I also have a similar experience to the OP. However, I do not get 10 calls a day. It's generally 1-3 during most weekdays but not all. I use to not travel much

I also have a similar experience to the OP. However, I do not get 10 calls a day. It's generally 1-3 during most weekdays but not all. I use to not travel much, and any traveling I did was pretty basic flight + hotel. No fancy vacations or anything. A bit over a year ago I booked a trip to a resort in Cancun through a travel agency in Florida. None stop spam since. I noticed a massive increase the amount of email spam I got and started to received a large number of phone calls. I can't say for certain that was the cause as it seems spam phone calls have been heavily increasing over the last few years, but it's the only thing I can point to as an out of the ordinary change.