Well, I implemented the CT9 CTY.DAT file and created a problem with Canadian zones. If you use the U C command in post and plug in a VE7 call, you find he is in zone 5! The problem is the CTY.DAT file doesn't specify what zone a VE7 should be in. I saw the long list of prefixes there and assumed they were all covered. Here is the Canadian list from CTY.DAT: