An H-1B holder may have an Alien Registration Number, but H-1B status and an A-number are different things. Form I-129 asks separately for the beneficiary’s A-number, I-94 number, and other identifiers. Use an A-number that was actually assigned; do not substitute the petition receipt number. [3] [2]
Where to look
Review prior immigration documents for a field explicitly labeled A-number or USCIS number. The I-765 instructions explain that an A-number may be shown as the USCIS Number on the front of an EAD being renewed. That number is different from a case receipt or the card’s other identifiers. [4]
USCIS materials distinguish the A-number from the I-94 identifier and the SEVIS identifier used in student and exchange-visitor records. These numbers are not interchangeable merely because each appears in an immigration file. [1]
How to answer a form accurately
Read the instructions for the exact form you are completing. A field may have its own direction when no A-number exists; do not invent one or transfer a blank-field convention from another form. An older application can help locate a number, but compare it with the underlying document before copying it.
- Compare your full name and birth date on each notice.
- Locate the field label beside the number.
- Keep a separate list of receipt, admission, and registration identifiers.
- Correct discrepancies before filing another benefit request.
Why the distinction matters
An employer petition is a case; an I-94 records admission or an extension of stay; an A-number identifies an immigration record associated with a person. Giving the correct identifier helps USCIS match filings without suggesting that a visa classification itself creates permanent residence. [1] [3]
Practical application
An H-1B approval notice can contain more than one identifier. Copying the receipt number into an A-number field can make an otherwise accurate filing inconsistent with the agency record. When a prior form lists an A-number, compare the actual supporting notice rather than assuming the older entry was correct. Keep identifiers private when seeking help; a full notice can reveal much more than the number in question. [1] [2]
A number does not establish a benefit
An A-number identifies a person’s immigration record; it is not proof of approval of an application. A receipt number allows a specific case to be tracked. Keep the underlying decision or authorization document when proof of status or permission is required. [1] [2]
Related questions
Related guidance: A-Numbers and J-1 Exchange Visitors and A-numbers for F-1 students.
Primary sources
- USCIS SAVE Tutorial — Immigration Identifiers
- USCIS e-Request — Receipt Number Help
- USCIS Form I-129 — Part 3, Beneficiary Information
- USCIS Form I-765 Instructions — A-Number and EAD identifier
Sources checked: October 31, 2026.