List Hygiene — ABCs of Improving Address Quality

Address Accuracy a Must

The accuracy of an address refers to having the address formatted correctly and being sure that the address actually exists. This can be a more complex process than you may think. Running an address through the CASS certification process will often identify and correct many obvious problems, such as street misspellings, mistaken abbreviations and the like, while adding a correct ZIP+4. Just because an address passes CASS certification does not mean it actually exists. CASS software only matches on address ranges, so as long as the block exists, an incorrect address may pass.