It is still used extensively in banks and other financial transaction networks, as well as in many government agencies. In 1999 there were an estimated 3,500 companies "with 11,000 SNA mainframes." One of the primary pieces of hardware, the 3745/3746 communications controller, has been withdrawn from the market by IBM. IBM continues to provide hardware maintenance service and microcode features to support users. A robust market of smaller companies continues to provide the 3745/3746, features, parts, and service. VTAM is also supported by IBM, as is the NCP required by the 3745/3746 controllers.
It is still used extensively in banks and other financial transaction networks as well as in many government agencies In 1999 there were an estimated 3500 companies "with 11000 SNA mainframes" One of the primary pieces of hardware the 3745/3746 communications controller has been withdrawn from the market by IBM IBM continues to provide hardware maintenance service and microcode features to support users A robust market of smaller companies continues to provide the 3745/3746 features parts and service VTAM is also supported by IBM as is the NCP required by the 3745/3746 controllers