Only the current version so far — new entries appear as the app ships updates.
SIMナース - MVNO向け通信トラブル診断アプリ is a tools app by NetVision Co.,Ltd. Shizuoka Japan with 100+ downloads (about 275 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “MVNO is the app to diagnose and resolve the communication problems in the SIM”