**Exhibit 4.52**

 

Federal Supervisory Service for Communications

 

**AddendumNo. 3**

 

**toLicense No. 30267  (Account Series A 030169)**

**datedDecember 30, 2003**

 

“The conditions for the performance of activities in accordance withLicense No30267” shall be revised to read as follows:

 

1.             MobileTeleSystems OJSC (the Licensee) shall be obliged to keep the term of thisLicense.

 

2.             TheLicensee shall be obliged to commence the provision of communication servicesunder this License no later than on December 30, 2005.

 

3.             TheLicensee shall be obliged to provide mobile radiophone communication services(GSM-1800 networks) in accordance with this License in the territory of Kabardino-Balkaria  Republic.

 

4.             Inaccordance with this License, the Licensee shall be obliged to ensureprovisioning a subscriber with*:

 

a)     access tothe network of the Licensee;

 

b)    connectionson the Licensee’s mobile radiophone communication network for receiving(transferring) voice and non-voice information ensuring the communicationcontinuity while rendering services irrespective;

 

c)     connectionswith subscribers and (or) users of fixed public-switched telephone networks;

 

d)    possibilityof using GSM-1800 mobile radiophone communication network while being outsidethe territory specified in the License;

 

e)     access totelematic communication services and data transmission services, except fordata transmission for the purpose of voice data transfer;

 

f)     access tothe information and directory-inquiry service;

 

g)    possibilityof making free twenty-four-hour calls to emergency services.

 

5.             TheLicensee shall be obliged to render communication services in accordance withrules of rendering communication services approved by the Government of theRussian Federation;

 

6.             Atrendering communication services, the Licensee shall be obliged to observe therules of connection and interaction of electrical communication networks,approved by the Government of the Russian Federation, when connecting theLicensee’s mobile radiophone communication network to the public-switchednetwork, connecting the Licensee’s mobile

 

----

 

radiophone communication network to other communication networks,accounting and transferring the traffic in the Licensee’s mobile radiophonecommunication network, accounting and transferring the traffic from/to thecommunication networks of other operators.

 

7.             ThisLicensee has been issued based on results of considering the application forgranting a license without tendering (auction, competition). The licenserequirements for the Licensee’s discharge of obligations undertaken by theLicensee when participating in tenders (auction, competition) to obtainrespective license have not been established.

 

8.             TheLicensee shall, in the period of rendering the services under this License,adhere to the terms and conditions as set at the moment of frequenciesallocation and radio frequency or radio frequency channel assignment.

 

9.             TheLicensee shall have available the communications network management system thatconforms to the standards applied to communications network management systems,as prescribed by the Federal Executive Body acting in telecommunications.

 

10.           TheLicensee, when conducting operational-investigative activities, shall beobliged to adhere to the requirements to networks and means of communication,as prescribed by the Federal Executive Body and approved by the authorizedstate bodies, and to take measures to prevent the disclosure of organizationalor tactical techniques of conducting of the above.

 

----

*Rendering the services under this License can entail rendering otherservices, which are technically integrated into mobile radiophone services andare aimed at improvement of their customer value, provided no additionallicense is required for this purpose.

 
| **Deputy Manager,**                                |       |               |
|----------------------------------------------------|------------|--------------------|
| **Federal Supervisory Service for Communications** | ** ** | **S. A. Malyanov** |
| ** **                                         | ** ** | ** **         |
| ** **                                         | ** ** | ** **         |
| ** **                                         | 09.02.2007 |

 

----