Port 138

Modified by:

Port 138 is used for the NetBIOS datagram service, which is responsible for sending and receiving broadcast messages used for name resolution in a network. It is an older protocol, and is typically used in older Microsoft Windows environments. Today, it is mostly replaced by newer protocols such as DNS and WINS.

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 138
tcp
netbios-dgm
NETBIOS Datagram Service
WELL KNOWN PORT
Port 138
udp
netbios-dgm
NETBIOS Datagram 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
Ports 30800 – 30900
Port 30800- Port 30900 Port 30900- Port 31000 Port 31000- Port 31100 Port 31100-
Port 32772
Ports those registered with IANA are shown as official ports. The same port number
Ports 17000 – 18000
Port 17000- Port 17100 Port 17100- Port 17200 Port 17200- Port 17300 Port 17300-
Ports 34700 – 34800
Port 34700- Port 34800 Port 34800- Port 34900 Port 34900- Port 35000 Port 35000-
Ports 49900 – 50000
Port 49900- Port 50000 Port 50000- Port 50100 Port 50100- Port 50200 Port 50200-
Port 4108
Ports those registered with IANA are shown as official ports. The same port number
Port 4082
Ports those registered with IANA are shown as official ports. The same port number
Port 903
Port 903 is typically used for remote monitoring and management of distributed Java applications.
Port 1171
Ports those registered with IANA are shown as official ports. The same port number
Port 41111
Ports those registered with IANA are shown as official ports. The same port number
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