Are there any ways to avoid handing over your real phone number, besides having an extra SIM? Lots of places/services want SMS verification, but i rarely want to hand out my actual phone number.
I’ve recently been looking into mysudo. For $1 a month you can get 1 number as well as some extra stuff if you care about that.
You can use it without Google services if running GrapheneOS but it takes a second normal phone and a throwaway Google account to work. Incoming notifications don’t work but if used as a spam number that’s probably a good thing lol. (https://support.mysudo.com/hc/en-us/community/posts/4414403558555-When-will-MySudo-be-supported-on-GrapheneOS-?page=1#community_comment_4414489480859)
Haven’t pulled the trigger on it but seems like something I will probably set up at some point
If it’s for a one-time sign up and you don’t need it for anything else afterwards, then try smspool.net . They’re pretty cheap. For example US numbers for Google signups are like 40 cents. They’ve worked pretty well for me too.
Firefox Relay has phone masks. I don’t know if they actually work though. I never had a need to try them.
What everyone said already works great.
More options, where you can get a sms for one off use (or longer) for a few cents, pay with Monero.
https://kycnot.me/search?q=sms&type=
jmp, smspool, juicysms, crypton, etc, etc all give you a sms endpoint to use.
2nd line, you get a free number to use