| Iras Street | 19001 | Rest of Attica | Attica |
| Iridas Street | 13343 | Rest of Attica | Attica |
| Iridos Street | 19012 | Rest of Attica | Attica |
| Iridos Street | 19001 | Rest of Attica | Attica |
| Irodotou Street | 19015 | Rest of Attica | Attica |
| Irodotou Street | 19100 | Rest of Attica | Attica |
| Irodotou Street | 19600 | Rest of Attica | Attica |
| Irodotou Street | 19300 | Rest of Attica | Attica |
| Irodotou Street | 19200 | Rest of Attica | Attica |
| Iroon Polytechneiou Avenue | 19600 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 19100 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 19300 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 19018 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 13341 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 19200 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 19600 | Rest of Attica | Attica |
| Iroon Polytechneiou Street | 19500 | Rest of Attica | Attica |
| Iroon Square | 19200 | Rest of Attica | Attica |
| Iroon Street | 19100 | Rest of Attica | Attica |
| Iroon Street | 19008 | Rest of Attica | Attica |
| Iroon Street | 19500 | Rest of Attica | Attica |
| Isaakiou Angelou Street | 13342 | Rest of Attica | Attica |
| Isidorou Street | 13342 | Rest of Attica | Attica |
| Isiodou Street | 19008 | Rest of Attica | Attica |
| Isiodou Street | 13344 | Rest of Attica | Attica |
| Isionis Street | 13344 | Rest of Attica | Attica |
| Isminis Street | 19006 | Rest of Attica | Attica |
| Isminis Street | 19012 | Rest of Attica | Attica |
| Isminis Street | 19200 | Rest of Attica | Attica |
| Isminis Street | 19600 | Rest of Attica | Attica |
| Isokratous Street | 13344 | Rest of Attica | Attica |
| Isokratous Street | 19200 | Rest of Attica | Attica |
| Istiaias Street | 13341 | Rest of Attica | Attica |
| Istorias Agapis Street | 13461 | Rest of Attica | Attica |
| Iteon Street | 19001 | Rest of Attica | Attica |
| Ithakis Street | 19014 | Rest of Attica | Attica |
| Ithakis Street | 19006 | Rest of Attica | Attica |
| Ithakis Street | 13342 | Rest of Attica | Attica |
| Ithakis Street | 19300 | Rest of Attica | Attica |
| Ithakis Street | 19001 | Rest of Attica | Attica |