TCP & UDP Ports

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Last updated 12:48 AM on 5/18/26
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33 Terms

1
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TCP 20

ftp-data File Transfer Protocol—Data

2
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TCP 21

ftp File Transfer Protocol—Control

3
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TCP 22

SSH

4
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TCP 23

Telnet

5
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TCP 25

smtp Simple Mail Transfer Protocol

6
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TCP/UDP 53

Domain Name System

7
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UDP 67

BOOTP/DHCP Server

8
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UDP 68

BOOTP/DHCP Client

9
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UDP 69

Trivial File Transfer Protocol

10
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TCP 80

HTTP

11
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TCP 110

Post Office Protocol

12
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UDP 123

Network Time Protocol/Simple NTP

13
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TCP 143

Internet Message Access Protocol

14
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UDP 161

Simple Network Management Protocol

15
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UDP 162

Simple Network Management Protocol Trap

16
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TCP/UDP 389

Lightweight Directory Access Protocol

17
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TCP 443

HTTPS

18
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TCP 445

Server Message Block over TCP/IP

19
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UDP 514

Syslog

20
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UDP 546

DHCPv6 Client

21
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TCP 547

DHCPv6 Server

22
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TCP 587

SMTP-Secure

23
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TCP 636

LDAP-Secure

24
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TCP 993

IMAP-Secure

25
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TCP 995

POP3-Secure

26
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TCP 1433

Structured Query Language (SQL) Server

27
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TCP 1521

Oracle SQL*Net

28
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TCP 3306

MySQL/MariaDB

29
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TCP 3389

Remote Desktop Protocol

30
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UDP 5004

Real-Time Protocol

31
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UDP 5005

Real-Time Control Protocol

32
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TCP/UDP 5060

Session Initiation Protocol

33
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TCP/UDP 5061

SIP-Secure