| Morali Gianni Street | 13342 | Rest of Attica | Attica |
| Morava Street | 19100 | Rest of Attica | Attica |
| Morfopoulou Panagioti Street | 19008 | Rest of Attica | Attica |
| Mornou Street | 19300 | Rest of Attica | Attica |
| Mornou Street | 13343, 13344 | Rest of Attica | Attica |
| Moschandrea Ch. Street | 19001 | Rest of Attica | Attica |
| Moschou Konstantinou Street | 19006 | Rest of Attica | Attica |
| Mourias Street | 13343 | Rest of Attica | Attica |
| Mouriki Athanasiou & Anastasiou Street | 19200 | Rest of Attica | Attica |
| Mouroutsou Michail Street | 13342 | Rest of Attica | Attica |
| Mourtzi Nikolaou Street | 19500 | Rest of Attica | Attica |
| Mousmoulias Street | 13343 | Rest of Attica | Attica |
| Mouson Street | 19014 | Rest of Attica | Attica |
| Mouson Street | 19012 | Rest of Attica | Attica |
| Mouson Street | 19008 | Rest of Attica | Attica |
| Mouson Street | 19600 | Rest of Attica | Attica |
| Mouson Street | 19001 | Rest of Attica | Attica |
| Mouson Street | 19001 | Rest of Attica | Attica |
| Mousourgou Mitropoulou Dimitri Street | 19500 | Rest of Attica | Attica |
| Mousourou Markou Street | 13343 | Rest of Attica | Attica |
| Moustakli Spyrou Street | 13343 | Rest of Attica | Attica |
| Moustakli Street | 19200 | Rest of Attica | Attica |
| Mouzakiou Street | 13341 | Rest of Attica | Attica |
| Mykalis Street | 19100 | Rest of Attica | Attica |
| Mykinon Street | 19100 | Rest of Attica | Attica |
| Mykinon Street | 13341 | Rest of Attica | Attica |
| Mykinon Street | 19300 | Rest of Attica | Attica |
| Mykonou Street | 19100 | Rest of Attica | Attica |
| Mykonou Street | 19001 | Rest of Attica | Attica |
| Mykonou Street | 19300 | Rest of Attica | Attica |
| Mykonou Street | 13341 | Rest of Attica | Attica |
| Mykonou Street | 19500 | Rest of Attica | Attica |
| Mylona Ioanni Street | 19300 | Rest of Attica | Attica |
| Mylopotamou Street | 19300 | Rest of Attica | Attica |
| Myrat Dimitriou Street | 13342 | Rest of Attica | Attica |
| Myrinas Street | 13341 | Rest of Attica | Attica |
| Myriokefalou Street | 13342 | Rest of Attica | Attica |
| Myrivili Strati Street | 13342 | Rest of Attica | Attica |
| Myrivili Street | 19006 | Rest of Attica | Attica |
| Myrivili Street | 19300 | Rest of Attica | Attica |