USCIS Alien Registration Number

Source of Definition: USCIS

Source of Data: USCIS

Synonyms: A-number

The alien registration number is assigned by the USCIS to a person who is not a citizen of the United States. The number is the identifier of the USCIS file for the alien.

Usage Note: When printed it appears as "A" followed by seven, eight or nine digits. In electronic form the "A" is omitted and the digits are right justified with leading zeros.

Logical Format (Type/Max Length): AN/9

BFDARN

alienNumber type: string