It is from Vacation Tour and Travel or so the caller ID shows. If you call it back, it says it is a Verizon Wireless Number that has been disconnected but they just called 5 minutes ago from that number. They don't leave a message and they use different numbers from all area codes and call on a daily basis. My machine keeps a record of them and I have about 2 dozen over the past month. I will answer the next one and hope I can get them to stop.