CHICAGO--(BUSINESS WIRE)--Fitch Ratings has affirmed Colombia Telecomunicaciones S.A. E.S.P.'s (Coltel) foreign and local currency Issuer Default Ratings (IDRs) at 'BB'. Fitch has also affirmed the company's USD750 million senior notes due 2022 and USD500 million subordinated perpetual bond at 'BB' and 'B+', respectively. The Rating Outlook on the IDRs is Stable.] KEY RATING DRIVERS Coltel's ratings reflect its fully integrated operation with nation-wide network coverage and diversified service