Port 1621

Modified by:

Port 1621 is not reserved for any specific application or service. It is an unassigned port, meaning it can be used by any application or service that needs it.

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 1621
tcp
softdataphone
softdataphone
REGISTERED PORT
Port 1621
udp
softdataphone
softdataphone
REGISTERED 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 1950
Ports those registered with IANA are shown as official ports. The same port number
Port 3609
Ports those registered with IANA are shown as official ports. The same port number
Port 1840
Port 1840 is commonly used by remote access tools such as GoToMyPC and LogMeIn.
Port 52
Port 52 is generally used for the Internet Datagram Protocol (IDP). It is a
Port 5398
Port 5398 is used for communication between Microsoft Remote Assistance and Remote Desktop. Ports
Port 3438
Port 3438 is commonly used for communication between EasyAntiCheat (a software used to prevent
Port 3833
Ports those registered with IANA are shown as official ports. The same port number
Port 67
Port 67 is used for the DHCP (Dynamic Host Configuration Protocol) server communication. It
Port 4311
Ports those registered with IANA are shown as official ports. The same port number
Port 3516
Ports those registered with IANA are shown as official ports. The same port number
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