There are cases when mobile network codes are occupied not by mobile carriers, but government structures (military, railway, landline phone authorities), fixed and broadband internet providers, scientific organisations, etc. Some MCCMNCs belong to obsolete legal entities, acquired by other market players or went to bankruptcy, but codes are kept for a certain period for legacy purposes.
| Brand name | au (エーユー) |
|---|---|
| Other names | au by KDDI, Okinawa Cellular |
| Користувачі мобільної мережі | 50 638 000 мобільних користувачів (report dated 26/12/2024) |
| MCCMNC code | 44050 |
| Mobile network code (MNC) | 50 |
| Mobile country code (MCC) | 440 |
| Other MCCMNCs | 44051, 44052, 44053, 44054, 44070, 44071, 44072, 44073, 44074, 44075, 44076, 44078 |
| Mobile Number Portability (MNP) | No |
| Web |
