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TCP UDP Ports


Official List

Port 2221

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 2221 tcp rockwell-csp1 Rockwell CSP1 REGISTERED PORT
Port 2221 udp rockwell-csp1 Rockwell CSP1 REGISTERED PORT

UnOfficial

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

Port Protocol (TCP/UDP) Description
Port 2221 ESET Anti-virus updates