An access provider is a company or organization that provides access to a service or network. The three crossword solutions for the term 'access provider' are PASSKEY (7 letters), LOGINNAME (9 letters), and OPENSESAME (10 letters). Passkey is a type of authentication that requires a user to enter a secret code in order to gain access to a system. Loginname is a unique identifier used to identify a user on a computer system. OpenSesame is a phrase used to describe a situation where a person is granted access to a secure area after providing a password or other form of authentication.