CVV Format Test Examples: 3-Digit and 4-Digit

Our Cards

Choose from any of our gift cards to give to your loved ones

CVV Format Test Guide

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Where to Use?

Redeem your gift cards at any of our Merchants

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Where to Buy?

You can purchase a gift card from any of these locations

CVV Format Test Service: How Card Verification Checks Work

ABOUT US

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What is ONYX GiftCards?

Onyx Gift Cards is a Grenadian company designed to introduce, market and manage gift cards systems in Grenada for retailers and corporations. We are enthusiastic about the effect and influence we will have on the local market. We intend to expand our systems regionally with a range of product offerings and services.

What is a Gift Card?

Gift cards are the preferred way of giving and receiving gifts. They carry a monetary value that can be redeemed for gifts at your favorite store.
Onyx GiftCards are “Open Gift Cards” which means that they can be redeemed at multiple merchant locations. They are standard credit card size, can fit into the average wallet and made of PVC plastic. Onyx GiftCards are Barcoded for security and safety for the consumer and bear a disclaimer at the back.
Onyx Giftcards can be bought with a branded Card backer which is black in colour and is designed to fit the card. There is an area to write a brief message to the recipient as well.

How it Works?

  • Buy an Onyx Gift Card at these local stores
  • Give your gift card to friends, family, co-workers, etc.
  • The recipient can shop at our select merchants nationwide
  • Your friends, family, co-workers, etc. will present their gift card at checkout to pay for your item(s)
  • They will walk away happy with the best gift ever...the gift of Choice

Why ONYX GiftCards?

  • Save TIME. No need to run around looking for the perfect gift
  • Redeem from a variety of business island-wide. We will continue adding businesses as fast as ONYX grows.
  • ONYX Gift Cards do not expire
  • Cards are valued at convinient amounts to meet every need and occasion

CVV test examples are placeholder numbers used in sandbox payment systems. They show the format. They do not work on live payment gateways. Visa, Mastercard, and Discover use 3 digits. American Express uses 4 digits.

What the CVV Format Is

The CVV is a code printed on a payment card. It is not stored in the magnetic stripe. It is not embossed on the card face. The code helps verify that the person entering card data has the physical card.

Test Values in Sandbox Environments

Payment processors publish test card numbers for developers. Stripe lists test card numbers that work with any future expiry date and any 3-digit CVC. The CVC value is not checked in test mode. It can be 123, 000, or 999. The processor checks that the field contains 3 digits for most card brands.

3-Digit CVV Examples

Three-digit test values follow the format of Visa CVV2, Mastercard CVC2, and Discover CID. Example strings: 123, 456, 000, 999. These strings are format samples. They are not tied to any real account. Any 3-digit string passes the format check in a sandbox.

4-Digit CID Examples

American Express uses a 4-digit card identification number (CID). Test examples include 1234, 0000, and 9999. The sandbox for Amex test cards requires 4 digits in the CID field. A 3-digit value fails the format check.

Rules That Apply to Test Numbers

Test CVV values work with test card numbers. They do not work with real card numbers on live systems. A live authorization request with a test CVV returns a decline. The test values are public and not secret. They carry no value outside a sandbox. Real CVV codes are private. Sharing a real CVV exposes the cardholder to fraud. No public source lists real CVV codes. Any site that claims to sell CVV data is selling stolen payment credentials. That activity is illegal in the US and most countries.

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