Port 139

Modified by:

Port 139 is known as NetBIOS Session Service. It is used for file and printer sharing over a network using the Server Message Block (SMB) protocol. This port is commonly used by Windows operating systems for network communication. However, it can also be used by malware to spread and infect other computers on the network.

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 139
tcp
netbios-ssn
NETBIOS Session Service
WELL KNOWN PORT
Port 139
udp
netbios-ssn
NETBIOS Session Service
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 3435
Ports those registered with IANA are shown as official ports. The same port number
Port 5090
Ports those registered with IANA are shown as official ports. The same port number
Port 20999
Port 20999 is primarily used for the communication between the client and server in
Ports 34900 – 35000
Port 34900- Port 35000 Port 35000- Port 35100 Port 35100- Port 35200 Port 35200-
Ports 43200 – 43300
Port 43200- Port 43300 Port 43300- Port 43400 Port 43400- Port 43500 Port 43500-
Port 359
Ports those registered with IANA are shown as official ports. The same port number
Port 14414
Ports those registered with IANA are shown as official ports. The same port number
Port 10001
Ports those registered with IANA are shown as official ports. The same port number
Port 3029
Ports those registered with IANA are shown as official ports. The same port number
Port 5678
Port 5678 is not assigned to any specific application or service by the Internet
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