Port 100

Modified by:

Port 100 is not assigned to any specific service or application. It is therefore considered to be an unassigned or reserved port.

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 100
tcp
newacct
[unauthorized use]
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 4667
Port 4667 is typically used for the online chat protocol MIRC. It is a
Port 3488
Port 3488 is primarily used by the ClearOne Converge Pro 840T conference phone system
Port 1503
Port 1503 is a TCP port used to establish a connection between a client
Port 1138
Port 1138 is not a well-known or registered port number, so it is not
Port 1926
Ports those registered with IANA are shown as official ports. The same port number
Ports 35600 – 35700
Port 35600- Port 35700 Port 35700- Port 35800 Port 35800- Port 35900 Port 35900-
Port 2361
Ports those registered with IANA are shown as official ports. The same port number
Port 8021
Port 8021 is used for FTP control traffic over SSL/TLS. It is often used
Port 495
Ports those registered with IANA are shown as official ports. The same port number
Ports 50400 – 50500
Port 50400- Port 50500 Port 50500- Port 50600 Port 50600- Port 50700 Port 50700-
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