Various Well known Services and their Port numbers

Port-      TCP/UDP             Protocol

7                                           Echo

20           TCP                       FTP—data transfer

21           TCP                       FTP—control

22                                         SSH

23                                         Telnet

25           TCP                       Simple Mail Transfer Protocol (SMTP)

53           TCP, UDP              Domain Name System (DNS)

67                                          DCHP Server

68                                          DHCP Client

69                                          TFTP (Initialization)

80           TCP, UDP              Hyper Text Transfer Protocol (HTTP)

109         TCP                        Post Office Protocol v2 (POP2)

110         TCP                        Post Office Protocol v3 (POP3)

443         TCP                        HTTPS (HTTP Over SSL/TLS)

465         TCP                        SMTP over SSL

546                                         DHCP Client(IP v6)

547                                         DHCP Server(IP v6)

587         TCP                        E-mail message submission (SMTP)

Thanks to Meraj Khan and Chankey Pathak, my friends for suggesting more port numbers.