When sending labels directly to your printers, the Shiptheory Print Client allows Shiptheory to communicate directly with your printers.

In some cases, you may not be able to reach the Shiptheory Print Client from your device due to network restrictions on your device or network. If this is the case, you may need to ask your IT Administrator to whitelist the below IP Addresses and Ports.


What IP Addresses and Ports does the Shiptheory Print Client Use?
The Shiptheory Print Client uses the below IP Addresses.

  • 5.10.27.35
  • 5.10.27.36
  • 5.10.27.37
  • 5.10.27.38
  • 5.10.27.39
  • 51.89.234.183
  • 51.195.131.83
  • 5.10.23.32/27 (that is, 5.10.23.32 - 5.10.23.63)
  • 81.133.234.202
  • 94.228.44.135
  • 5.10.23.36


The Shiptheory Print Client requires ports: 6123, 443 and 80 to be open so it can make outbound TCP connections.

Note that not all need to be open as it will just use the first available port.



If you're looking for Shiptheory's other IP addresses for non Print Client issues, they can be found here.

Would like any help with this? One of our Support Team would be happy to give you a hand!