Where Is My Alien Registration Number or A number?
Alien Registration Number or A number found on EAD (OPT, H4 L2 etc) card, Green Card, Immigrant Visa or i140 approval i797c form. USCIS number = A number.
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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 the PERM ETA number is not the same as the A (Alien) number.
Where Can I find my Alien Number?
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 the 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 the EAD card, the USCIS# is the same as your A number and can be used whenever you need to enter the 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.
i485 Receipt Notice
You can find your A-number on the i485 receipt notice as well if you do not have access to your i140.
You will need this A-number if you want to interfile the i-693 medical form before USCIS issues an RFE for your pending ‘Adjustment-of-status’.
H1B Receipt Notice A Number
H1B applicants are assigned the A number once their employer files Green Card PERM application and then i140.
A Number format: A-XXX-XXX-XXX
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 the same.
A number on i140 approval is a 9 digit number whereas ETA 9089 number is a 10 digit number.
ETA number format: T-XXXXX-XXXX
A Number format: A-XXX-XXX-XXX
H4 visa holders do not get an 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.
A number is not mandatory on the USCIS i693 form. You can leave it blank if you do not have the A number assigned yet.
In most cases, you will need to file the i693 form when you are filing your i485 green card application. If you are filling the i693 form after you have already filed i485, then your A number is written on your i485 receipt notice.
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