Port 9999 – Debug Servers / IoT Interfaces / Custom AppsPort 9099 – Firebase Auth Emulator / Dev Tools / Custom Web AppsPort 8000 – Web Servers / Development APIsPort 7777 – Game Servers / Custom ServicesPort 7547 – CWMP / TR-069 (CPE WAN Management Protocol)Port 631 – IPP (Internet Printing Protocol)Port 62078 – Apple iTunes Sync / usbmuxdPort 554 – RTSP (Real-Time Streaming Protocol)Port 5357 – WSDAPI (Web Services for Devices)Port 5355 – LLMNR (Link-Local Multicast Name Resolution)