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Old Oct 23, 2020, 6:05 pm
  #10  
garykung
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Originally Posted by oceanasteve
No indication what the format is. Any ideas?
It is a 9-digit number, which is formerly known as Alien Registration number, A# number, etc. I believe it is known as USCIS# now. This is a number following an immigrant for life, even after naturalization. CBP TECS will be able to verify the status of the Immigrant by use this set of number.

There is a second set of number, which is the serial number for the card itself. That number virtually has no value.
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