[1] When the bus system of Thessaloniki was first established in 1957 all lines were numbered from the eastern to the western routes starting with 1.
However, after 1979 the rest of the lines were numbered based on the date of their creation.
Operatings hours and frequencies are based on OASTH's summer everyday schedule.
NOTE: the operating hours and frequencies may defer during the weekend.
9:10 (sunday) (sat-sun) In 2023, the Transport Authority of Thessaloniki started operating 4 special temporary express lines until the "Flyover" road of Thessaloniki was complete, presumably in 2028.