Port 36443M2 Application Part (M2AP)

M2AP carries LTE eNodeB–MCE control signaling for Multimedia Broadcast/Multicast Service (MBMS) over SCTP.

transport: sctp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as M2 interface

Technical Details

what runs on :36443

M2AP is specified by 3GPP TS 36.444 and uses SCTP on port 36443. Its ASN.1-encoded messages support procedures such as M2 Setup and MBMS session control between the eNodeB and MCE. SCTP provides transport but does not encrypt the traffic; protection depends on the operator's network security configuration.

Security Information

exposure of :36443

risk score

2/ 10safe

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

network services averages 2.6 across 1,996 ports — this one sits 0.6 below.

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

sctp

every listening transport is another surface to filter at the edge

security overview

This control-plane interface is intended for trusted mobile-network infrastructure, not direct Internet exposure. Restrict SCTP associations to known peers and apply operator network-domain protections, such as IPsec where appropriate; an exposed endpoint could be probed or sent unwanted signaling, though this is a niche service and no specific known exploit is implied.

Record

iana registry entry

port: :36443
service: M2 Application Part (M2AP)
transport: SCTP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services Mobile
usage: This is the standardized LTE M2 control-plane protocol between an eNodeB and a Multi-cell/multicast Coordination Entity (MCE). Operators use it for MBMS-related coordination; it is a specialized interface, not a general-purpose service.
lookups: 0rank 993
added: 2026-10-20
updated: 2026-10-20
references: IANA service name registry — port 36443

Something wrong?

This record is maintained by the engineers who use port 36443. 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 2026-10-20.

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edit this record →back to the registry

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :36443M2 Application Part (M2AP)

Technical Details

Security Information

Related Ports

Port 36443M2 Application Part (M2AP)