Port 3400 is commonly used by the node.js package manager (npm) for hosting local development servers. It can also be used for various other purposes, but it is not a well-known or standardized port.
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 3400 |
tcp |
csms2 |
CSMS2 |
REGISTERED PORT |
Port 3400 |
udp |
csms2 |
CSMS2 |
REGISTERED PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
Port | Protocol (TCP/UDP) | Description |