[ConcernedCitizen]

Used to be able to get a GVOICE and just cycle the numbers via VOIP spoofing. Well, to be clear, it's possible but it's very difficult now. You need to have a landline that isn't traceable or at the very minimum ARP spoof, a secure self-compiled router firmware with hardware not controlled by your ISP. That alone is hard to get nowadays without stealing one or buying from some shady black market dealer. I have some modems and extra hardware that fell off a truck from the local telecom but I can't even sell it without it being traced back to me because as soon as the hardware boots it is traceable by GPS and they have individual IDs that are traceable to the driver they were assigned to and they can subpoena all the records for that driver's area. In other words, if you VOIP spoof even on a stolen modem/router combo it's very easy to track down who is using them.