What is Registered Ports?
Registered Ports Definition: Ports 1024 to 49151. These ports typically accompany non-system applications associated with vendors and developers.
Understanding Registered Ports
Ports 1024 to 49151. These ports typically accompany non-system applications associated with vendors and developers. Registered ports are the middle range of the TCP/IP port numbers that are assigned by IANA but not reserved for system services. Theyre typically used by application-level protocols and services installed by users or third-party software. While not as strictly controlled as well-known ports registered ports follow registration procedures. Port assignments are documented in IANA Service Name and Port Number Registry following RFC 6335 guidelines. Organizations manage registered ports through network security policies firewall rules port registration processes and network monitoring. For example an enterprise might implement firewall policies that block all registered ports by default explicitly allowing only specific ports needed for business applications like port 3389 for Remote Desktop or 1433 for SQL Server while monitoring for unexpected traffic on other registered ports that could indicate unauthorized applications or malicious activity. Related terms Port numbers TCP/IP Well-known ports Dynamic ports Firewall Network security Service registration Application layer protocol.