There are many sections asking for A# (Aline number). Actually, I found one on my EAD (OPT) card, but it says USCIS #. and it's also 9 digit number like alien number. According to USCIS.gov website, it is same number, but some people say it's totally different one.
A given name (also known as a personal name, first name, forename, or Christian name) is a part of a person's full nomenclature.It identifies a specific person, and differentiates that person from other members of a group, such as a family or clan, with whom that person shares a common surname.The term given name refers to the fact that the name is bestowed upon, or given to a child, usually by its parents, at or near the time of birth.t identifies a specific person, and differentiates that person from other members of a group, such as a family or clan, with whom that person shares a common surname. The term given name refers to the fact that the name is bestowed upon, or given to a child, usually by its parents, at or near the time of birth.
For the name distinguishing one person from others with the same surname, see given name. A personal name or full name the set of names by which an individual is known and that can be recited as a word-group, with the understanding that, taken together, they all relate to that one individual. In many cultures, the term is synonymous with the birth and legal names of the individual, seen below.