OPEN PARCEL NUMBERS (OPN)

A trusted, standardized way to identify every parcel in America — designed for government, insurers, real estate, finance, construction platforms, and AI-driven geospatial analytics.

Why OPN Exists

Every county uses a different parcel numbering system. Local data sponsors use different numbering systems. OPN USA solves this by establishing a consistent, reproducible, and permanent parcel identifier, enabling clear interoperability across jurisdictions, datasets, and analytical platforms.

Key Use Cases

Insurance & Risk
Accurate parcels drive better underwriting models and more precise exposure aggregation.

Government, Real Estate & Infrastructure
Interoperable parcel indexing supports permitting, emergency response, and capital planning.

AI & Data Systems
A stable parcel index dramatically improves dataset alignment and geospatial AI performance.