When we run the AddressFinder (NCOA) service, the database compares the addresses in your database against those in the US Postal Service's National Change of Address (NCOA) database. It will return the new address for the accounts that submitted a move to the USPS. You can also choose to have addresses standardized even if they didn't move. After you run this service, you might notice that some of the cities are abbreviated.
If you ran an AddressFinder (NCOA) before 8/23/2017, you may notice that city names over thirteen characters long were abbreviated. For example, "Black River Falls" will be abbreviated to "Blk River Fls" per the US Postal Service's standardization. The Post Office will deliver mail to addresses with shortened city names.
This issue was resolved on 8/23/2017. The next time you run AddressFinder (NCOA) any address processed or standardized will return with the full city name instead.