| Code | Name | Region |
|---|---|---|
| SILZM | Poljcane | 113 |
| SIZP9 | Polzela | 190 |
| SIPON | Ponikva | 120 |
| SIPOW | Portoroz | |
| SINCV | Nova Cerkev | 139 |
| SINOG | Nova Gorica | |
| SINOV | Nova Vas | |
| SINMO | Novo Mesto | |
| SIOBR | Obrezje | 9 |
| SIHKO | Obrov | 35 |
| SIO86 | Odranci | 86 |
| SIOPN | Oplotnica | 113 |
| SIORZ | Ormoz | |
| SIRIB | Ortnek | 104 |
| SIOSI | Osilnica | 88 |
| SIOTO | Otocec | 85 |
| SIP93 | Ozbalt | 93 |
| SIP89 | Pernica | 89 |
| SIPPM | Pesnica Pri Mariboru | 89 |
| SIPTV | Petrovce | |
| SIPIR | Piran | |
| SILZG | Pivka | 91 |
| SIPLA | Planina | 94 |
| SIPPS | Planina Pri Sevnici | 120 |
| SIMET | Metlika | |
| SIMZA | Mezica | |
| SIMDP | Miklavz Na Dravskem Polju | 70 |
| SISO8 | Miklavz Pri Ormozu | 87 |
| SILZK | Miren | 75 |
| SIMRN | Mirna | 157 |
| SIMIP | Mirna Pec | 85 |
| SIMIS | Mislinja | 76 |
| SIKG5 | Mojstrana | 53 |
| SIST3 | Mokronog | 130 |
| SIMOR | Moravce | 77 |
| SIMVT | Moravske Toplice | 78 |
| SIMNS | Most Na Soci | 128 |
| SIM43 | Motnik | 43 |
| SIM79 | Mozirje | 79 |
| SIMUS | Murska Sobota | |
| SIMUT | Muta | 81 |
| SINKO | Naklo | |
| SINAZ | Nazarje | 83 |
| SINGO | Notranje Gorice | 8 |
| SILND | Lovrenc Na Dravskem Polju | 45 |
| SILNP | Lovrenc Na Pohorju | 108 |
| SIL67 | Luce | 67 |
| SILCJ | Lucija | |
| SISLV | Lukovica Pri Domzalah | |
| SILUK | Lukovica Pri Domzalah | 68 |