caller did not identify himself told me that booking company was not accepting the agreement with the airline i then heard laughing and stupid jokes, so I hung up, called back this goes directly to a tape saying that this number is not accepting calls at this time.

Something to do with the airline service CheapOair. I tried to book a flight through CheapOair, and it didn't go through because apparently someone got the seat before I was finished booking. About 5 seconds later, this number called me 4 times. I don't answer calls from unidentified numbers, and this is part of the reason why.

I have been receiving calls from this number late at night (12 am) without the caller leaving any message.

I tried to book air line tickets through a booking website.  right after this number kept calling till I finally answered and then they immediately hung up.  

This number keeps calling me they leave a message that I own then money ,well I call back and a answering machine answer to leave a name of the person your trying call or press 0 to speak to and operator ,well the operator is not available so I leave them a message to go and f***k them self  so I block that stupid # I think is some who tap there data base and is calling people to see if they can collect money so be careful of this stupid number (cheap o air)