The USPS offers a free tool to verify ZIP codes. This is a simple lookup process that returns the address in the correct format. However, the tool does not support bulk verification.
If you have a large mailing list, you may want to consider a third-party solution. These tools offer real-time address verification. They use a reliable database to verify addresses. You can save time and avoid costly mistakes by using these services.
Validating your addresses with a ZIP code is a quick and easy way to improve deliverability rates. It can also help minimize your return mails. Incorrect addresses can lead to higher postage costs. So it is important to verify your zip codes before sending out any mailings.
A valid address ensures your mail is delivered on time. If you have a PO Box without a ZIP code, you can still verify your addresses. Using a validated ZIP+4 code can help you qualify for special mailing rates.
Address verification solutions can also help you eliminate duplicated records. The USPS offers a variety of free APIs and web tools to integrate into your shipping applications. With these APIs, you can easily integrate address validation into your software.
In addition to the ZIP code, addresses must also include the city name. Many people do a zip code lookup by address. But this isn't the most accurate method.
Shipping carriers use the ZIP codes to sort packages and calculate their shipping rates. When you use the correct ZIP+4 codes, you can make sure your mail is sorted and delivered correctly.
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