Following is a list of commonly used ports, and it does not include all possible ports that may be opened on a server.
CPANEL :
cPanel 2082 cPanel – SSL 2083 WHM 2086 WHM – SSL 2087 Webmail 2095 Webmail – SSL 2096
E-MAIL :
POP3 110 POP3 – SSL 995 IMAP 143 IMAP – SSL 993 SMTP 25 SMTP Alternate 587 SMTP – SSL 465
WEB :
HTTP 80 SSL 443 FTP 21 FTPs 990 SFTP 22 SFTP Shared/Reseller Servers 2222 Webdisk 2077 Webdisk – SSL 2078 MySQL 3306 MSSQL 1433 SSH 22 SSH Shared/Reseller Servers 2222