Port Numbers | Different port numbers and Why they used ?

7/TCP,UDP Echo
15/TCP,UDP NETSTAT
20/TCP FTP—data
21/TCP FTP—control (command)
22/TCP,UDP Secure Shell (SSH)—used for secure logins, file transfers (scp, sftp) and port forwarding
23/TCP,UDP Telnet protocol
25/TCP,UDP Simple Mail Transfer Protocol (SMTP)
42/TCP,UDP nameserver, ARPA Host Name Server Protocol
43/TCP WHOIS protocol
53/TCP,UDP Domain Name System (DNS)
79/TCP Finger protocol
80/TCP Hypertext Transfer Protocol (HTTP)
110/TCP Post Office Protocol 3 (POP3)
115/TCP Simple File Transfer Protocol (SFTP)
143/TCP,UDP Internet Message Access Protocol (IMAP)
156/TCP,UDP SQL Service
443/TCP Hypertext Transfer Protocol over TLS/SSL (HTTPS)
514/TCP Shell
546/TCP,UDP DHCPv6 client
547/TCP,UDP DHCPv6 server
873/TCP rsync file synchronisation protocol
901/TCP Samba Web Administration Tool (SWAT)
902/TCP VMware Server Console[27]
904/TCP VMware Server Alternate
1025/TCP NFS-or-IIS
1194/TCP,UDP OpenVPN
1433/TCP,UDP Microsoft SQL Server database management system Server
2049/UDP Network File System
2082/TCP CPanel default
2083/TCP CPanel default SSL
2083/TCP CPanel default SSL
2083/TCP CPanel default SSL
2095/TCP CPanel default Web mail
2096/TCP CPanel default SSL Web mail
2096/TCP CPanel default SSL Web mail
3306/TCP,UDP MySQL database system
3690/TCP,UDP Subversion version control system
5050/TCP Yahoo! Messenger
5432/TCP,UDP PostgreSQL database system
8080/TCP Apache Tomcat
8086/TCP HELM Web Host Automation Windows Control Panel
8087/TCP SW Soft Plesk Control Panel
8443/TCP SW Soft Plesk Control Panel
33434/TCP,UDP traceroute