Asia-Places.com has listed approx 5 Telecommunications service providers in 34450 Sarıyer/İstanbul. Some of the Top rated Telecommunications service providers in 34450 Sarıyer/İstanbul are- Vodafone Cep Merkezi, Vodafone, Vodafone R4C, TÜRK TELEKOM - EKOL İLT. OTO. EML.VE ELECT. SAN. VE TIC LTD ŞTI & TÜRK TELEKOM - EKOL İLT. OTO. EML.VE ELECT. SAN. VE TIC LTD ŞTI.