MTS Announces Subscriber Growth Numbers for February 2009

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that its consolidated subscriber base reached 91.77 million users on February 28, 2009.

During February, MTS’ consolidated subscriber base increased by 0.4 million subscribers with 340 thousand subscribers added in Russia.

Subscribers (mln) Feb 28, 2009 Jan 31, 2009 Growth
Subs Growth
%

Feb 29, 2008
Growth
Subs Growth
%
Total consolidated subscribers, end of period 91.77 91.40 0.37 0.4% 83.88 7.89 9.4%
Russia 64.83 64.49 0.34 0.5% 59.07 5.76 9.8%
Moscow and the
Moscow region 15.23 15.19 0.04 0.3% 13.87 1.36 9.8%
St. Petersburg and the Leningrad region 3.34 3.31 0.03 0.8% 2.86 0.48 16.7%
Rest of Russia 46.26 45.99 0.27 0.6% 42.35 3.91 9.2%
Ukraine 18.02 18.15 (0.13) (0.7%) 19.67 (1.65) (8.4%)
Uzbekistan 5.80 5.73 0.07 1.2% 3.34 2.46 73.7%
Turkmenistan 1.07 1.00 0.07 6.6% 0.40 0.67 166.6%
Armenia 2.05 2.03 0.02 0.9% 1.39 0.66 47.1%
MTS Belarus1 4.39 4.37 0.02 0.6% 3.90 0.49 12.7%


The above information is provided by www.mtsgsm.com