815-301-4060

Appears to be a Kirby distributor out of Crystal Lake
Also see:

https://800notes.com/Phone.aspx/1-815-301-4073
https://800notes.com/Phone.aspx/1-815-301-4075
https://800notes.com/Phone.aspx/1-815-301-4080
https://800notes.com/Phone.aspx/1-815-301-4100
https://800notes.com/Phone.aspx/1-815-301-4103
https://800notes.com/Phone.aspx/1-815-301-4113

Also see:

https://800notes.com/Phone.aspx/1-815-301-4102

This phone number is also Kirby.

I have been receiving calls from this number daily, or other numbers similar... I never pick it up and idk who it is because they don't leave voicemails. I won't call them back either. Don't want to risk it. Reading the precious comments above, what is Kirby?

It's probably   someone selling Kirby Vacuum Cleaners.   They were  pretty good vacuum cleaners-- we had one when I was a kid back in the 1950s.  They are  heavy-duty machines.  There's been some complaints about the current quality.    I think they are only sold door-to-door.  The sales portion isn't the best.  They start at around $2500 and the buyer can negotiate with the salesperson.  Apparently the shampoo function doesn't work too well, but it sucks the dirt up pretty well.  Their sales people aren't the best.  And if you're elderly like me and the mrs, they are a bit too heavy for ordinary use.  I'd be carefull.  You can probably get better deals on Amazon.