Trimble Maps Web Services does not have a static IP address, it is dynamic. Relying on an IP Address is highly discouraged, because it can cause timeouts and connectivity issues.


Our servers are hosted on the Amazon cloud. The ranges are owned by Amazon and not in our control.


If available, we recommend our customers use URL filtering for their firewall, allowing traffic from https://*.alk.com. Doing this will allow for all traffic from our maps and web services to pass through your firewall. For a detailed list of the URLs that each service leverages, please see the table below.


ServiceURLs to Allow
PC*MILER Web Services (Web APIs)https://pcmiler.alk.com

https://raster-tiles.alk.com/

https://d1hy44jg5yieun.cloudfront.net

JavaScript Mapshttps://maps.alk.com

https://pcmiler.alk.com, https://pcmiler-a.alk.com, https://pcmiler-b.alk.com, https://pcmiler-c.alk.com, https://pcmiler-d.alk.com


http://contentsvc.alk.com, http://contentsvc-a.alk.com, http://contentsvc-b.alk.com, http://contentsvc-c.alk.com, http://contentsvc-d.alk.com


http://contentsvc-sat.alk.com, http://contentsvc-sat-a.alk.com, http://contentsvc-sat-b.alk.com, http://contentsvc-sat-c.alk.com, http://contentsvc-sat-d.alk.com


http://contentsvc-trafficimg.alk.com, http://contentsvc-trafficimg-a.alk.com, http://contentsvc-trafficimg-b.alk.com, http://contentsvc-trafficimg-c.alk.com, http://contentsvc-trafficimg-d.alk.com


http://contentsvc-weather.alk.com, http://contentsvc-weather-a.alk.com, http://contentsvc-weather-b.alk.com, http://contentsvc-weather-c.alk.com, http://contentsvc-weather-d.alk.com

ContentToolshttps://contenttools.alk.com, https://dataanywhere.alk.com, https://contentsvc.alk.com,  https://authws.alk.com and all from Maps
MapSurehttps://mapsure.alk.com, https://dataanywhere.alk.com, https://contentsvc.alk.com, https://authws.alk.com and all from Maps