Dynamic and/or private ports: 49152–65535

By definition, no ports can be registered in the dynamic range.[1] Many Linux kernels and/or distros use 32768 to 61000. /proc/sys/net/ipv4/ip_local_port_range indicates the range in use. See also TCP and UDP portInternet Protocol Suite References ^ a b c d e f g "Port Numbers" (plain text). The Internet Assigned Numbers Authority (IANA). 2008-05-22. http://www.iana.org/assignments/port-numbers....

Registered ports: 1024–49151

1024–49151 Only those ports that are commonly used are listed; for full list, refer to the IANA port list.[1] When investigating TCP traffic, be careful not to confuse the client and server ports. The client port is incremental, typically beginning at 1024 at boot time and wrapping at 4096. If the port you are investigating is in the lower part of this range, it may be a client...