''Me'', you've been reporting this number for ten weeks. If your name is on a debt account, FNCB owed you a dunning letter nine weeks ago. Otherwise this is skip tracing for someone else. If you don't answer or return a call at least once you may never find out what they want.
Merely answering a collections call does *not* reset SoL. It's what you say that counts. You can decline to answer questions and turn information flow in your direction.
Gang, the full name is First National Collections Bureau. If you are receiving repeated, misdirected, and/or abusive calls from a third party debt collector, you may find relief in the provisions of the FDCPA, the federal law which regulates collector behavior and provides you simple tools for your own defense. It grants you control of how you are contacted, the right to dispute debt claims, and the means to sue at low cost. Learn your rights and first response tactics at FTC-dot-gov. See also your state laws for additional support.