If you have an open port, it is not dangerous. An open port means a port through which anyone can try to connect to your network. You may wish to close these ports if you do not use them. Different ports and their numbers are used for different purposes.

Thank you for your help Surfboard Community Moderator Team.   If I’m the only one in my home so I was confused of phone numbers not mine showing open ports I look on fing once and a while when my data changes realized for someone like myself have no idea what I’m looking at what it is or means don’t know what I should see and not    I do appreciate your time and helping me to understand.