Well-known · Windows

42 WINS / Host Name Server

TCP Assigned
UDP Yes
SCTP —
DCCP —

What it is

Microsoft WINS replication uses this Host Name Server port.

When / why

WINS replication between Windows name servers.

Protocol status detail

TransportStatusMeaning
TCP Assigned Assigned by IANA, but not standardized, specified, or widely used on this port.
UDP Yes Assigned by IANA and standardized, specified, or widely used on this port.
SCTP — Not applicable for this transport.
DCCP — Not applicable for this transport.
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Port range

Well-known (0–1023). System port for a core service. On Unix-like systems, binding it requires superuser privileges.

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