I've been wondering, how hard would it be to set up a system like Apple's "hide my email" but for phone numbers, generating a new random phone number whenever I need to give it out?
Super easy and a bunch of apps do it, the problem here is that the numbers actually have a leasing cost if you want to hang on to them vs something like an email alias/front.
One possible way around this is to use phone number extensions, although I haven’t researched how well supported this might be across apps and the web.