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// Other services

Port 610: npmp-local

Port 610 is assigned by IANA to npmp-local (npmp-local).

610

How npmp-local works

Other services
client:610npmp-localresponse client:610npmp-localresponse

The client sends a request to port 610 and the npmp-local service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Other services
01 Security

Is port 610 dangerous?

We have no specific security note for port 610. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 610

ServicePortTransportDescriptionReferenceUpdated
npmp-local 610 TCP, UDP npmp-local - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 610, and is it reachable?

Linux

sudo ss -ltnup 'sport = :610'      # process listening on 610
sudo lsof -nP -i :610

macOS

sudo lsof -nP -i :610

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 610 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 610
netstat -ano | findstr :610

From another machine

nmap -p 610 -sV <host>
sudo nmap -sU -p 610 <host>
nc -zv <host> 610

Block it in the firewall

sudo ufw deny 610/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 610" -Direction Inbound -LocalPort 610 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 610 used for?

Port 610 is assigned by IANA to npmp-local (npmp-local).

Is port 610 TCP or UDP?

Port 610 is registered for TCP and UDP.

Is it safe to open port 610?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 610 is open?

On Linux run "ss -ltnup 'sport = :610'", on macOS "lsof -nP -i :610", and on Windows "netstat -ano | findstr :610" to see the local process. From another machine, "nmap -p 610 <host>" shows whether it is reachable.

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