Yeah, prepaid phone numbers. I assume it's also likely a US thing as well. If you drop down to the store and buy a TracPhone or Cricket Wireless product or what

Yeah, prepaid phone numbers. I assume it's also likely a US thing as well. If you drop down to the store and buy a TracPhone or Cricket Wireless product or whatever and load it up with a few pre-paid minutes, that'll fail a lot of the identity verification steps happening behind the scenes when you try to create accounts with it. Generally post-paid plans (or "contracts" as they're often called, since we love overloading words) will work for that sort of thing day one.