Carriers:

1. Cingular Wireless LLC n/k/a AT&T Mobility LLC

2. T-Mobile USA, Inc.

3. SRT Communications, Inc.

4. IT&E Overseas, Inc.

5. Mid-Rivers Telephone Cooperative, Inc.

6. Copper Valley Wireless, Inc.

7. Silver Star Telephone Company, Inc.

8. SKT Wireless, LLC

9. Etex Communications, LP d/b/a Etex Wireless

10. Syringa Wireless, LLC

11. NTCH, Inc. d/b/a Cleartalk

12. Thumb Cellular LLC

13. South Central Communications, Inc.

14. Texas RSA 7B3, L.P. d/b/a Peoples Wireless

15. Panhandle Telecommunication Systems, Inc.

16. Inland Cellular Telephone Company

17. RSA 1 Limited Partnership (d/b/a Cellular 29 Plus)

18. Mohave Cellular Limited Partnership

19. Cellco Partnership d/b/a Verizon Wireless

20. Farmers Mutual Telephone Company

21. California RSA No. 3 Limited Partnership Global State Cellular

22. CC Communications

23. Leaco Rural Telephone Cooperative

24. Personal Communication Devices LLC

25. Illinois Valley Cellular

Hardware (Cell Phones and Infrastructure) Vendors:

26. Motorola, Inc.

27. Nokia Corporation

28. Samsung Electronics Co., LTD.

29. Ericsson AB and LM Ericsson Telefonaktiebolaget

30. LG Electronics Inc.

31. Coby Electronics Corporation

32. Sony Ericsson Mobile Communications AB

33. Casio Hitachi Mobile Communications Co., Ltd.

34. Plantronics, Inc.

35. Sennheiser Communications A/S

36. Pantech Co. Ltd. and Pantech & Curitel Communications, Inc.

37. Panasonic Corporation

38. Sprint Nextel Corporation, Sprint Spectrum L.P. and Sprint Spectrum Equipment Company, L.P.

39. Sanyo North America Corporation, and its parent company, Sanyo Electric Co., Ltd.

40. Kyocera Communications, Inc.

41. Palm, Inc.