Can I "unspoof" phone numbers? If so, how?

I have been getting several calls from scammers, but the number that comes up on the caller ID is not their real number. It is spoofed. Is there anyway to reveal the true number so I can either not answer, trace or report the number? I can't change my number due to the large number of business and doctors that I deal with.

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Northwest · M

I don't answer calls from numbers I don't recognize or in my contacts list. Block them, they may use another number, but they don't have an infinite set of numbers. Google the number, it will tell you if it's a scam, or a "legitimate" robocall. If the latter, then your google search will probably return a web site you can go to block all calls from that source.