Address Checker and Postal Address Verification Services

You’ve probably heard the term” Address Checker” or “IP Checker” but not really how it works. Long story short, an “Address Checker” is a software tool that can (on the computer’s command) find out if a given postal address belongs to a valid street name in a given town or city. In other words, it finds out whether the street name is a sub-division of the address or not. Long story short, an “Entries” checker or” ZIP code checker” can find out whether the street name and/or postal code matches the address on file. To know when to use it specifically for AVS address verification services and when to validate data with USPS address checker first, read this brief blog post. Specifically, we’ll review both types of verification to demonstrate how they overlap and differ below.

A few years ago, companies like Experian, Equifax, and TransUnion were the only ones that could perform address verification. Today there are many more companies that offer address validation as a service. Companies in the banking and insurance industries often use it to check whether billing addresses match addresses they have collected from their customers. Many software programs also offer address verification for healthcare providers.

How to Perform Address Verification?

When using a USPS or a third-party postal address verification tools, you will be asked to enter one or more pieces of information about your street address. Once entered, the software will run through the database to see if it finds matches. It may come up with multiple matches (if it has a good address list), or it might not. Generally, however, only the first 100 addresses in the database will be checked. That’s because USPS only allows the public to access their database for free, and only if it contains records of public use – not personal records.

Some people are concerned about privacy concerns associated with using a third-party address verification tool and rightfully so. There is a chance that your neighbours, co-workers, or relatives may be sending you junk mail using a postal address database that you did not create. But the vast majority of users have no problem handing over their information to these services because they understand that the data is held securely and will not be used for purposes other than verifying addresses. And even when your address database does contain sensitive information that you do not want shared with the wrong people, such as financial information or sensitive business information, the vast majority of address checkers and address verification systems are very secure.

One of the main problems for businesses using third-party address verification software is the speed at which data is uploaded to their databases. As time goes on, businesses end up with lots of incomplete data, and when they have an address data drop, they can experience significant delays in loading new addresses into their system. Some address checkers and address validation systems simply do not have the processing power to add new addresses as quickly as businesses need them. If the system that you are using does not automatically upload the latest data to your database when you request it, you should upgrade it immediately. In addition, if your data does not come into the database right away, you could experience delays in receiving it. In some cases, if your batch address verification system fails, you could get a” Connection failed” error instead of the expected” Dates Expected When Data Was Updated” message.

For most customers, the real problem comes down to using the checker/ validation tool to actually find the correct names, phone numbers, and addresses. A checker/ validate does not have the advanced technology necessary to provide users with an exact match with a phone number or address. To perform an exact match, you would have to run the checkers against a phone directory, take advantage of routing codes, and use multiple filters (e.g., zip codes and cities) in order to refine your search. Even then, the accuracy rate for finding an exact match is low.


Using an address verification service can help businesses save time and money. In addition to helping businesses find the contact information that they need when it comes to mailing addresses, they can do so in much less time than it would take them to manually search for each address on their own. Address checkers and postal address verification services generally cost between five cents and ten cents per listing searched. This price includes all the benefits associated with using an address checker/verifier: unlimited search lists, accurate, instant results, validation, and detailed reports about the contact that you are searching. This cost typically gives businesses a significant savings.

Businesses that are concerned about getting the mail delivered to the correct address can take advantage of address validation services. The accuracy rates of these services allow businesses to eliminate wasting money and time by not verifying and checking addresses of potential customers or clients. Address checkers and postal address verification services may be used to generate not only mailing addresses but contact details as well.

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