Simple API that returns the Windows Azure Region name associated with a provided IP address.
https://azureregionapi.azurewebsites.net
https://azureregionapi.azurewebsites.net/regions/<ip-address>
{ region: 'region name' }
{ region: '<unknown>' }
https://azureregionapi.azurewebsites.net/regions/137.116.184.4
{ region: 'uswest' }