The call could be coming from anywhere in the world. I'm in Canada and I have free international calling. I could spoof any caller ID in the world. That's what scammers and crooks are doing nowadays.
Had a missed call from this number at 5.30am this morning! I am in Australia. The most recent form I filled in with my mobile was yesterday at a winery in the Bellarine region in Victoria, Australia. Has anyone been to this area lately and signed up for their wine newsletter?