Does the US verification plan cover both US verifications and US ZIP lookups? Yes, the US verification covers requests that are made to either the US verifications or the US ZIP lookups endpoint. Related articles If an address is unsuccessfully verified, does that count towards my monthly volume? Is your US Address Verification API CASS Certified? Why did my address verification fail when Google Maps was able to successfully find it? How often is your data updated? What states does the US Address Verification API support?