Of course, the real solution is to remove the leverage Google has on you so that a ban is no longer a problem.
And I hope they will never ever again ask me to confirm anything using that number.
For example, https://cheapglobalsms.com/
I went a slightly different route --- an old spare phone with Ultra Mobile PayGo prepaid SIM. For $3 per month you get 100 minutes of voice, 100 texts and 100 MB data per month.
The reason for this is that some security providers throw a little kink in the works by actually making a call to verify your number on sign-up.
Lookup APIs are available to identify line type and most will specifically reject voip numbers. The more obstinate providers I have encountered (some banks for example) will actually have a real human place a call to any number provided at sign up and reject it if they can't verbally talk to you.
Or, you know, stop fucking using google.