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Port 37242 services

2 entries are registered on port 3724. It is a registered port (1024–49151) — IANA records an assignee, but nothing stops other software from listening here, which is why the number carries more than one entry.

entries
2

services registered on this number

transport
tcp · udp

2 transports in use

in transit
0/2

entries encrypted on the wire

worst risk
4/10

0 of 2 iana-registered

Services on this port

ranked by lookups
portservicerisk
:3724Club Penguincaution
:3724World of Warcraftcaution

01Club Penguintcp · unofficial · risk 4/10

Port 3724 was primarily associated with the popular online multiplayer game Club Penguin by Disney, designed as a safe and engaging virtual world for kids. This port facilitated client-server communication to handle player interactions, game updates, account management, and various multimedia features within the game environment. While the original Club Penguin has been discontinued, this port was widely used during its active years for real-time gameplay and content delivery.

port 3724 as Club Penguin →

02World of Warcrafttcp · udp · unofficial · risk 4/10

Port 3724 is primarily used by World of Warcraft, a popular massively multiplayer online role-playing game (MMORPG) developed by Blizzard Entertainment. It facilitates client-server communications essential for gameplay, including authentication, world updates, and player actions. As an unofficial yet standard port for this game, it supports both TCP and UDP protocols to ensure responsive, immersive online gaming experiences.

port 3724 as World of Warcraft →
filed underGamingVoice and ChatNetwork Services

Which one is on your host

ask the machine, not the registry

The registry says what 3724 is registered to. What is listening on it right now is decided by the host, and only the host can be asked. Each of these prints the process behind the socket.

linux
ss -ltnp | grep ':3724\b'
macos
lsof -nP -iTCP:3724 -sTCP:LISTEN
windows
netstat -ano | findstr :3724

On Linux and Windows the process name comes back with the socket; on macOS lsof needs sudo to name a process that isn't yours. Match what it prints against the 2 entries above.

A port number is not a service. Anything may listen on 3724 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.

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