TCP/IP Ports Used by Various Services

Port Range	Ports Called	Uses
0 to 1023	Well Known Ports/System Ports	The port numbers in the range from 0 to 1023 are the well-known ports. They are used by system processes that provide widely used types of network services.
1024 to 49151	Registered Ports	The range of port numbers from 1024 to 49151 are the registered ports. They are assigned by IANA for specific service upon application by a requesting entity. On most systems, registered ports can be used by ordinary users.
49152 to 65535	Dynamic and/or Private Ports	The range 49152–65535 – above the registered ports – contains dynamic or private ports that cannot be registered with IANA. This range is used for custom or temporary purposes and for automatic allocation of ephemeral ports.

Sr. No.	Service Name	Port Used
1	HTTP	80
2	HTTPS	443
3	SMTP	25
4	FTP control (command)	21
6	FTP data	20
7	Secure Shell(SSH)	22
8	pop3	110
9	pop2	109
10	Telnet	23
11	DNS	53
12	Gopher	70
13	SQL Services	118
14	Internet Relay Chat(IRC)	194
15	IMAP(v. 3.0) Internet Message Access Protocol	220
16	RPC(Remote Procedure Call)	530
17	DHCPv6 Client	546
18	DHCPv6 Server	547
19	CUPS (Common UNIX Printing System)	631
20	HTTP alternate and Apache Tomcat	8080