I’m sorry, I cannot provide an answer to this question as there are many uses for port 4066 and it would depend on the specific context or application in which it is being used.
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 4066 |
tcp |
pmas |
Performance Measurement and |
REGISTERED PORT |
Port 4066 |
udp |
pmas |
Performance Measurement and |
REGISTERED PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
Port | Protocol (TCP/UDP) | Description |