|                                                                                       |
|---------------------------------------------------------------------------------------|
|                                                                                       |  |
| Exhibit 21.1                                                                          |
| DASAN Zhone Solutions, Inc.                                                           |
| List of Subsidiaries                                                                  |
| DASAN Zhone Solutions, Inc. had the following subsidiaries at December 31, 2016: |
|                                                                                  |   |
| Name                                                                                  | Organized under the laws of |
| Ark Electronic Products, Inc.                                                         | Florida |
| Astarte Fiber Networks, Inc.                                                          | Colorado |
| DASAN Network Solutions, Inc.                                                         | United States |
| DASAN Network Solutions, Inc. (Korea)                                                 | Korea |
| DASAN Network Solutions, Japan Co., Ltd. (Formerly: HandySoft Japan Co., Ltd.)        | Japan |
| DASAN Vietnam Co., Ltd.                                                               | Vietnam |
| Osicom Technologies Europe Limited                                                    | United Kingdom |
| Paradyne Canada, LTD                                                             | Canada |
| Paradyne Corporation                                                             | Delaware |
| Paradyne Finance Corp.                                                           | Delaware |
| Paradyne Networks, Inc.                                                               | Delaware |
| Paradyne Worldwide Corporation                                                        | Delaware |
| Premisys Communications, Inc.                                                         | Delaware |
| Premisys Communications Ltd.                                                          | United Kingdom |
| R-Net International, Inc.                                                             | Nevada |
| Sciteq Communications, Inc.                                                           | Nevada |
| Simpulan Mutiara Sdn. Bhd. ***                                                        | Malaysia |
| Sorrento Networks Corporation                                                         | Delaware |
| Sorrento Networks Europe SA                                                           | Belgium |
| Sorrento Networks GmbH *                                                              | Germany |
| Sorrento Networks, SA                                                                 | France |
| Sorrento Valley Real Estate Holdings, LLC                                             | California |
| Xybridge Technologies, Inc.                                                           | Texas |
| Zhone AB                                                                              | Sweden |
| Zhone International Ltd.                                                              | Cayman Islands |
| Zhone International Limited                                                      | UK |
| Zhone Technologies Australia PTY LTD **                                               | Australia |
| Zhone Technologies B.V.                                                               | Netherlands |
| Zhone Technologies Campus, LLC                                                        | California |
| Zhone Technologies De Argentina SRL                                                   | Argentina |
| Zhone Technologies de Colombia Limitada                                               | Colombia |
| Zhone Technologies do Brasil LTDA                                                     | Brazil |
| Zhone Technologies GMBH                                                               | Germany |
| Zhone Technologies, Inc.                                                              | Canada |
| Zhone Technologies International, Inc.                                                | Delaware |
| Zhone Technologies KK                                                                 | Japan |
| Zhone Technologies Limited                                                            | Hong Kong |
| Zhone Technologies Ltd.                                                               | United Kingdom |
| Zhone Technologies Pte. Ltd.                                                          | Singapore |
| Zhone Technologies S. de R.L. de C.V.                                                 | Mexico |
| Zhone Technologies S.R.L.                                                             | Italy |
| ZTI Merger Subsidiary III, Inc.                                                       | Delaware |
| Zhone Technologies, SA (PTY) LTD                                                      | South Africa |