Why am I getting a call from me?

I'm curious to know, why exactly am I receiving a call from my own number? Is this a common occurrence in the world of technology, or could it potentially be a sign of something more sinister, like identity theft or a scam? Have there been any similar cases reported in the past? What steps should I take to ensure my personal information and finances are secure? Could this be a mistake on the part of my service provider, or is there something more complex going on here? I'd appreciate any insight you can provide.