Isn't this phone verification for all new accounts anyway these days? Regardless of your ip/tor/vpn? For sure it is when you want to get an api key - boohoo.
Easy to bypass tho. I just use a call forwarding service, that lets me have a DID number in any country, and FW the calls to SIP. This fails with SMS, but works with voice call verifications (which are usually an option).
Costs a few bucks per number.
I use https://didlogic.com/, but they don't accept bitcoin. Some others do. You'll have to test a few, since sometimes the numbers are re-used and thus banned in the top few services (like Google).