# Overview ### Erfurt ATC Stations
**Station** | **Frequency** | **Login** | **SI** | **Remark** |
**ATIS** | 133.455 | EDDE\_ATIS | ADE | -- |
**Ground** | 121.755 | EDDE\_GND | DEG | to be opened **only** after Tower is staffed |
**Apron** | 121.905 | EDDE\_A\_GND | DEA | **event only:** not to be staffed unless part of a rostered event |
**Tower** | 121.155 | EDDE\_TWR | DET | **primary** |
**Thüringen Low Süd** (Arrival) | 126.175 | EDDP\_TRS\_APP | TRS | -- |