The PushCoin Point of Sale (POS) systems need access to the following web Internet resources on TCP ports 80 and 443:

  1. (AWS cloud, see below)

AWS cloud IP ranges

PushCoin makes use of the AWS cloud to ensure high availability. The following regions are to be allowed through as specified in this document

  • US East (Ohio) (us-east-2)
  • US East (N. Virginia) (us-east-1)
  • US West (Oregon) (us-west-2)

Network time sync over NTP

Android devices synchronize its clocks through access to NTP servers at and all sub-computers under * like

NTP is a UDP-based service using a well-known port 123. We recommend opening traffic on UDP/123 to any remote host.

Google Play

A stock Android device such as a tablet or a smartphone contacts Google Play servers for checking internet connectivity, push notifications and software updates. These services will fail to operate if the Google Play ports TCP and UDP 5228 are blocked.

You can refer to connectivity requirements page on Google Play Help for more information.

Best practices

Due to overall complexity of the system, we recommend that the PushCoin POS terminals run in a dedicated VLAN and a customized set of firewall rules. That way it will be easier to isolate the “PushCoin traffic” without unnecessarily exposing other components of your network.