| Code | Name | Region |
|---|---|---|
| ATMRC | Marchtrenk | 4 |
| ATMAM | Margarethen Am Moos | 3 |
| ATMA5 | Maria Alm Am Steinernen Meer | 5 |
| ATMEN | Maria Enzersdorf | 3 |
| ATLEZ | Lienz | |
| ATLRR | Lieserbruecke | 2 |
| ATLZN | Liezen | |
| ATLLF | Lilienfeld | 3 |
| ATIEG | Limberg | 3 |
| ATLBU | Lindabrunn | 3 |
| ATLNZ | Linz | 4 |
| ATLSH | Litschau | 3 |
| ATBUG | Litzelsdorf | 1 |
| ATLOE | Lobendorf | 3 |
| ATLCU | Lochau | |
| ATLCH | Lochen | 4 |
| ATLOF | Lofer | 5 |
| ATLOB | Lohnsburg | |
| ATLDS | Loidesthal | 3 |
| ATLOI | Loimersdorf | |
| ATLPB | Loipersbach | 3 |
| ATLPD | Loipersdorf | 3 |
| ATLSD | Loosdorf | |
| ATLOS | Losenstein | 4 |
| ATLBE | Leiben | 3 |
| ATLEI | Leibnitz | |
| ATLP4 | Leithaprodersdorf | 1 |
| ATLUA | Lembach | 4 |
| ATLEN | Lend | |
| ATLGU | Lengau | |
| ATLGN | Lengenfeld | 3 |
| ATLZG | Lenzing | |
| ATLBN | Leoben | |
| ATLEO | Leobendorf | |
| ATLBD | Leobersdorf | |
| ATLDG | Leonding | |
| ATLPO | Leopoldsdorf (wien) | 3 |
| ATLTH | Leutasch | |
| ATLTS | Leutschach | 6 |
| ATLTD | Leutzmannsdorf | 3 |
| ATLIW | Lichtenau Im Waldviertel | 3 |
| ATLTG | Lichtenberg | 3 |
| ATNWR | Lichtenworth | 3 |
| ATLIB | Lieboch | 6 |
| ATLGE | Langenlebarn | 3 |
| ATLAG | Langenlois | |
| ATLGR | Langenrohr | 3 |
| ATLSN | Langenstein | |
| ATLGW | Langenwang | 6 |
| ATLZD | Langenzersdorf | 3 |