Many times you can find a real number for them here on these boards. Sombody catches them somewhere about 99% of the time. Looks like nobody's got them yet on this number. But if you keep checking back, you'll eventually find a real number for them and usually an address and name.
It's some type of telemarketing firm. I got a recording today about health insurance with no way to be removed from their list. When I call it back another recording tells me that the number cannot be completed as dialed so it's being spoofed. I've been getting ALOT of calls like this and other types in which they try to scam you for your "payment" information for a bill they claim we owe but we don't. I spend more time answering these calls than answering legitimate calls.