What are the first 4 numbers of a Visa card?

Related questions

1. What is UnionPay card number?
2. Are all credit card numbers 16 digits?
3. What is the card number on a Visa card?
4. Why was my HSA card declined?
5. Where do I find my credit card number?
6. What number do Visa cards start with?
7. Where is the card number on a card?
8. What credit card starts with 47?
9. How do I find out my card number?
10. What is my debit card number?

Tags

1. #meaning
2. #diners
3. #those
4. #american
5. #actually
6. #discover
7. #digits
8. #numbers
9. #mastercard
10. #shorter
11. #first
12. #digit
13. #express
14. #issuing
15. #groups
16. #institution