Port 139

TCPFile SharingMedium Usage

NetBIOS session service port for Windows file and printer sharing

Software Using This Port (3 software)

Windows NetBIOS

WindowsNetBIOSService

Samba

UnixSystemSMB/CIFSProtocol

VerifiedOfficial Website ↗

NetBIOS Session Service

NetBIOSServicePort

Usage Suggestions

  • Before using port 139, please confirm it is not occupied by other services
  • If you encounter port conflicts, consider using other ports or stopping the occupying service

Quick Info

Port
139
Protocol
TCP
Categories
File Sharing
Usage Status
3 software in use

Related Ports

Port 21TCP
→
Port 22TCP
→
Port 69UDP
→

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