meshtastic/docs/development/firmware/port-numbers.mdx
2022-11-07 23:53:52 -05:00

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---
id: portnum
title: Meshtastic Port Numbers
sidebar_label: Port Numbers
---
Any new app that runs on the device or via sister apps on phones/PCs should pick and use a unique "portnum" for their applications use.
The current list of port numbers can be found listed in the [protobufs](/docs/developers/protobufs/api#portnumsproto)
## Assignment
PortNums should be assigned by the following ranges:
| Portnum | Usage |
|:-------:|:---------------------------------------------------------------------------------------------------------------------- |
| 0-63 | Core Meshtastic use, do not use for third party apps. |
| 64-127 | Registered 3rd party apps, send in a pull request that adds a new entry to portnums.proto to register your application |
| 256-511 | Use one of these portnums for your private applications that you do not want to register publicly |
All other values are reserved.
## Integration
If you are making a new app using Meshtastic, please send a pull request to add your chosen "portnum" to this master table.