No doubt.
- If you’ve ever given it to a business as your contact number.
- If you’ve used it on applications for services or housing.
- If you’ve shared it with friends and family (who then uploaded all their contacts to Facebook or Google).
- If you’ve provided it when registering to vote.
In the U.S., and probably other countries, your detailed data (name, birth date, address history, phone numbers, income) get aggregated into your credit file, which you have very little control over. It also ends up in countless “data broker” databases, and is probably available for searching on hundreds of websites for free to anyone.
Once you get a new number from Purism, it will not be publicly attached to your name (although the information you supply to Purism will, by law, be available to law enforcement agencies that present a valid legal request for information).
But if you then start providing this number to people, businesses, and voting registrars as before, it will again be associated to your name and end up in public records. If you want to prevent that, I suggest you obtain one or more free or cheap VOIP numbers in addition to your Purism number, and use the VOIP number(s) in your business dealings and even some personal relationships. You can add the VOIP number(s) to the L5’s SIP dialer and use them as “burner” numbers. Or check out jmp.chat. But you’ll still get added to databases everywhere, unless you can somehow use a fictitious name for some things.
Some related info here.