| Subject | English | German |
| comp., MS | main account code segment | Kontocode-Hauptsegment (A segment of a general ledger account code that corresponds to the type of account (for example, cash, sales, or travel expense)) |
| snd.rec. | main code | Hauptcode |
| tel. | main station identification code | Hauptanschluß-Kennzeichen (for non-DDI) |
| IT | main subject code | Hauptsystemort |
| IT | main-station code | Hauptanschlußrufnummer |