

Your mail can show up faster, cheaper, and more reliably if you label things right, plus you get less returned mail.

We also provide up to 45 data points about the address, including county information, lat/long coordinates, time zone, whether the address is residential or commercial, and more data that can be used for business intelligence and to understand your mail recipients better.
Zip 4 lookup code#
Enriched Address Data - When you give Smarty an address and ask for the ZIP+4 Code, we give you the ZIP+4 Code along with the validated, standardized address.Comparing a table of standardized, verified addresses allows you to identify duplicates, delete redundancies or merge records easily. Clean, standard addresses are easy to sort and compare.
Zip 4 lookup zip#
So, you get much more than a pretty 9 digit ZIP Code you get a clean, standard address.

In fact, 5% of all addresses get their ZIP+4 Code changed each month. The +4 on a ZIP Code can change as frequently as every 30 days. Not so for the last 4 digits of Zip Code numbers. Five-digit ZIP Codes also change, but they do so infrequently it's less likely that you will live in a ZIP Code when it changes. They're not permanent lines, so a 9 digits ZIP Code can change regularly. The extra 4 digits on ZIP Codes identify segments of fluid postal delivery routes. Typically, each PO Box gets its own +4 Code, which often matches the box number. The USPS also assigns ZIP+4 Codes to PO Boxes. Usually, this comprises 5 to 20 homes or locations. These codes indicate a specific delivery route, meaning the actual path the mail truck would travel in a single drop-off.
Zip 4 lookup full#
Before you get the +4 Code, your address is taken through the full address standardization and validation process confirm the address is mailable. ZIP plus 4 lookup tools don't just do a full ZIP Code lookup. No matter what name you use, ZIP plus 4 Codes aid the USPS in sorting and distributing mail effectively. ZIP+4 Codes are also frequently referred to "Plus-Four Codes", "ZIP Code Extensions", "9 digit ZIP Codes", "Full ZIP Codes", or simply "Extended ZIP Codes". Using the full ZIP Code with the extra 4 digits when mailing via the USPS ensures the fastest, most accurate mailing possible. ZIP+4 Codes are 4-digit codes appended to the original 5-digit USPS ZIP Codes.
