Port 20

Modified by:

Port 20 is typically used for FTP (File Transfer Protocol) data transfer in active mode.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 20
tcp
ftp-data
File Transfer [Default
WELL KNOWN PORT
Port 20
udp
ftp-data
File Transfer [Default
WELL KNOWN PORT
Port 20
sctp
ftp-data
FTP
WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
TCP UDP Ports
Other ports
Port 554
Port 554 is used for Real Time Streaming Protocol (RTSP) which is a network
Port 7680
Port 7680 is typically used for the communication between the client and server in
Port 1363
Port 1363 is typically used for various purposes such as Network Data Management Protocol
Ports 29400 – 29500
Port 29400- Port 29500 Port 29500- Port 29600 Port 29600- Port 29700 Port 29700-
Port 1477
Ports those registered with IANA are shown as official ports. The same port number
Port 1742
Ports those registered with IANA are shown as official ports. The same port number
Port 9500
Ports those registered with IANA are shown as official ports. The same port number
Port 2879
Ports those registered with IANA are shown as official ports. The same port number
Port 7173
Ports those registered with IANA are shown as official ports. The same port number
Port 672
Ports those registered with IANA are shown as official ports. The same port number
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