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Unique Identifiers

The ULI, which is still in development, is meant to provide all real estate licensees a unique ID number, whether or not they are affiliated with the National Association of REALTORS® (NAR). While NAR’s NRDS ID number is a critical cornerstone of identifiable information, it does not account for non-members. The ULI will attempt to bridge that gap within the U.S. as well as internationally.

The Universal Property Identifer (UPI) is a portable mechanism for uniquely identifying properties. RESO has formulated a basic concept that a property identifier be derived from the authoritative public descriptions. The UPI helps avoid the duplication of referenced properties. | MORE INFORMATION

The UOI API provides the ability of any organization to query the API to receive basic real estate organization information, including the UOI number itself.

The UOI (formerly OUID) provides organizations within the real estate industry a unique ID number. The UOI list includes a comprehensive list of REALTOR® associations, MLSs, real estate technology companies, and other affiliated businesses and data providers. Having such a list at hand is useful for keeping track of unique business entities and their affiliations without including duplicate records. Companies are regularly edited and added to the list. | MORE INFORMATION

RESO has either implemented or embarked upon three equally important projects meant to give a unique or universal identifying code for every piece of property, every real estate organization, and every licensed real estate agent. These identifiers are called the Universal Property Identifier (UPI), Unique Organization Identifier (UOI), and Unique Licensee Identifier (ULI). | MORE INFORMATION

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