Where do I find my USCIS receipt number?
Where you find it
On the notice USCIS mailed you (Form I-797C), in the box at the top left marked “Receipt Number”. It is 13 characters: three letters and ten digits — for example IOE0912345678.
Why they ask for it
With that number you can check your case status on the official USCIS page.
Also asked as
What is Form I-797C?
This explains where a value appears on your documents. It is not legal advice or an opinion about your case.
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