When you applied for teh F-1 visa at the embassy in your home country, teh US embassy placed a stamp in your passport. The visa number is on the stamp.
I agree. You need to look at the visa stamp in your passport, not the I-20 or I-94.
This is general information, not legal advice, and does not create an attorney client relationship.
Look for the number on the visa in your passport.
(213) 394-4554 x0 Mr. Shusterman is a former INS Trial Attorney (1976-82) with over 35 years of immigration experience. His response to your question is general in nature, as not all the facts are known to him. You should retain an attorney experienced in immigration law to review all the facts in your case in order to receive advice specific to your case. Mr. Shusterman's statement above does not create an attorney/client relationship.