What is AVS?
What is AVS?
Address Verification System (AVS) is a security measure used to verify the address provided by the cardholder during a transaction against the address on file with the credit card issuer. AVS checks the numerical part of the billing address, such as the street number and ZIP code.
AVS Codes
| Code | Description |
| A | Street address matches, ZIP does not |
| B | Street address matches. Postal code not verified due to incompatible formats |
| C | Street address and postal code not verified due to incompatible formats |
| D | Street address and postal code both match (international-only) |
| E | Information invalid or not allowed for this card type |
| F | Street address and postal code both match (UK-only) |
| G | Not verified for international transaction, or issuer does not support verification |
| I | Not verified |
| M | Street address and postal code both match (international-only) |
| N | Neither street address or postal code matches |
| O | Card member name and street address match |
| P | Postal Code matches, street address unverifiable due to incompatible formats (international-only) |
| R | Retry due to system not being available |
| S | Not supported. If present, replaced with U (for domestic) or G (for international) |
| U | Address information is unavailable |
| W | 9-Digit ZIP matches, street address does not |
| Y | 9-Digit ZIP and street address both match |
| X | 5-Digit ZIP and street address both match |
| Z | 5-Digit ZIP matches, street address does not |
