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A lot of them also block voip numbers. This is obviously just a way to collect cell numbers that are easy to send spam SMS messages to.
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I agree with this. They should have to keep some insane bond for every phone number they keep to pay out when there is a data leak.
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Yeah, phone numbers are essentially KYC. I use a phone number verification site, but I can't recommend them because they stopped accepting Monero recently.

For long term numbers I would use jmp.chat.

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Google knows all about virtual phone numbers and won't accept them. If you don't have a number issued by a large telco, forget about creating a Google account.
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JMP is a real carrier number so it should work better for 2fa than VoIP numbers.

I haven't used it yet, but I'm switching to it once my current plan runs out. There's plenty of options for data.

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It's super annoying, because it's normally also a path for account recovery. So if you need to change your number, good luck remembering where you have signed up with it.
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