Before you start
Have your card in hand and choose a quiet, private location. A balance check is fast — usually under two minutes — but it does require entering the full card number and security code, so privacy matters.
What you will need
- The 16-digit card number printed or embossed on the front of the card.
- The 3- or 4-digit security code (also called CVV or PIN) printed on the back, sometimes under a scratch-off panel.
- The customer-service URL or phone number printed on the reverse of the card.
What you will not need
- Your name, address, or Social Security number — a real balance lookup never asks for these.
- Login credentials for any other account.
- A one-time SMS verification code from another service.
If a page asks for any of the items in the second list, close it. You are almost certainly on a look-alike phishing site.