[Dxbase] other call/prefixes in DXbase

Sun Sep 28 22:11:15 EDT 2008

In preparation for an eventual upload to LoTW, I am changing all the
operator calls in my log to reflect the callsign used at the time of the
QSO. Today, I discovered one prefix that gets turfed and I suspect, as I go
along, I will find others that were not properly registered.
I have used all of the Canadian prefixes such as CF1/3, CG1/3, etc. and
since these were registered, I can change them. But it seems I overlooked
XL. 
How do I check to see which prefixes I registered and once I see that how do
I add the missing prefixes?
In other words, I have used VC3FRA, XJ1AL, XL1AL, XM3FRA, XN3FRA, etc. I
need every possible Canadian prefix available for my log, having used each
of them at one time or another over the last 40 years that I have entered
into my database.
Can anyone help?
73
Al, VE1AL