I get calls from this number about 4 times a day, every other day, at all hours of the day. I think the latest I've gotten a call from these guys is about 12am.
When I call them back I get an invalid phone number message. Haven't answered it yet, but I am on a do not call list.
Guess I'm going to have to let them have it.

From the Do Not Call Site:
A company that is a seller or telemarketer could be liable for placing any telemarketing calls (even to numbers NOT on the registry) unless the seller has accessed the registry and paid the fee, if required. Violators may be subject to fines of up to $16,000 per violation. Each call may be considered a separate violation.

REPORT THEM and be sure to detail the number of calls you receive (so far 11 for me = up to $176,000 fine)!

https://complaints.donotcall.gov/complaint/complaintcheck.aspx?panel=2

This is a timeshare scam, they go by name of CK International, with address of 24 Trensen Rd, #623, Pittsburgh, PA.  If you google earth this address, you will probably find that it is a UPS mailbox, they want $1750 upfront money and it is against the law to ask for money upfront.  If more people would start asking these telemarketers about timeshare questions about their addresses, phone numbers, name of company, then check it out for themself, and have these people call them back the next day,  threaten them by reporting these thieves to the Attorney General's office in the state they are working out of and try to shut them down.  You would be doing a fellow American a favor.  I was scammed once, and took matters into my own hands by filing a Fraud report at my local police state, and now the state of Georgia is working with Florida Sheriff department and secret service and Attorney General's office..........watch your back everyone.....if it sounds to good to be true, it's not true.....there is no buyer for your timeshare...........and they are foreigners on top of that............

Unwanted call

spoke to someone form this number calling himself Roger.  Said he was interested in our timeshare I asked the name of his company he replied Travel Survayor I told him it had been requested they stop calling and asked for an address to write them .  He asked "then ou do not have a time share?"  I responded "that is not my point to which he answered "Shut Up you [***]" .  I tried calling the number back you get a recording and put on hold endlessly.