16
17
16
visa number
The L1 Visa number is located on the visa page that is usually stamped in the passport. The visa number may appear under control number on the visa page itself.
16 numbers
10
on the front of the visa card
A Visa number on any type of visa is like a serial number or control number used usually for security purposes or tracking purposes.
There is only one card number in a visa debit card. It has 16 digits
16
Your visa number is typically not located on your border crossing card, as this card is primarily used for travel between the U.S. and Mexico. Instead, your visa number is found on your visa itself, which is usually a separate document affixed to your passport. If you need to find your visa number, check the visa page in your passport where it will be labeled as "Visa Number" or "Control Number."
Depends what visa and what country