I’ve just checked the new Emirates winter timetable and found out that several flight numbers have been changed. Does anyone know why? I know they already did something similar some years back in order to relate certain blocks of numbers to geographic regions (e.g. 000 and 100 for Europe/200 for North America/300 for East Asia/400 for Australia/500 for India-Bangladesh-SriLanka/600 for Pakistan/700 for Africa/800 and 900 for Middle East/Gulf).
This time it's different, they only changed the numbers by two or four digits, see the following:
EK089 changed to EK087 (Zurich)
EK125 changed to EK127 (Vienna)
336 to 338 (Dhaka-Kuala Lumpur)
384 to 386 (Bangkok-Hong Kong)
430 to 432 (Singapore-Brisbane-Auckland)
540 to 544 (Chennai)
610 to 612 (Islamabad)
634 to 636 (Peshawar)
731 to 733 (Khartoum)
781 to 783 (Lagos-Accra)
973 to 977 (Teheran)
What’s the purpose of this?