| AVS Response Codes | Description |
| B | Transaction was submitted without a billing address |
| E | AVS data projected is invalid or AVS is not allowed for the card type that was used |
| R | The AVS System was unavailable at the time of processing |
| G | The issuing bank is of non US origin and does not support AVS |
| U | The address information for the card holder is unavailable |
| S | The US card issuing bank does not support AVS |
| | |
| N | AVS information did not match |
| A | Address Match – zip didn’t |
| Z | Address did not match, Only zip code match |
| W | Address did not match, Zip code and extended zip code match |
| Y | Address and Zip code match |
