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**List        of RCN Subsidiaries and it’s States of Incorporation**

**EXHIBIT        21.1**

| **Entity                  Name**                                                              |   | ** ****Jurisdiction                  of Incorporation** |
|-----------------------------------------------------------------------------------------------|--------|--------------------------------------------------------------|
|                                                                                          |   |                                                         |
| RCN                  Corporation                                                              |   | ** **Delaware                                           |
|                                                                                          |   |                                                         |
| **RCN                  Corporation Subsidiaries:**** **                                  |   |                                                         |
|                                                                                          |   |                                                         |
| Brain                  Storm Networks, Inc.                                                   |   | California                                                   |
| RCN                  Entertainment, Inc.                                                      |   | Delaware                                                     |
| RCN                  Finance LLC                                                              |   | Delaware                                                     |
| RCN                  Financial Management, Inc.                                               |   | Delaware                                                     |
| RCN                  Internet Services, Inc.                                                  |   | Delaware                                                     |
| RCN                  Telecom Services, Inc.                                                   |   | Pennsylvania                                                 |
| RCN                  Telecom Services of Illinois, LLC                                        |   | Illinois                                                     |
| RFM                  2 LLC                                                                    |   | Delaware                                                     |
| RLH                  Property Corporation                                                     |   | New                  Jersey                                  |
| TEC                  AIR, Inc.                                                                |   | Delaware                                                     |
| UNET                  Holding, Inc.                                                           |   | Delaware                                                     |
|                                                                                          |   |                                                         |
| **RCN                  Entertainment, Inc. Subsidiaries:**                                    |   |                                                         |
|                                                                                          |   |                                                         |
| Hot                  Spot Productions, Inc.                                                   |   | New                  York                                    |
| ON                  TV, Inc.                                                                  |   | New                  York                                    |
|                                                                                          |   |                                                         |
| **RCN                  Internet Services, Inc. Subsidiary:**                                  |   |                                                         |
| RCN                  Telecom Services of Washington, D.C., Inc. (52%)                         |   | District                  of Columbia                        |
|                                                                                          |   |                                                         |
| **RCN                  Telecom Services of Massachusetts, Inc.                  Subsidiary:** |   |                                                         |
|                                                                                          |   |                                                         |
| RCN-BecoCom,                  Inc.                                                            |   | Massachusetts                                                |
|                                                                                          |   |                                                         |
| **RCN                  Telecom Services, Inc. Subsidiaries:**                                 |   |                                                         |
|                                                                                          |   |                                                         |
| RCN                  International Holdings, Inc.                                             |   | Delaware                                                     |
| RCN                  New York Communications, LLC d/b/a RCN Business Solutions                |   | New                  York                                    |
| RCN                  Telecom Services of Massachusetts, Inc.                                  |   | Massachusetts                                                |
| RCN                  Telecom Services of Philadelphia, Inc.                                   |   | Pennsylvania                                                 |
| RCN                  Telecom Services of Virginia, Inc.                                       |   | Virginia                                                     |
| RCN                  Telecom Services of Washington, D.C., Inc. (48%)                         |   | District                  of Columbia                        |
|                                                                                          |   |                                                         |
| **RCN                  Telecom Services of Illinois, LLC                  Subsidiaries:**     |   |                                                         |
|                                                                                          |   |                                                         |
| 21st                  Century Telecom Services, Inc.                                          |   | Delaware                                                     |
| RCN                  Cable TV of Chicago, Inc.                                                |   | Delaware                                                     |

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