Matching Pairs Port Numbers Matching GameOnline version Test your knowledge of common port numbers with this fun matching pairs game! by Dylan Andrada 1 LDAP 2 IMAP 3 SSH 4 RDP 5 POP3 6 DNS 7 HTTP 8 DHCP 9 FTP 10 SMTP 11 HTTPS 12 TELNET 13 SNMP TCP/143 UDP/161, UDP/162 TCP/53, UDP/53 TCP/80 UDP/67, UDP/68 TCP/3389 TCP/443 TCP/21, TCP/22 TCP/389 TCP/25 TCP/110 TCP/22 TCP/23