CyberHunter
Local dataset, no network
// Other services

Port 6627: Allied Electronics NeXGen

Port 6627 is assigned by IANA to nexgen (Allied Electronics NeXGen).

6627

How nexgen works

Other services
client:6627nexgenresponse client:6627nexgenresponse

The client sends a request to port 6627 and the nexgen 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
Registered (1024-49151)
Category
Other services
01 Security

Is port 6627 dangerous?

We have no specific security note for port 6627. 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 6627

ServicePortTransportDescriptionReferenceUpdated
nexgen 6627 TCP, UDP Allied Electronics NeXGen - 2005-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 6627, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6627'      # process listening on 6627
sudo lsof -nP -i :6627

macOS

sudo lsof -nP -i :6627

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6627 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6627
netstat -ano | findstr :6627

From another machine

nmap -p 6627 -sV <host>
sudo nmap -sU -p 6627 <host>
nc -zv <host> 6627

Block it in the firewall

sudo ufw deny 6627/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6627" -Direction Inbound -LocalPort 6627 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6627 used for?

Port 6627 is assigned by IANA to nexgen (Allied Electronics NeXGen).

Is port 6627 TCP or UDP?

Port 6627 is registered for TCP and UDP.

Is it safe to open port 6627?

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 6627 is open?

On Linux run "ss -ltnup 'sport = :6627'", on macOS "lsof -nP -i :6627", and on Windows "netstat -ano | findstr :6627" to see the local process. From another machine, "nmap -p 6627 <host>" shows whether it is reachable.

05 Related
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