The flight numbers of Shenzhen Airlines will change to four digits from October 31, as part of nationwide unification of flight codes.

The codes will still begin with the airline code "ZH."

The airline is among those using three-digit flight numbers, who have been ordered by the state civil aviation authorities to change.

The number "9" will be added in front of the three digits of the code numbers of flights originating in Shenzhen. Codes for flights from Wuxi, Nanning and Guangzhou will be changed completely.

(Shenzhen Daily October 15, 2004)