Spatial Insights is pleased to offer accurate and current ZIP+4 Centroids from GbBIS. GbBIS applies their technology and expertise to create accurate ZIP+4 Centroid geography that are compatible with CASS-certified systems.

GbBIS ZIP+4 Centroids are often used for target marketing and accurate enough for companies to create their own deliery areas/zones.

GbBIS ZIP+4 Centroids have the following characteristics:

• updated monthly
• created from the same data and systems provided by the US Postal Service for producing CASS Certified systems.
• truly encapsulate US Postal Service carriers' routes.