| Key | Value |
| colour | #FF6319 |
| date_on | 2006-08-13 |
| date_preversion_on | 2003-08-18 |
| end_date | 2023-12-30 |
| from | Itäkeskus (M) |
| from:fi | Itäkeskus (M) |
| from:sv | Östra centrum (M) |
| headway:evening | 00:16 |
| headway:evening_peak | 00:05 |
| headway:midday | 00:10 |
| headway:morning_peak | 00:03 |
| headway:sunday | 00:15 |
| interval:saturday | 10 |
| interval:saturday:night | 30 |
| interval:sunday | 11 |
| interval:sunday:night | 30 |
| name:fi | 550 Itäkeskus (M)-Keilaniemi (M) |
| name:sv | 550 Östra centrum (M)–Kägeludden (M) |
| network | HSL |
| network:wikidata | Q473211 |
| network:wikipedia | fi:Helsingin seudun liikenne |
| operator | Helsingin Bussiliikenne Oy |
| public_transport:version | 2 |
| ref | 550 |
| to | Keilaniemi (M) |
| to:fi | Keilaniemi (M) |
| to:sv | Kägeludden (M) |
| type | was:route |
| was:route | bus |