Networking reference
TCP & UDP Port Numbers – Service & Protocol Lookup
Search the complete IANA service-name and port-number registry by port, protocol, service, assignee or RFC, including TCP, UDP, SCTP, DCCP and unqualified entries.
| Port | Protocol | Service | Description | Assignee | Registration date | Reference/RFC | Status | Record details |
|---|---|---|---|---|---|---|---|---|
| — | UDP | meshcop | Thread Mesh Commissioning | Thread Group, Inc. | 2020-11-20 | — | Service name only | → |
| — | UDP | meshcop-e | Thread Mesh Commissioning Ephemeral-key | Thread Group, Inc. | 2024-01-22 | — | Service name only | → |
| — | Not specified | mi-raysat | Mental Ray for Maya | Autodesk | — | — | Service name only | → |
| — | TCP | microdeep | A protocol for controlling a microscope | Zorth Sarl | 2023-08-02 | — | Service name only | → |
| — | UDP | midi2 | MIDI 2.0 Device Discovery | MIDI Manufacturers Association | 2023-11-07 | — | Service name only | → |
| — | TCP | mieleacs | Protocol for connected accessories | Miele & Cie. KG | 2018-04-20 | — | Service name only | → |
| — | TCP | mieleathome | Miele@home Protocol | Miele & Cie. KG | 2014-03-13 | — | Service name only | → |
| — | TCP | mieleprof | Miele protocol for prof. appliances | Miele & Cie. KG | 2018-04-20 | — | Service name only | → |
| — | TCP | mielesemiprof | Miele protocol for semi prof. appliances | Miele & Cie. KG | 2018-04-20 | — | Service name only | → |
| — | TCP | mist | A Medical Interoperability Service Type, used to identify medical devices providing network interfaces. | Jon Griffeth | 2017-01-12 | — | Service name only | → |
| — | TCP | mles | Mles is a client-server data distribution protocol targeted to serve as a lightweight and reliable distributed publish/subscribe database service. | Juhamatti Kuusisaari | 2017-02-24 | — | Service name only | → |
| — | TCP | mmm | Provides a client with access to the Mathematical Mesh, a user-focused PKI. | Phillip Hallam-Baker | 2015-11-18 | — | Service name only | → |
| — | TCP | mms-edgerouter | Maritime Messaging Service Edge Router | Radio Technical Commission for Maritime Services | 2026-03-18 | — | Service name only | → |
| — | TCP | mn-passage | A Remote Control Application service used to control Computers on a Local Area Network | Midnight Oil Enterprises, LLC | 2013-07-09 | — | Service name only | → |
| — | UDP | mn-passage | A Remote Control Application service used to control Computers on a Local Area Network | Midnight Oil Enterprises, LLC | 2013-07-09 | — | Service name only | → |
| — | Not specified | modolansrv | modo LAN Services | Matt Craig | — | — | Service name only | → |
| — | TCP | mogeneti-auth | Authentication service for Mogeneti Software Applications | Mogeneti | 2012-09-26 | — | Service name only | → |
| — | UDP | moncon | Sonnox MCON monitor controller protocol | Sonnox Ltd | 2018-08-15 | — | Service name only | → |
| — | Not specified | moneysync | SplashMoney Synchronization Service | Justin Cepelak | — | — | Service name only | → |
| — | Not specified | moneyworks | MoneyWorks Gold and MoneyWorks Datacentre network service | Rowan Daniell | — | — | Service name only | → |
| — | Not specified | moodring | Bonjour Mood Ring tutorial program | Daniel Steinberg | — | — | Service name only | → |
| — | Not specified | mother | Mother script server protocol | Jonathan | — | — | Service name only | → |
| — | Not specified | movieslate | MovieSlate digital clapperboard | Cliff Joyce | — | — | Service name only | → |
| — | Not specified | mp3sushi | MP3 Sushi | Alexandre Carlhian | — | — | Service name only | → |
| — | Not specified | mqtt | IBM MQ Telemetry Transport Broker | AndySC | — | — | Service name only | → |
| — | Not specified | mslingshot | Martian SlingShot | Martin Technology | — | — | Service name only | → |
| — | TCP | msrps | MSRP protocol over TLS | — | — | [RFC4976] | Service name only | → |
| — | Not specified | mumble | Mumble VoIP communication protocol | Thorvald Natvig | — | — | Service name only | → |
| — | Not specified | musicmachine | Protocol for a distributed music playing service | Johan Mjones | — | — | Service name only | → |
| — | Not specified | mysync | MySync Protocol | Martin Redington | — | — | Service name only | → |
| — | Not specified | mttp | MenuTunes Sharing | iThink Software | — | — | Service name only | → |
| — | Not specified | mxim-art2 | Maxim Integrated Products Automated Roadtest Mk II | Zach Metzinger | — | — | Service name only | → |
| — | Not specified | mxim-ice | Maxim Integrated Products In-circuit Emulator | Zach Metzinger | — | — | Service name only | → |
| — | Not specified | mxs | MatrixStore | Object Matrix | — | — | Service name only | → |
| — | TCP | naio | NetAcquire server input/output protocol | NetAcquire Corporation | 2018-06-20 | — | Service name only | → |
| — | TCP | nasmon | Proprietary communication protocol for NAS Monitor | Infinite Loop | 2012-10-09 | — | Service name only | → |
| — | UDP | nasmon | Proprietary communication protocol for NAS Monitor | Infinite Loop | 2012-10-09 | — | Service name only | → |
| — | TCP | nasunifiler | This DNS-SD service is used by mobile clients to locate the Nasuni Filer (a storage product) for a given company. | Nasuni Corporation | 2016-01-22 | — | Service name only | → |
| — | Not specified | ncbroadcast | Network Clipboard Broadcasts | Thom McGrath | — | — | Service name only | → |
| — | Not specified | ncdirect | Network Clipboard Direct Transfers | Thom McGrath | — | — | Service name only | → |
| — | TCP | ncount-issuer | The issuer service in the n-Count electronic value transfer system | n-Count Technology B.V. | 2013-01-22 | — | Service name only | → |
| — | Not specified | ncsyncserver | Network Clipboard Sync Server | Thom McGrath | — | — | Service name only | → |
| — | TCP | ndi | IP based video discovery and usage | NewTek Inc | 2022-11-22 | — | Service name only | → |
| — | UDP | ndi | IP based video discovery and usage | NewTek Inc | 2022-11-22 | — | Service name only | → |
| — | TCP | nedap-aepu | Nedap AEOS processing unit | Nedap | 2014-08-28 | — | Service name only | → |
| — | UDP | neoriders | NeoRiders Client Discovery Protocol | Jesse W. Towner | — | — | Service name only | → |
| — | TCP | netready | UpdateLogic NetReady Device Identification | UpdateLogic, Inc. | 2014-10-27 | — | Service name only | → |
| — | Not specified | netrestore | NetRestore | Mike Bombich | — | — | Service name only | → |
| — | TCP | netvu-video | AD Group NetVu Connected Video | AD Holdings | 2011-10-11 | — | Service name only | → |
| — | TCP | nextcap | Proprietary communication protocol for NextCap capture solution | NextDay Aps | 2012-04-24 | — | Service name only | → |
Look up a port number, service name, transport protocol, assignee or RFC in IANA's current registry. The table keeps every row in the 17 August 2026 snapshot, so one port can appear more than once when it has separate TCP, UDP or other registrations.
How to use the port lookup
Enter a number such as 22, 53, 80, 443, 3306 or 8080 to find exact registrations and any registered range containing that port. You can also search for a service such as ssh or mysql, a protocol, an assignee, or reference text such as RFC9110. Use the Protocol and Status filters when a search returns several rows.
Blank values mean the source registry does not provide that field. They have not been guessed. Assignee identifiers are resolved against the people and organisations directory in IANA's XML registry where a readable name is available.
Port ranges and status labels
- System ports: 0–1023. These are also commonly called well-known ports.
- User ports: 1024–49151. IANA can register services in this range.
- Dynamic or private ports: 49152–65535. IANA does not assign services from this range.
Status is a page-level label derived from the source row. Reserved and Unassigned follow IANA's description. Rows whose source text identifies a de-registration or removal are labelled Deprecated or removed. A row with a service name but no port is labelled Service name only. All other rows are labelled Assigned.
Why the same port can have several entries
TCP and UDP are different transport protocols, so the same number can be registered for both without representing the same network conversation. The registry also includes SCTP, DCCP, aliases, historic records and registrations without a specified transport protocol. They remain in this database so the source is not reduced to a hand-picked list.
Common port questions
What service normally uses port 22?
IANA registers ssh on port 22 for TCP and UDP, with an additional SCTP registration. In everyday networks, TCP port 22 is the familiar SSH remote-access service.
Why does port 53 show TCP and UDP?
The domain service is registered on port 53 for both TCP and UDP. DNS software chooses the transport according to the operation and response requirements.
What is the difference between ports 80 and 443?
IANA associates port 80 with HTTP-related service names and port 443 with HTTPS. A registration describes the conventional use; it does not inspect or guarantee the traffic running there.
What uses port 3306?
The registry lists mysql on port 3306 for TCP and UDP. MySQL client connections are ordinarily associated with TCP, but this page retains both official registry rows.
Is port 8080 always an HTTP proxy?
No. IANA registers http-alt on port 8080 for TCP and UDP, but applications can use ports differently. Identify the listening process and configuration before drawing a security conclusion.
Should I open a port because it is registered here?
No. Open only the ports required by a known application and restrict source networks where possible. A registry entry is not a firewall recommendation.
IANA updates the registry as assignments change. Use Report incorrect data if this snapshot no longer matches the official record, and include the IANA or RFC link so the change can be verified.
Provenance