[15][16][17][18][19] On October 2, 2007, MegaFon launched for operation the first Russian fragment of the third generation network in IMT-2000/UMTS (3G) at the territory of Saint Petersburg and Leningrad region.

[22][23] On March 16, 2009, MegaFon founded a virtual mobile network operator "PROSTO" (Just for Communication) on the basis of the Stolichny Branch.

[24][25][26] On July 1, 2009, reorganization was completed, and now mobile communication services in Russia are provided by the North-West, Stolichny, Kavkaz, Center, Volga, Ural, Siberia and Far East branches of MegaFon OJSC.

[29][30][31] Since March 1, 2010, Ostelecom CJSC started to provide telecom services in the Tskhinvali region (occupied territory of Georgia) under MegaFon brand.

[32][33][34][35] In June 2010, MegaFon acquired 100% shares of Synterra company, which was a move to strengthen network infrastructure and enhance the positions in the markets of long-distance communication, fixed and mobile broadband access to the Internet, as well as convergence services.

[36][37] Three months later, the extraordinary General Shareholders Meeting of MegaFon unanimously approved acquisition of 100% shares of PeterStar CJSC from Synterra.

[41][42][43] Based on Q3 2010 results MegaFon became the leader in the revenue share from value-added services (VAS) among the Big Three operators.

[44][45] As a result of 2010, MegaFon became the Top 2 operator (after MTS) in number subscribers among the Russian cellular communication providers.

[29][30][31] In November 2011, MegaFon signed a partnership agreement with Scartel on joint development of the Fourth Generation networks LTE (Long Term Evolution) in Russia.

[63] The same month MegaFon CEO Ivan Tavrin obtained a 12% stake of VK.com, Russia's most popular social networking website, from VK's founder Pavel Durov.

[65] In the same month, MegaFon commercially launched fragment network LTE Advanced (LTE-A) within the Garden Ring in Moscow.

[65] In April 2023 Megafon was sanctioned by USA on basis of being part of USM company, belonging to Russian billionaire Alisher Usmanov.

[79][80] On 28 January 2021, Liberal Democrat MPs called for sanctions to be imposed on Russian oligarchs, linked to British football clubs (including MegaFon executive Alisher Usmanov and Chelsea owner Roman Abramovich) in response to the poisoning of Russian Opposition figure Alexei Navalny.