usim

An open source 3GPP LTE implementation.

Osmocom SIM card tracer, v2.0; mirror of https://gitea.osmocom.org/sim-card/simtrace2

Wiki for overriding IMS settings to enable VoLTE/VoWiFi using Carrier Privileges in Android phones

Onomondo UICC - a software implementation of SIM/UICC/USIM

Osmocom remote SIM software suite; mirror of https://gitea.osmocom.org/sim-card/osmo-remsim

utility for sysmocom SIM card products; read-only mirror of https://gitea.sysmocom.de/sysmocom/sysmo-usim-tool

Osmocom CCID reader firmware; mirror of https://gitea.osmocom.org/sim-card/osmo-ccid-firmware

USIM, EDITOR, IMSI, ICCID, MCC/MNC, SPN, GID1, GID2

Onomondo SoftSIM integration for Quectel LTE UNISOC SDK

GSM data generator for creating synthetic telecom data that supports operator-specific logic, customizable templates, and personalization data.

Little tool for reading or writing GSM phonebooks as CSV to/from a USIM card with an PC/SC compatible reader.

Native macOS port of GRSIMWrite 4.4.10 / Port macOS nativo do GRSIMWrite — SIM GSM/USIM writing & formatting over PC/SC, all 42 card families. Python + pyscard, no Windows.

Smart Card Programmer is a cross-platform tool designed to read, write, and manage programmable SIM/USIM cards and other ISO 7816-compliant smart cards.

A Python-based USIM file system emulator implementing MF/DF/EF hierarchy, APDU parsing, command routing, and a TCP-based test transport for learning and experimentation with ISO 7816 / 3GPP USIM concepts.