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Port 5506 (amc)

IANA assigns port 5506 to amc: Amcom Mobile Connect.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
amc TCP Amcom Mobile Connect Aaron Fracht Monroe -
amc UDP Amcom Mobile Connect Aaron Fracht Monroe -

Registry dates for this port: registered 2010-06-03.

Check what is listening on port 5506

Linux: is anything listening on TCP 5506?
sudo ss -tlnp 'sport = :5506'
Linux: UDP 5506
sudo ss -ulnp 'sport = :5506'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5506
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5506 '
Windows (Command Prompt)
netstat -ano | findstr :5506
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5506 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5506
From Windows
Test-NetConnection HOST -Port 5506
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5506

Block port 5506 in the firewall

ufw
sudo ufw deny 5506/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5506 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5506 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5506' -Direction Inbound -Protocol TCP -LocalPort 5506 -Action Block
ufw
sudo ufw deny 5506/udp
iptables
sudo iptables -A INPUT -p udp --dport 5506 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5506 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5506' -Direction Inbound -Protocol UDP -LocalPort 5506 -Action Block

Related ports

5504fcp-cics-gw15505checkoutdb5507psl-management5540matter

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.