nominatim.osm.org
OpenStreetMap Nominatim: SearchReport problem with results. Before reporting problems please read the user documentation. If your problem relates to the address of a particular search result please use the 'details' link to check how the address was generated before reporting a problem. Use Nominatim issues on github. Problems that contain enough detail are likely to get looked at before ones that require significant research. Nominatim is a search engine for OpenStreetMap. For more information visit the Nominatim wiki page.
http://nominatim.osm.org/