Below is a list of all possible AVS Responses:

Code	Message	Response Definition
0	Approved	Address verification was not requested.
A	Address Match	The street address submitted matches what is on file.
B	Address Match	The street address submitted matches what is on file. The ZIP code does not match what was on file. (EdgePay will Decline.)
C	Service Unavailable	This service is not supported.
D	Exact Match	The street address submitted matches what is on file.
F	Exact Match	The street address and ZIP code submitted match what is on file. This applies to UK transactions.
G	Version Unavailable	The issuer does not participate in this service. This applies to non-US issuers.
I	Version Unavailable	The AVS information was not verified.
M	Exact Match	The street address submitted matches what is on file.
N	No Match	Neither the street address or ZIP code match what is on file. (EdgePay will Decline.)
P	Zip Match	The ZIP code submitted matches what is on file. The street address does not match what is on file. (EdgePay will Decline.)
R	Retry	The issuer system is currently unavailable.
S	Serv Unavailable	This service is not supported.
U	Ver Unavailable	AVS is unavailable.
W	Zip Match	The nine character ZIP code submitted matches what is on file.
X	Exact Match	The nine character ZIP code submitted matches what is on file.
Y	Exact Match	The five character ZIP code submitted matches what is on file
Z	Zip Match	The nine character ZIP code submitted matches what is on file.
1	Cardholder name and ZIP match	AMEX only; The cardholder name and ZIP code submitted matches what is on file.
2	Cardholder name, address, and ZIP match	AMEX only; The cardholder name, address, and ZIP code submitted match what is on file.
3	Cardholder name and address match	AMEX only; The cardholder name and address submitted match what is on file.
4	Cardholder name match	AMEX only; The cardholder name submitted match what is on file.
5	Cardholder name incorrect, ZIP match	AMEX only; The cardholder name does not match what is on file. The ZIP code submitted matches what is on file. (EdgePay will Decline.)
6	Cardholder name incorrect, address and ZIP match	AMEX only; The cardholder name does not match what is on file. The address and ZIP code submitted matches what is on file. (EdgePay will Decline.)
7	Cardholder name incorrect, address match	AMEX only; The cardholder name does not match what is on file. The address submitted matches what is on file. (EdgePay will Decline.)
8	Cardholder, all do not match	AMEX only; Neither the cardholder name, address, or ZIP code match what is on file (EdgePay will Decline.)

Below is the AVS Response once declined for having a mismatch Billing ZIP code.

{
"avsResponse": "No Match(N) : Neither the street address or ZIP code match what is on file.",
}