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Thread: Hidden information that lurks in your amex card number
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Old Apr 22, 2010 | 9:58 am
  #49  
S.Bling
 
Join Date: Oct 2007
Programs: Plat:US,DL (ex KL,AF,LX,LY) Gold:BA,VS (ex CO,UA).Plat.SPG,HGP Diam.HH. ICHG Plat RA. Amex Centurion
Posts: 673
Originally Posted by mia
The card number cannot designate the color of a USA-issued charge card because the number may remain the same when you change between Green, Gold, Platinum. Not sure about Centurion.
+1

I have had the same prefixes on cards simply for reasons Mia mentioned. When you upgrade or downgrade the card, you are not given an entirely new number (sometimes the whole number stays exactly the same).
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