"AVS verifies the numeric portions of a cardholder's billing address. For example, if the address is 101 Main Street, Highland, CA 92346, in the United States, AVS will check 101 and 92346. Sometimes AVS checks additional digits such as an apartment number, other times it does not..."
They might call it 'full address', still it's just the numeric part.
Ah thanks.
Thought it was doing more but for most cases that would be enough. Most fraud isn't very sophisticated so just the number and zip would be enough.
I had remembered from an earlier implementation that it would check everything and that we could approve transactions where numerics match but text part isn't the same; but possibly it was simply choosing what to do if street address was ok (for the number) but the postal code was wrong/missing, as here most people don't care about their postal code and may enter it wrongly.