Port 1873

Modified by:

Port 1873 is commonly used for communication between MQTT (Message Queuing Telemetry Transport) clients and brokers. MQTT is a lightweight messaging protocol designed for communication between Internet of Things (IoT) devices. Port 1873 is specifically used for MQTT Secure (MQTT-S) communication over SSL/TLS.

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 1873
tcp
fjmpjps
Fjmpjps
REGISTERED PORT
Port 1873
udp
fjmpjps
Fjmpjps
REGISTERED PORT

UnOfficial

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

Port Protocol (TCP/UDP) Description
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