Port 443

Modified by:

Port 443 is used for HTTPS (Hypertext Transfer Protocol Secure), which is a protocol used for secure communication over the internet. It is commonly used for secure transactions such as online banking, shopping, and secure data transfer. It encrypts the data being exchanged between a client and a server, making it difficult for anyone to intercept the communication and steal sensitive information.

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 443
tcp
http
http protocol over
WELL KNOWN PORT
Port 443
udp
http
http protocol over
WELL KNOWN PORT
Port 443
sctp
http
HTTPS
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 5555
Port 5555 is often used for remote debugging or remote management applications, such as
Port 214
Ports those registered with IANA are shown as official ports. The same port number
Port 1646
Port 1646 is commonly used for authentication services when using Remote Authentication Dial-In User
Port 645
Port 645 is typically used for network file transfer and synchronization services, such as
Port 1739
Ports those registered with IANA are shown as official ports. The same port number
Port 322
Ports those registered with IANA are shown as official ports. The same port number
Ports 19200 – 19300
Port 19200- Port 19300 Port 19300- Port 19400 Port 19400- Port 19500 Port 19500-
Port 5010
Ports those registered with IANA are shown as official ports. The same port number
Port 619
Ports those registered with IANA are shown as official ports. The same port number
Ports 24300 – 24400
Port 24300- Port 24400 Port 24400- Port 24500 Port 24500- Port 24600 Port 24600-
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