keywords: celtel stock float london exchange
text: Celtel set to list on London Stock Exchange (FT.com) FT.com - Celtel, a pan-African mobile phone operator, is to float on the London Stock Exchange early next year in a move that will value the stake of Mohamed Ibrahim, a former technical director of BT Cellnet and founder of the mobile group, at up to  pound;275m ( #36;496m).