What is A number?
Alien number or commonly known as ‘A number’ is assigned to each person who intends to immigrate to the USA.
This 7 to 9 digit number, prefixed with the letter ‘A’ can be found in various documents that have been issued to you by USCIS.
The 9-digit USCIS number printed on US permanent resident green cards is the same as the A-number.
Please note that PERM ETA number is not same as A (Alien) number.
This article will discuss:
i140 – A number on i797 form
The most common place is the i140 approval i797C form that carries ‘A number’ assigned to you:
Many times, the H1B visa employer does not share i140 approvals with the employee. In that case, you can use FOIA request and may need this A-number to improve your application.
EAD card – Alien Number
You can find your unique A number on your EAD card if any was ever issued to you. This includes OPT EAD, H4 EAD or L2 EAD, etc.
On EAD card, the USCIS# is the same as your A number and can be used whenever you need to enter Alien number.
A number will be required on the i-485 green card medical application form i-693.
Green Card Alien Registration Number
Green card also uses the term ‘USCIS#’ to mean Alien number.
Immigrant visa – Alien registration number
On your US immigrant visa, the same A number is referred to as ‘Registration number’.
A number is assigned only to people who file any visa application with the USA with the intent for permanent residence.
Hence, an H1B visa will not have the USCIS# or A number listed on the visa.
H1B Receipt Notice A Number
H1B applicants are assigned the A number once their employer files Green Card PERM application and then i140.
You can find your USCIS A-number on your EAD card, Green Card, Immigrant visa stamp, i140 approved i797 form, or work visa i797 C receipt notice.
The PERM A number and USCIS A number are not same.
H4 visa holders do not get A number.
The A-number printed on H1B i140 approval is only for the primary H1B.
You should mention the A number on the H4 EAD form if you were assigned an Alien number in the past.