Port 621

Modified by:

Port 621 is commonly used by the macOS Server app for FileMaker Pro sharing. It is also used for HOF (Highly Optimized File) transfers in the HOF protocol.

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 621
tcp
escp-ip
ESCP
WELL KNOWN PORT
Port 621
udp
escp-ip
ESCP
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 8078
Port 8078 is not assigned to any specific service or application by the Internet
Port 3685
Port 3685 is typically used for Apple’s GarageBand software, which enables users to create
Port 4351
Port 4351 is commonly used for the Cisco Identity Services Engine (ISE) communication protocol,
Port 1703
Port 1703 is typically used for the remote management of Microsoft’s SMS (System Management
Port 2688
Port 2688 is used for the Network UPS Tools (NUT) service. NUT is an
Port 8555
Ports those registered with IANA are shown as official ports. The same port number
Port 4427
Ports those registered with IANA are shown as official ports. The same port number
Port 2080
Port 2080 is commonly used for communicating with Apache Tomcat application server through the
Port 5299
Port 5299 is commonly used for the IBM Tivoli Netcool/OMNIbus communication server. This port
Port 3462
Ports those registered with IANA are shown as official ports. The same port number
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