I didn't answer, but they left no voicemail. I called the number and got a recording (British dude) that indicated that "this is a travel-related call" and that "for more information, [they] will call back shortly." I was given the option to be "removed from their database" by pressing 1. I'm sure that's how they confirm numbers (when you call to see what lame-[***] didn't leave a message).
I got a call from this number about an hour ago. I dismissed the call and it called right back.thought it may have been someone calling for an emergency so I sent a text, but