Port 2727Media Gateway Control Protocol (MGCP) Call Agent

MGCP call agents use port 2727 to control VoIP media gateways; the gateways typically use port 2427.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 8/10
lookups: 0

also known as mgcp-callagent, MGCP

Technical Details

what runs on :2727

Port 2727 is the MGCP call-agent side of the protocol; gateways typically use port 2427. MGCP carries text commands and responses, commonly over UDP, with transaction identifiers and retransmission behavior; the IANA registration also covers TCP. Commands such as CreateConnection and ModifyConnection tell a gateway how to handle an endpoint, while the call agent and gateway use SDP to negotiate media details. The actual voice media usually flows separately over RTP ports.

Security Information

exposure of :2727

risk score

8/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

network services averages 2.7 across 1,325 ports — this one sits 5.3 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

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

reachable over

tcp · udp

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

security overview

MGCP is a control-plane protocol and is not encrypted by default; it also does not provide application-level authentication. An attacker able to reach a gateway's MGCP interface may be able to disrupt calls or manipulate endpoints, so restrict access to trusted call agents and voice-network segments, or protect the traffic with network-layer security. It should not be exposed directly to the internet.

Record

iana registry entry

port: :2727
service: Media Gateway Control Protocol (MGCP) Call Agent
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 8/10risk
category: Network Services Voice and Chat
usage: A softswitch or call agent uses this port to direct MGCP-controlled VoIP gateways, which connect calls and manage media endpoints. Engineers typically encounter it on private or carrier voice networks, not as a service intended for public internet access.
lookups: 0rank 993
added: 2026-09-24
updated: 2026-09-24
references: IANA service name registry — port 2727

Something wrong?

This record is maintained by the engineers who use port 2727. 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 2026-09-24.

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :2727Media Gateway Control Protocol (MGCP) Call Agent

Technical Details

Security Information

Related Ports

Port 2727Media Gateway Control Protocol (MGCP) Call Agent