Address Verification Service (AVS)
The Address Verification Service (AVS) is a system designed by credit card and bankcard processors to aid in the detection of suspicious credit card transaction activity. AVS matches billing address information provided by the cardholder with the cardholder’s billing address on file at the credit card issuing bank. The processing network then sends an AVS response code indicating the results of the match to the payment gateway. The AVS response code can be found in the payment gateway transaction response as well as on the Transaction Detail page. Based on your AVS rejection settings, the transaction is accepted or rejected. Transactions that are rejected will display a transaction status of Declined (AVS Mismatch) on the Transaction Detail page.
The following chart explains all the different response codes a processing Bank may return:
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