| M | |
| MACAU | 00 853 |
| MACEDONIA | 00 389 |
| MADAGASCAR | 00 261 |
| MAJORCA | (Please see Spain) |
| MALAWI | 00 265 |
| MALAYSIA | 00 60 |
| MALDIVES | 00 960 |
| MALI | 00 223 |
| MALTA | 00 356 |
| MARSHALL ISLANDS | 00 692 |
| MARTINIQUE | 00 596 |
| MAURITANIA | 00 222 |
| MAURITIUS | 00 230 |
| MAYOTTE | 00 269 |
| MEXICO | 00 52 |
| MICRONESIA | 00 691 |
| MINORQA | (Please see Spain) |
| MOLDOVA | 00 373 |
| MONACO | 00 377 |
| MONGOLIA | 00 976 |
| MONTSERRAT | 00 1 664 |
| MOROCCO | 00 212 |
| MOZAMBIQUE | 00 258 |
| MYANMAR | 00 95 |