# open5gs/open5gs

Open5GS is a C-language Open Source implementation for 5G Core and EPC, i.e. the core network of LTE/NR network (Release-19)

Repository: https://github.com/open5gs/open5gs
Canonical: https://ross.abutalabs.com/products/open5gs
Homepage: https://open5gs.org
Language: C
License: AGPL-3.0
License Family: copyleft
Topics: 5g, 5gc, 4g, epc, lte, core, network, open5gs, nr, 3gpp
Last push: 2026-08-21T08:32:12+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 65, longevity 100
- inputs: {"age_days": 3500, "days_push": 12, "days_rel": 74, "gap_med": 110, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2700, forks 1092 (observed 2026-08-28T04:07:11.326205+00:00)

## What it is
Open5GS is an open-source C-language implementation of the 5G Core (5GC) and Evolved Packet Core (EPC), the core network of LTE and NR mobile networks per 3GPP Release-19. It lets operators, researchers, and hobbyists run their own 4G/5G mobile core network on commodity hardware.

## Use cases
- set up a private 5G SA core network for testing
- run an LTE/EPC core for a private mobile network
- simulate a 5G core with UERANSIM for research
- deploy VoLTE with IMS and Kamailio
- test 5G roaming with SEPP in a lab
- load test and benchmark UPF performance
- deploy a cloud-native 5G core on Kubernetes

## When to choose
- you need a self-hosted 4G/5G core network implementation
- you are building a private LTE or NR network for lab, research, or deployment
- you want an open-source 3GPP Release-19 compliant core with active community support

## When to avoid
- you need a production carrier-grade core with vendor support and commercial licensing
- you only need a radio access network simulator without a core
- you want a simple network tool rather than a full telecom core system

## Facets
- artifact type: application
- maturity: active
- function: networking, self-hosted, developer-tools
- domain: networking, self-hosted, iot
- platform: bsd, cpp
- tags: 5g-core, epc, lte, nr, 3gpp, mme, amf, smf, upf, private-mobile-network, telecom, telecommunications, linux, macos, docker, kubernetes

## Member repositories
- open5gs/open5gs (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:11.326205+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:16:04.958259+00:00, confidence not recorded.
  - readme: https://github.com/open5gs/open5gs (fetched 2026-08-28T04:07:11.326205+00:00, sha 920bedb1d035)
  - homepage: https://open5gs.org (fetched 2026-08-29T09:59:06.225696+00:00, sha 6a1a0eec79c7)
  - site_page: https://open5gs.org/open5gs/docs (fetched 2026-08-29T09:59:06.234579+00:00, sha 4cc0736d69d8)
- Data as of 2026-08-30T08:39:29.467469+00:00.