Shiptheory connects to your system and carrier systems to exchange order data. If you are using a firewall to restrict access to any aspect of your system, you may need to add Shiptheory's IP addresses to allow for a successful data transmission.


Please ask your system administrator to add the following IP's to your firewall, where required.


  • 67.227.254.115
  • 69.16.195.57

  • 172.94.14.108
  • 185.52.109.17 

    The ports that Shiptheory use are 80, 443 and 6123.


Historic IP addresses that Shiptheory used, but you no longer need to have white-listed are below.

  • 5.10.27.35
  • 5.10.27.36
  • 5.148.*



If you have any questions, please contact us.