The disclosed subject matter relates to an architecture that can facilitate and/or transmit notifications based upon device presence techniques in connection with a wireless communications network. For example, when certain mobile devices register with a particular network entity (e.g., a femtocell) that services a particular target location (e.g., place of residence), then such registration can be leveraged to indicate presence at the target location. Accordingly, notifications can be delivered to custodian devices that indicate the presence information if certain predetermined conditions or criteria are satisfied.