This feature lets you assign public IP addresses to virtual machines and web or worker roles so that they become directly addressable without having to map an endpoint for access. With Instance-Level Public IPs, you can enable scenarios such as running FTP servers in Azure and monitoring virtual machines directly using their IPs. When this feature became generally available, the limit of two IPs per subscription was removed. You’ll incur general availability pricing by using this feature, applied to your bill starting December 1, 2014.
For more information, go to Instance-Level Public IPs
. For a comprehensive look at pricing, go to Instance-Level Public IPs Pricing Details