| Country | Country Code | Required Units | Supported Network |
| Macao | +853 | 5.39 | ALL |
| Macedonia | +389 | 5.06 | ALL |
| Madagascar | +261 | 5.39 | ALL |
| Malawi | +265 | 5.39 | ALL |
| Malaysia | +60 | 5.39 | ALL |
| Maldives | +960 | 3.85 | ALL |
| Mali | +223 | 4.18 | ALL |
| Malta | +356 | 4.18 | ALL |
| Mauritania | +222 | 6.05 | ALL |
| Mauritius | +230 | 3.85 | ALL |
| Mayotte | +262 | 0.00 | ALL |
| Mexico | +52 | 0.00 | ALL |
| Micronesia | +691 | 0.00 | ALL |
| Moldova | +373 | 15.40 | ALL |
| Monaco | +377 | 6.93 | ALL |
| Mongolia | +976 | 6.93 | ALL |
| Montenegro | +382 | 4.62 | ALL |
| Morocco | +212 | 10.78 | ALL |
| Mozambique | +258 | 22.00 | ALL |
| Myanmar | +95 | 0.00 | ALL |
