Port 8809MCPTT Off-Network Protocol (MONP)

UDP 8809 carries 3GPP MCPTT call-control traffic between devices communicating directly without network infrastructure.

transport: udp
in transit: encrypted
assignment: official
risk: 2/10
lookups: 0

also known as 3gpp-monp, MONP

Technical Details

what runs on :8809

MONP is the 3GPP protocol for MCPTT off-network operation and is assigned UDP port 8809. It carries protocol messages between participating devices for direct-mode MCPTT services, including call and floor-control procedures. UDP has no connection handshake; MONP is not a general-purpose web or SIP service. Its intended setting is device-to-device communication over 3GPP direct communication, rather than a listener reachable across the public internet.

Security Information

exposure of :8809

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

voice and chat averages 3.3 across 192 ports — this one sits 1.3 below.

in transit

encrypted

payloads are protected on the wire

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

This is a specialized device protocol, not a service that should normally be exposed to the public internet. In a secured MCPTT deployment, traffic protection depends on the applicable 3GPP security procedures and provisioned credentials; an open UDP port alone does not establish that a device is authenticated or protected. An exposed implementation could be probed with crafted datagrams, so restrict it to the intended direct-communication interface and authorized devices.

Record

iana registry entry

port: :8809
service: MCPTT Off-Network Protocol (MONP)
transport: UDP
encryption: tls / encrypted
assignment: iana registered
risk: 2/10safe
category: Voice and Chat Mobile
usage: MONP is used by 3GPP Mission Critical Push-to-Talk (MCPTT) devices in off-network mode, where devices communicate directly rather than through an MCPTT service. Engineers are most likely to encounter it on compatible public-safety or mission-critical radio equipment, not as a general-purpose internet server.
lookups: 0rank 993
added: 2026-10-14
updated: 2026-10-14
references: IANA service name registry — port 8809

Something wrong?

This record is maintained by the engineers who use port 8809. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-14.

01edit any field on a page of its own
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edit this record →back to the registry

Related Ports

all 192 in voice and chat →

the 8 most looked-up other ports in voice and chat — 192 ports carry that label.

port	service	proto	category	risk	views
:9090	Openfire Admin Console	TCP	Web Services	caution	34.2k
:1513	Garena Gaming	TCPUDP	Gaming	caution	33.1k
:9091	Openfire Admin Console (SSL)	TCPtls	Web Services	caution	28.3k
:2031	Mobrien Chat	TCPUDP	Web Services	caution	27.7k
:1720	H.323 Signaling	TCP	Network Services	caution	26.5k
:6005	Camfrog Chat	TCP	Voice and Chat	caution	25.2k
:3001	Miralix Phone Monitor	TCP	Network Services	caution	21.7k
:9009	Pichat Server	TCPUDP	Network Services	caution	19.7k

risk mix of the 8 listed

caution100%

1 of 8 encrypted

Port :8809MCPTT Off-Network Protocol (MONP)

Technical Details

Security Information

Related Ports

Port 8809MCPTT Off-Network Protocol (MONP)