Turkcell Files its 2010 Annual Report on Form 20-F

ISTANBUL, April 22, 2011 - Turkcell (NYSE: TKC, ISE: TCELL), announced that it has filed
its Annual Report on Form 20-F for the year ended December 31, 2010 with the
United States Securities and Exchange Commission on April 20, 2011. The
Company's Form 20-F and complete audited financial statements can be found at
www.turkcell.com.tr/en.

Hard copy versions of the complete audited financial statements are
available free of charge upon request from Turkcell's Investor Relations
Department at investor.relations@turkcell.com.tr and/or 0090-212-313-1888.

www.turkcell.com.tr

About Turkcell

Turkcell is the leading communications and technology company
in Turkey with 33.5 million subscribers and a market share of approximately
54% as of 2010 (Source: Operator's announcements). Turkcell is a leading
regional player, with market leadership in five of the nine countries in
which it operates with its approximately 60.4 million subscribers as of 2010.
Turkcell reported TRY9.0 billion ($6.0 billion) net revenue and its total
assets reached TRY15.1 billion ($9.8 billion) as of 2010. Turkcell covers 82%
of the Turkish population through its 3G and covers 99.07% of the Turkish
population through its 2G technology supported network. Turkcell has become
one of the first operators among the global operators to have implemented
HSDPA+ and to reach to 42.2 Mbps speed with HSPA multi carrier solution.
Turkcell has been listed on the NYSE and the ISE since July 2000 and is the
only NYSE-listed company in Turkey. 51.00% of Turkcell's share capital is
held by Turkcell Holding, 0.05% by Çukurova Holding, 13.07% by Sonera Holding
and 1.19% by others while the remaining 34.69% is free float. Read more at
www.turkcell.com.tr

    For further information please contact Turkcell

    Corporate Affairs
    Koray Öztürkler, Chief Corporate Affairs Officer
    Tel: +90-212-313-1500
    Email: koray.ozturkler@turkcell.com.tr

    Investors:

    Nihat Narin, Investor and International
    Media Relations
    Tel: +90-212-313-1244
    Email: nihat.narin@turkcell.com.tr
    investor.relations@turkcell.com.tr

    Media:

    Filiz Karagul Tuzun,
    Corporate Communications
    Tel: +90-212-313-2304
    Email: filiz.karagul@turkcell.com.tr

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