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Find tools and Mastercard customer service support.

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Customer service

We’re here to help

Call the phone number on the back of your card or on your account statement. If you're unsure of the number, you can also reach us at +1 636 722 7111 or 1-800-Mastercard if calling from the United States.

With Mastercard, you have access to an array of payment tools

Whether you’re looking for an ATM or currency conversion rates, we can help.

Find an ATM

Whether you’re close to home or travelling, you’re never far from an ATM.

Access locator

Convert currency

Use our calculator to get foreign exchange rates.

Go to calculator

Card benefits and how to contact us

Explore card benefits

Shopping protection, savings and assistance are just some of the many ways using a Mastercard can help you.

Learn more
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Lost or stolen card?

Call 1-800-MASTERCARD (+1 800 627 8372) in the U.S. or +1 636 722 7111 from outside the U.S. for 24/7 assistance.

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Contact us

For questions not answered here, our customer care team is available to help. Call 1-800-MASTERCARD (+1 800 627 8372) in the U.S. or +1 636 722 7111 from outside the U.S. for 24/7 assistance.