A system for transmission of mode of access information between a first device operated by a first user and a second device operated by a second user includes a database that is in network communication with the first device and the second device. The database stores a plurality of different modes of access for contacting the first user that are devoid of alpha-numeric identifiers specific to the first user. The database allows the first user to select one of the modes of access as a current mode of access of the first user. The current mode of access of the first user can be communicated to the second device once the second device queries the database. The current mode of access of the first user can be selected from the group consisting of mobile phone, text message and electronic mail. The current mode of access of the first user can change automatically over time according to a schedule input into the database by the first user. In some embodiments, at least one of the first device and the second device is a web-based mobile phone.