W-7 Line 6c: What to enter for spouse who changed status from B1/B2 to F-2 (no F-2 visa stamp)
My wife entered the U.S. in June 2025 on a B1/B2 tourist visa. She applied for change of status to F-2 (dependent of F-1 STEM OPT holder) via Form I-539. The change was approved in October 2025, effective December 1, 2025. She received an I-797 approval notice with a new I-94 showing F-2 status, valid from 12/01/2025 to D/S.
She has never left the U.S. since arriving, so her passport only has the B1/B2 visa stamp — there is no F-2 visa stamp.
I am filing MFJ (I'm a resident alien on F-1 STEM OPT) and submitting Form W-7 with our joint 1040 to get her an ITIN. I'm applying under reason "e" (spouse of U.S. resident alien).
My question is specifically about line 6c (Type of U.S. visa, number, and expiration date): Should I enter the B1/B2 visa number and expiration from her passport, or her current F-2 classification with the I-94 number from the I-797? Or something else entirely?
I will be attaching her passport (with B1/B2 stamp), the I-539 approval notice (I-797 showing F-2), the new I-94, and her I-20.
Thanks in advance.