I am getting calls from someone asking about a cake with very short lead time. They leave a call back number that is 1-866-*******. I mean, who calls from an 866 number for a cake. I am suspicious but also curious (I know it killed the cat )

Does anyone else get these calls? Would you investigate or ignore?

I haven't gotten a call like that, but when I worked in Corporate America and if I made calls from work, I might leave my toll-free number for the person to call me back at work.