This is a list of Overlaxed's Common open ports, This list does not INCLUDE ALL THE PORTS POSSIBLE As it's only about the common ones 

Open Ports:

21 FTP

22 SSH

23 TELNET

53 DNS

80 HTTP

110 POP3

115 SFTP

135 RPC

139 NetBIOS

143 IMAP

194 IRC

443 SSL

445 SMB

1433 MSSQL

3306 MySQL

3389 Remote Desktop

5632 PCAnywhere

5900 VNC

25565 Minecraft

Closed Ports

25 SMTP - For security concerns