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With companies still requiring phone numbers, Google Fi might be a good option if you have a US address. You keep the same number as you travel worldwide and there are no international roaming charges.

Edit: There are no international data and texting roaming charges. Cell based calls can be about $.20 per minute, but wifi calling is free.

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Google voice is a better option, costs wise. You can port numbers in.

I use and like Google Voice, but I do find that some sites won't accept a google voice number for text messages. usually for 2factor. I would like to know what the difference is?

From my understanding Google Voice is still managed more like hacking SMS capabilities onto a "landline" number than being a true mobile operator.

I've also started experiencing issues with a certain bank no longer accepting it for SMS. Luckily they offered an RSA fob.

I get a minor anxiety spike every time I log into an infrequently used services with SMS based 2fa.

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