A server device can, in response to a mobile device request, facilitate presentation of a login page via a mobile device. The login page can prompt for access credentials to a user account associated with mobile communications services and associated with a user identity, wherein a displayed link by an in-vehicle user equipment enabled the mobile device to request the login page. Based on a receipt of the access credentials from the mobile device, the server device can facilitate displaying a prompt, via the mobile device, for entry of an activation code, wherein the activation code was displayed by the in-vehicle user equipment along with the displayed link. The server device can receive a submitted code from the mobile device, and in response to the submitted code being determined to match the activation code, pairing the in-vehicle user equipment with the user account.