West Azerbaijan's codes are 17, 27 and 37. In public cars, Taxis and Governal cars the letter is always the same. But in simple cars this letter (ب) depends on the city.
17 edit
17 is Orumieh county's code and all of the letters are for Orumieh.
 ۱۲  ۳۴۵
|
 ۱۷ |
27 edit
| ۱۲ ۳۴۵
|
۲۷ |
| City | Letter |
|---|---|
| Khoy, chaypareh, |
ب |
| Mahabad | ج |
| Maku Poldast Showt |
د |
| Salmas | س |
| Naqadeh | ص |
| Miandoab | ط |
| Takab | ق |
| Shahindej | ل |
| Sardasht | م |
| Bukan | ن |
| Piranshahr | و |
| Chaldoran | هـ |
| Oshnavieh | ى |
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