According to the information available, individuals must be at least eighteen years old to sign up for StandUp Wireless services in their own name. This age requirement is standard for many mobile service providers as it ensures that customers have the legal capacity to enter into a contract. However, there may be options for minors who wish to have a mobile service plan, typically requiring a parent or legal guardian to co-sign or take responsibility for the account. It is also essential to check the specific terms and conditions associated with the service. For the most accurate and up-to-date information regarding age requirements and other details, it may be beneficial to look on the current StandUp Wireless website.