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| Name | Jurisdiction | | |
| 8x8 International Holdings Co. | Delaware | | |
| | | |
| LeChat, Inc. | Delaware | | |
| 8x8 Romania Holdings, LLC | Delaware | | |
| Optoriot Asia Holdings, Inc. | Delaware | | |
| | | |
| | | |
| 8x8 International, Inc. | Canada | | |
| 8x8 International Pty Ltd. | Australia | | |
| | | |
| 8x8 UK Limited | United Kingdom | | |
| | | |
| API Telecom Limited | United Kingdom | | |
| 8x8 International SRL | Romania | | |
| 8x8 Japan GK | Japan | | |
| 8x8 Servicios Mexico, S.R.L. de C.V. | Mexico | | |
| Blue Magpie | China | | |
| 8x8 International Pte. Ltd. | Singapore | | |
| PT Wavecell Solutions Indonesia | Indonesia | | |
| Wavecell Inc. | Philippines | | |
| Wavecell Limited | Thailand | | |
| Vietnam Innovation Lab Company Limited | Vietnam | | |
| WVL Company Limited | Vietnam | | |
| 8x8 India Private Ltd. | India | | |
| Fuze, Inc. | Delaware | | |
| Fuze Australia Pty Limited | Australia | | |
| Fuze Europe B.V. | Netherlands | | |
| Fuze Canada Inc. | Canada | | |
| Fuze Switerland Sárl | Switzerland | | |
| Fuze Europe (UK) Limited | United Kingdom | | |
| Fuze Europe GmbH | Germany | | |
| Thinking Phone Networks EOOD | Bulgaria | |