The service provides geolocation and geocoding services based on a Natural Area Code (NAC). Accuracy can vary, from a two-character code identifying an area roughly 1000 km east-to-west and 750 km north-to-south to a ten-character code marking a location approximately 1 square meter anywhere in the world. Longer NACs can function as Universal Addresses, because they are accurate to the size of a building.
API methods support generation of NAC values at either two-, four-, eight-, or ten-character accuracy based on input of location coordinates such as a street address or latitude/longitude coordinates. Methods provide for both geocoding and reverse geocoding, along with mapping coordinates, route planning, and definition of a great circle path between specified points. API documentation is available, but additional information is sparse and dated, so viability of the service may be in question.