Anyone else get/know why random callers are on my One Number?

I get random caller notifications on my One Number. Got one last week from Land O Lakes, FL. It’s never happened when I can call in to find out why they’re on there. Anyone else get these or know why? It’s always one caller. Thanks.

Hello
Your One number is a regular US number. This caller might have connected to your line by mistake. Was it a one time thing or does it happen regularly?