# OsmoHLR

> cellular network subscriber database and authentication key store

**Wikidata**: [Q67038869](https://www.wikidata.org/wiki/Q67038869)  
**Source**: https://4ort.xyz/entity/osmohlr

## Summary
OsmoHLR is a free software implementation of a Home Location Register (HLR) for cellular networks, serving as a subscriber database and authentication key store. It is part of the OpenBSC project and is licensed under the GNU Affero General Public License, version 3.0 or later.

## Key Facts
- **Instance of**: Protocol stack, free software, and mobile telecommunication technology
- **Based on**: OpenBSC, a free software GSM implementation
- **Developer**: Open Source Mobile Communications
- **License**: GNU Affero General Public License, version 3.0 or later
- **Website**: [osmocom.org/projects/osmo-hlr/](https://osmocom.org/projects/osmo-hlr/)
- **Aliases**: Osmocom Home Location Register
- **Copyright status**: Copyrighted
- **Programming language**: Q15777 (Wikidata identifier for programming languages)

## FAQs
### Q: What is the primary function of OsmoHLR?
A: OsmoHLR serves as a subscriber database and authentication key store for cellular networks, managing user identities and security credentials.

### Q: Is OsmoHLR open-source software?
A: Yes, OsmoHLR is free software licensed under the GNU Affero General Public License, version 3.0 or later.

### Q: What project is OsmoHLR a part of?
A: OsmoHLR is part of the OpenBSC project, which provides a free software implementation of GSM network components.

### Q: Who develops OsmoHLR?
A: OsmoHLR is developed by Open Source Mobile Communications.

### Q: What license does OsmoHLR use?
A: OsmoHLR is licensed under the GNU Affero General Public License, version 3.0 or later.

## Why It Matters
OsmoHLR plays a critical role in mobile telecommunication technology by providing a free and open-source solution for managing subscriber data and authentication keys in cellular networks. As part of the OpenBSC project, it contributes to the development of a fully open-source GSM implementation, which can be used for research, education, and deployment of independent cellular networks. This software is particularly valuable for organizations and individuals looking to avoid proprietary dependencies in telecommunication infrastructure. By offering a transparent and modifiable HLR solution, OsmoHLR supports the principles of open-source development and fosters innovation in mobile network technologies.

## Notable For
- **Open-source HLR**: Provides a free alternative to proprietary subscriber databases in cellular networks.
- **Integration with OpenBSC**: Works seamlessly with the OpenBSC project to create a complete open-source GSM network stack.
- **GNU AGPL License**: Ensures that modifications and derivatives of OsmoHLR remain open-source.
- **Mobile Telecommunication Technology**: Contributes to the broader field of mobile communication by offering a modular and customizable solution.

## Body
### Overview
OsmoHLR is a key component of the OpenBSC project, designed to function as a Home Location Register (HLR) in cellular networks. It stores subscriber information and authentication keys, enabling secure and efficient network operations.

### Development and Licensing
OsmoHLR is developed by Open Source Mobile Communications and is released under the GNU Affero General Public License, version 3.0 or later. This license ensures that the software remains open-source and that any modifications or derivatives are also distributed under the same terms.

### Integration with OpenBSC
As part of the OpenBSC project, OsmoHLR integrates with other open-source GSM components to provide a complete, free software implementation of a cellular network. This integration allows for the deployment of independent and customizable GSM networks.

### Technical Specifications
OsmoHLR is implemented as a protocol stack and is written in a programming language identified by Q15777 in Wikidata. It is designed to work within the broader framework of mobile telecommunication technology, supporting the management of subscriber data and authentication processes.

### Copyright and Usage
OsmoHLR is copyrighted and is available for use, modification, and distribution under the terms of the GNU Affero General Public License. This ensures that the software remains accessible and modifiable by the community.