On that credit card number; as long as you have used the same bank the first 4 numbers will be the same, As far as I know, each issuing bank has their own unique 4 digits.
I've noticed that the last 4 numbers on my CCs have remained, in fact that only the 3rd set of 4 numbers change.
Your card might be the same way....can't hurt to try
-Appel
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