She may be assigned multiple alien numbers if she does not disclose prior petitions/applications. However, usually once the alien is fingerprinted any files with different alien numbers are consolidated. This means the physical files are linked to one another, but the alien number will not necessarily be changed to reflect the initial alien number she received.
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Eventually, based on fingerprints ... the A files will be consolidated.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.
Somewhat surprisingly, A #'s are not unique and specific to only 1 individual, unlike Social Security Numbers. Eventually, USCIS will select one of the A #'s and apply it to an individual's current case processing.
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