Residential delivery index
for residence vs. business detection
The Postal Service™ RDI™ database
allows ZP4 to determine if an address is a residence or a business.
Unlike the Postal Service
ZIP + 4®,
DPV®,
DirectDPV™,
LACSLink®,
SuiteLink™,
and eLOT® databases that Semaphore Corporation
redistributes directly to customers,
qualified ZP4 users must license and receive RDI data directly from the Postal Service.
Contact the RDI department at 800-331-5747 to obtain a license for RDI data.
Once you receive RDI data files from the Postal Service,
ZP4's installer lets you add the RDI data to the ZP4 database,
and
RDI output can then be generated using ZP4's "BDI" and "RDI" output fields.
RDI databases expire along with the ZIP + 4 database.
Once an RDI database expires, you must purchase a current RDI database, and the corresponding ZP4 edition, to continue performing RDI lookups.
Go to the ZP4 home page.
Semaphore Corporation is a non-exclusive licensee of the
United States Postal Service®.
The prices of Semaphore Corporation products
are not established, controlled or approved by the Postal Service.
The following trademarks are owned by the United States Postal Service:
DirectDPV,
DPV,
eLOT,
LACSLink,
RDI,
SuiteLink,
ZIP + 4,
Postal Service,
and United States Postal Service. [DA#4.07]