| Relationships | Role | Relationship Start | Relationship End |
| Banco Nacional De Mexico, S.A. | Parent | 6/30/2007 | |
| Banco Nacional De Mexico, S.A. | Parent | 6/30/2005 | 6/29/2007 |
| Banco Nacional De Mexico, S.A. | Parent | 8/1/2001 | 8/31/2001 |
| Inteligia, S.A. | Subsidary | 8/1/2001 | 12/30/2001 |
| Avantel, S.A. | Subsidary | 8/1/2001 | 8/31/2001 |
| Avantel Servicios Locales, S.A. | Subsidary | 8/1/2001 | 8/31/2001 |
| Infraestructura De Telecomunicaciones, S.A. De C.V. | Subsidary | 8/1/2001 | 8/31/2001 |
| Planeacion De Recursos Humanos, S.A. De C.V. | Subsidary | 8/1/2001 | 8/31/2001 |