March 3 (Reuters) - Russia's biggest mobile operator MTS
MTSS.MM says:
* Q4 net income rose 3.9% year on year to 13.6 billion roubles;
* Q4 revenues at 143.7 billion roubles ($1.22 billion), up 7.5% year on year.
Further company coverage: MTSS.MM
($1 = 117.6200 roubles)
(Reporting by Moscow Newsroom)