Port 124 is typically used for the TCP control protocol used by the Command and Control Protocol (CCP) in Internet Protocol Version 6 (IPv6) networks. It allows communication between a network device and a centralized management system, such as a router or switch.
Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.
Official
| Port | Protocol (TCP/UDP) | Title | Description | Port Type |
| Port 124 | tcp | ansatrader | ANSA REX Trader | WELL KNOWN PORT |
| Port 124 | udp | ansatrader | ANSA REX Trader | WELL KNOWN PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |