Find Phone number, Location Address and all other information of A Level Colleges in Karachi British Overseas School Karachi on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-21-111267267, or you can visit their location in person, address location is: AL 7-8, 14th & 15th Lane, Off Khayaban-e-Hilal, Phase VII, DHA, Karachi..