1. AT&T Inc.
2. Bharti Airtel Limited
3. C Spire
4. China Telecom Corporation Limited
5. Cricket Wireless LLC
6. EarthLink
LLC
7. Frontier Communications Parent Inc.
8. Hughes Network Systems
LLC
9. KT Corporation
10. Lumen Technologies Inc.
11. Reliance Jio Infocomm Ltd.
12. Rise Broadband
13. T-Mobile International AG
14. Telef?nica S.A.
15. Telekom Deutschland GmbH
16. Verizon
17. Viasat Inc.
18. Vodafone Limited
19. Xfinity by Comcast