I run a site [1] which is doing this, only more permanent. I am not nearly brave or rich enough to run a 10minutemail but for phone numbers.
The only issue is a lot of sites treat all VoIP numbers as second-class citizens and disallow them silently. You will be allowed to add the numbers, but the services will silently refuse to call or text them, locking you out of your account.
Let me know if anyone is interested in trying it out. I am relaunching PhonePrivacy after this weekend so lots of upgrades to come. :)
The only issue is a lot of sites treat all VoIP numbers as second-class citizens and disallow them silently. You will be allowed to add the numbers, but the services will silently refuse to call or text them, locking you out of your account.
Let me know if anyone is interested in trying it out. I am relaunching PhonePrivacy after this weekend so lots of upgrades to come. :)
[1]: https://phoneprivacy.co