Yes, ItsJustANumber does have a messaging system for users to communicate. The messaging system is secure and user friendly. It allows you to send private messages without revealing your identity or location. You can also save conversations for later review and there are no restrictions on the length of the message. You can view user profiles before sending messages, so you know who you're talking to before initiating a conversation. All in all, ItsJustANumber provides an efficient way for users to connect with potential matches while keeping their identities private.