# Overture Maps Foundation and attributed providers

https://docs.overturemaps.org/guides/places/

CDLA-Permissive-2.0 / Apache-2.0 / CC0-1.0 by row. Source-isolated derived contacts. Per-record producer, license, ID and source date retained.
No guarantee of current phone attribution; never caller authentication.
Overture existence confidence is not phone confidence. Apache-2.0 notices: https://docs.overturemaps.org/attribution/

Foursquare: Copyright 2024 Foursquare Labs, Inc. All rights reserved. Original data transformed by Overture to its schema (2026-03-18); DOUTEO filtered and normalized public fixed telephone contacts from release 2026-10-21.0.