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Port 444 Details

known port assignments and vulnerabilities
threat/application/port search:
Port(s) Protocol Service Details Source
444 tcp webex Cisco Webex Teams services uses these ports:
443,444,5004 TCP
53, 123, 5004, 33434-33598 UDP (SIP calls)

Microsoft Lync server uses these ports:
444, 445, 448, 881, 5041, 5060 - 5087, 8404 TCP
80, 135, 443, 4443, 8060, 8061, 8080 TCP - standard ports and HTTP(s) traffic
1434 UDP - SQL
49152-57500 TCP/UDP - media ports

Cortex Data Lake (Paloaltonetworks) and Panorama Connect use ports 444 and 3978 for logging
Cortex XDR (Paloaltonetworks) uses port 33221 as the default P2P content update distribution port for their security agents
444 tcp,udp SNPP, Simple Network Paging Protocol (RFC 1568) (official) Wikipedia
444 tcp,udp snpp Simple Network Paging Protocol SANS
444 tcp,udp snpp Simple Network Paging Protocol Nmap
444 tcp,udp snpp Simple Network Paging Protocol [RFC1568] IANA
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Related ports: 443  445  3978  5004  5060  33221  

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External Resources
SANS Internet Storm Center: port 444

Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming and realtime gaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

Please use the "Add Comment" button below to provide additional information or comments about port 444.
  User Reviews/Comments:
by Mario - 2020-07-29 08:20
Used by lync
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