Port 1211 is commonly used for the Java Management Extensions Remote API, which allows for remote monitoring and management of Java applications.
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 1211 | tcp | groove-dpp | Groove DPP | REGISTERED PORT |
| Port 1211 | udp | groove-dpp | Groove DPP | REGISTERED PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |