When they called my phone said it was a + (international number) from the Netherlands. But the voicemail said it's (312) 971-1973 and unknown. I thought that is interesting. Anyway, they always leave the same message much like what Waxhaw resident said. I'm not sure they always call from the same number though.
Cash Advance USA robocaller... "Hi, this call is from cash Advance Usa. You have been approved for a loan up to $15,000 no upfront fees. No security deposit or processing charges so call us back on our direct line number 312 971 1973 let me repeat it for you 312 971 1973. Thank you, and have a great day."