Provider | Name | Reverse? | SSL? | Coverage | Terms

:------------- |:---- |:-------- |:---- |:-------- |:-----

[ArcGIS Online](https://developers.arcgis.com/en/features/geocoding/) | `arcgis_online` | yes | supported | worldwide | requires API key. 1250 requests free

[Bing Maps](http://msdn.microsoft.com/en-us/library/ff701713.aspx) | `bing_maps` | yes | no | worldwide | requires API key. Limit 10,000 requests per month

Chain | `chain` | | | | meta provider which iterates over a list of providers

[Geonames](http://www.geonames.org/commercial-webservices.html) | `geonames` | yes |no | worldwide | requires registration, no free tier

[Google Maps](https://developers.google.com/maps/documentation/geocoding/) | `google_maps` | yes | supported | worldwide | requires API key. Limit 2500 requests per day

[Google Maps for Business](https://developers.google.com/maps/documentation/business/) | `google_maps_business` | yes | supported | worldwide | requires API key. Limit 100,000 requests per day

[MapQuest](http://developer.mapquest.com/web/products/dev-services/geocoding-ws) | `map_quest` | yes | no | worldwide | both open and [commercial service](http://platform.mapquest.com/geocoding/) require API key

[Nominatim](http://wiki.openstreetmap.org/wiki/Nominatim) | `nominatim` | yes | supported | worldwide | requires a domain name (e.g. local installation)

[OpenCage](http://geocoder.opencagedata.com/) | `opencage` | yes | supported | worldwide | requires API key. 2500 requests/day free

[OpenStreetMap](http://wiki.openstreetmap.org/wiki/Nominatim) | `openstreetmap` | yes | no | worldwide | heavy users (>1q/s) get banned

[TomTom](https://geocoder.tomtom.com/app/view/index) | `tomtom` | yes | required | worldwide | requires API key. First 2500 requests or 30 days free

[Yandex](http://api.yandex.com/maps/) | `yandex` | yes | no | worldwide

Provider | Name | IPv4? | IPv6? | Terms | Notes

:-------- |:---- |:----- |:----- |:----- |:-----

[FreeGeoIp](http://freegeoip.net/) | `free_geo_ip` | yes | yes

[GeoIPs](http://www.geoips.com/en/) | `geo_ips` | yes | no | requires API key

[GeoIP2](https://www.maxmind.com/en/geoip2-databases) (Maxmind) | `maxmind_geoip2` | yes | yes |

[GeoPlugin](http://www.geoplugin.com/) | `geo_plugin` | yes | yes |

[HostIp](http://www.hostip.info/use.html) | `host_ip` | yes | no

[IpInfoDB](http://ipinfodb.com/) | `ip_info_db` | yes | no | requires API key. | city precision

Geoip | `geoip` | | | | wrapper around the [PHP extension](http://php.net/manual/en/book.geoip.php) which must be installed

[MaxMind](https://www.maxmind.com/) web service | `maxmind` | yes | yes | requires Omni API key | City/ISP/Org and Omni services, IPv6 on country level

MaxMind Binary file | `maxmind_binary` | yes | no | | needs locally installed database files