Is there a free/cheap phone forwarding service? Like SimpleLogin, but with phone numbers

SimpleLogin allows Proton subscribers to use aliases instead of giving away their real email. So instead of announcing to the world that my email is `CharlesAmpersand@Mail.com`, I can sign up for websites using `qafqotgj123451@simplelogin.com`. Many websites require a phone number to sign up. Is there a service allowing me to make additional numbers that forward to my main? Most sites block Google Voice numbers.

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