81.7% for the 65–74 age group and to 55.2% for those aged over 75 in the same year. researchers have shown interest in the predictors of the adoption of mobile devices among older adults. Accordingly, the Technology Acceptance Model (TAM) and its variations have been applied to mobile phone adoption. Drawing on the suggestion that understanding the limitations associated with the appropriation of ICTs’ specific characteristics and constraints of older adults must be considered, TAM-based models have been further extended with other variables, such as demographical, socioeconomic, and personal factors. On the other hand, the second group of studies has addressed the potential usability issues of older adults with the handling of mobile devices. For example, it has been shown that potential or progressive cognitive declines, hearing and visual impairments, and a higher susceptibility for disease render the learning of mobile phone use difficult. In terms of needs, older adults commonly identify their mobile phone as a kind of safety device, which, on one hand, fosters their independence and, on the other hand, provides inclusion with the potentially perpetual access to their social network. In fact, a consistent finding of prior research has been that older adults perceive and use the mobile phone as a personal communication device to stay in touch with family members and other persons. These members of their social network provide them with emotional support and/or social companionship, which reassures older users that they have someone to rely on when dealing with everyday life occurrences and/or emergency situations. on how different types of social support networks and their characteristics are associated with older adults’ use of mobile phones for social support exchange. It is with this limitation in mind that this study aims to theoretically and empirically examine how mobile phones are used by older adults in communication with their providers of social support and how the composition and type of support network, as well as the sociodemographic characteristics of older adults, are related to the frequency of mobile communication. In addition, drawing on previous findings that show that older adults often combine the mobile phone with landline phone communication to maintain family and social relations.