Exhibit 99.A

Exhibit A

Directors and Executive Officers of T-Mobile Worldwide Holding GmbH

The following table sets forth the names and business addresses with respect to Subsidiary’s Board of Management.  Unless otherwise noted, each member of the Board of Management is principally employed by T-Mobile International.

Michael Günther

c/o T-Mobile Worldwide Holding GmbH

Landgrabenweg 151

D-53227, Bonn, Germany

Dr. Uli Kühbacher

T-Mobile Deutschland GmbH

c/o T-Mobile International AG & Co KG

D-53227, Bonn, Germany

Frank Stoffer

c/o T-Mobile Worldwide Holding GmbH

Landgrabenweg 151

D-53227, Bonn, Germany

Wolfgang Kniese

c/o T-Mobile Worldwide Holding GmbH

Landgrabenweg 151

D-53227, Bonn, Germany

Directors and Executive Officers of T-Mobile International AG & Co KG

The following tables I and II set forth the names and business addresses with respect to T-Mobile International’s Board of Management and Supervisory Board.  Unless otherwise noted, each member of the Supervisory Board and Board of Management is principally employed by T-Mobile International AG & Co KG.

I.	Board of Management
	René Obermann c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany
	Hamid Akhavan c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany Mr. Akhavan is a citizen of the United States of America
	Uli Gritzuhn c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany
	Robert P. Dotson c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany Mr. Dobson is a citizen of the United States of America
	Michael Günther c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany
	Lothar A. Harings c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany
	Timotheus Höttges c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany

2

	Susan Swensen c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany Ms. Swensen is a citizen of the United States of America
	Thomas G. Winkler c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany Mr Winkler is a citizen of Austria
II.	Supervisory Board
	Kai-Uwe Ricke Chairman of Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113-Bonn, Germany
	Ado Wilhelm c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53227 Bonn, Germany
	Igor Pissarewsky T-Mobile Deutschland GmbH c/o T-Mobile International AG & Co KG Landgrabenweg 151 D-53175 Bonn, Germany
	Erwin Recktenwald T-Mobile Deutschland GmbH Landgrabenweg 151 D-53227 Bonn, Germany
	Christopher Schläffer Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113-Bonn, Germany
	Dr. Karl-Gerhard Eick Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113 Bonn, Germany

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Dr. Heinz Klinkhammar
Deutsche Telekom AG
Friedrich-Ebert-Allee 140
D-53113 Bonn, Germany

Joachim Preisig
Deutsche Telekom AG
Friedrich-Ebert-Allee 140
D-53113 Bonn, Germany

Dr. Eberhardt Rolle
Ministry of Finane
BMF Husarenstrasse 32
D-53117 Bonn, Germany

Lothar Schröder
c/o T-Mobile International AG & Co KG
Landgrabenweg 151
D-53227 Bonn, Germany

Stefan Heinze
T-Mobile International AG & Co KG
Landgrabenweg 151
D-53227 Bonn, Germany

Karin Hartmann
T-Mobile Deutschland GmbH
c/o T-Mobile International AG & Co KG
Landgrabenweg 151
D-53227 Bonn, Germany

Directors and Executive officers of Deutsche Telekom AG

The following tables I and II set forth the names and business addresses with respect to DTAG’s Board of Management and Supervisory Board.  Unless otherwise noted, each member of the Supervisory Board and Board of Management is principally employed by DTAG.

I.	Board of Management
	Kai-Uwe Ricke Chairman Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113 Bonn, Germany

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	Walter Raizner Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113 Bonn, Germany
	Dr. Karl-Gerhard Eick Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113 Bonn, Germany
	Dr. Heinz Klinkhammer Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113 Bonn, Germany
	René Obermann Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113 Bonn, Germany
II.	Supervisory Board
	Dr. Klaus Zumwinkel Chairman Chairman of the Board of Management of Deutsche Post AG Platz der Deutschen Post 1 D-53113 Bonn, Germany
	Franz Treml Deputy Chairman of ver. di Trade Union Vice Chairman of the Supervisory Board of Deutsche Telekom AG Paula-Thiede-Ufer 10 10179 Berlin, Germany
	Monika Brandl Member of Central Works Council at Deutsche Telekom AG c/o Deutsche Telekom AG Friedrich-Ebert-Allee 140 D-53113-Bonn, Germany
	Josef Falbisoner Head of ver.di District of Bavaria Schwanthaler Strasse 64 D-80336 Munchen, Germany

5

Dr. Hubertus von Grünberg
Member of the Supervisory Board at Continental Aktiengesellschaft
Vahrenwalder Strasse 9
D-30165 Hannover, Germany

Lothar Holzwarth
Chairman of the Works Council at Deutsche Telekom AG,
Business Customer Branch Office, South-Western District
Nauheimer Strass 98
D-70372 Stuttgar, Germany

Dr. sc. techn. Dieter Hundt
Managing Shareholder at Allgaier Werk GmbH and
President of the Confederation of German Employers’
Associations (BDA)
Umler Strasse 75
D-73066 Uhingen, Germany

Waltraud Litzenberger
Member of the Works Council at Deutsche Telekom AG
Technical Customer Service Branch Office, Central District
Bruckes 2-8
D-555545 Bad Kreuznach, Germany

Michael Löffler
Member of the Works Council at Deutsche Telekom AG
Networks Branch Office
Querstrasse 1-3
D-04103 Leipzig, Germany

Hans W. Reich
Chairman of the Board of Managing Directors, KfW
Bankengruppe
Palmengartenstrasse 5-9
D-60325 Frankfurt, Germany

Wolfgang Schmitt
Head of Liaison Office
T-Com Headquarters
Berliner Allee
D-79114 Freiburg, Germany

Dr. jur. Hans-Jürgen Schinzler
Chairman of the Supervisory Board of Münchner
Rückversicherung

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Königinstrasse 107
D-80802 Munchen, Germany

Dr. Klaus G. Schlede
Member of the Supervisory Board of Deutsche Lufthansa
Von-Gablenz-Strasss 2-6
D-50679 Koln, Germany

Michael Sommer
Chairman of the German Trade Union Federation (DGB)
Bundesverwaltung Berlin
Henriette-Herz-Platz 2
D-10178 Berlin, Germany

Ursula Steinke
Dehnkestrasse 34
D-24116 Kiel, Germany

Prof. Dr. h.c. Dieter Stolte
Director of “Zweite, Deutsche Fernsehen” retired
Douglasstrasse 14
D-14193 Berlin, Germany

Bernhard Walter
Former Chairman of the Board of Managing Directors at Dresdner
Bank AG
Jürgen Ponto-Platz 1
D-60301 Frankfurt, Germany

Wilhelm Wegner
Chairman of the Central Works Council at Deutsche Telekom AG
C/o Deutsche Telekom AG
Friedrich-Ebert-Allee 140
D-53113 Bonn, Germany

Dr. Wolfgang Reitzle
Chairman of the Executive Board of Linde AG
Abraham-Lincoln-Strasse 21
D-65189 Wiesbaden, Germany

Volker Halsch
State Secretary
Federal Ministry of Finance
Wilhemstraße 97
D-10117 Berlin, Germany

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