lockbox short code in owner portal or team mate task app

Seeing as guest phone numbers are no longer visible to owners via the owner portal can we implement a way in which Owners can access the last 4 guest phone number digits through the owner portal or via the task app and add them as a team mate to view this? This would save them having to find the original reservation email displaying the shortcode and from having to receive new emails just to remind of the lockbox code prior to the stay