Is my phone number also tracked for ads?

If I ditch my current phone and current emails and all online accounts, get a new phone and keep only my current phone number (SIM card), can tracking companies still connect the dots?

Clarification: Do tracking companies also get my SIM card phone number and so are able to know that I'm the same person?

FOLLOW UP QUESTION: I get that keeping the number is a weak point. Now, what if you change phone numbers also but keep the phone …

accounts ads card companies connect connect the dots current emails phone phone number privacy sim sim card tracking