sysmocom SIM / USIM / ISIM cards


The sysmoISIM-SJA2 is an ETSI/3GPP standards-compliant SIM/UICC/USIM/ISIM/HPSIM card. It supports both the 3GPP MILENAGE authentication algorithm, as well as the COMP128 family. It is the successor to our earlier (now EOL) sysmoUSIM-SJS1.

The cards IMSI, K and OPC values as well as the contents of any file in the filesystem can be freely programmed/changed, if you purchase one of the variants including the ADM keys for the cards.

The SIM card is primarily used with the Osmocom cellular infrastructure , but often also used with other cellular network infrastructure implementations such as open5gs, OpenAirInterface, srsRAN or others.

For more information please refer to the user manual which includes a card specification as well as examples on how to use and re-program the cards.

The GlobalPlatform specification is supported by this card allowing to build SIM Toolkit Applications. An easy to compile and loadable example is provided by us. We can provide additional development services for SIM Toolkit programming.

Order the sysmoISIM-SJA2 in small volume directly from our webshop. For quantity orders (1000 cards and up), we offer custom card programming, custom card printing.

NOTICE: This product is for operators of public or private mobile networks and the research community. As a regular subscriber of mobile networks, you cannot clone another identity to this card, as you do not know the secret identity (K,OPC) of your original card!

We can also supply any other type of SIM, UICC, USIM, RUIM/CSM, ISIM or HPSIM cards with customized card profiles, as well as card profile development services. Custom cards typically ship from a MOQ of 1,000 units up.