| Pos | Name | Country | stamps | Since |
|---|---|---|---|---|
| 179 | Flores Jose | México | 79 | 14/04/2009 |
| 474 | Flores Sergio | Argentina | 14 | 29/04/2012 |
| 246 | Flores Monica | Argentina | 176 | 12/09/2012 |
| 140 | Flores Rivera Isidro | España | 298 | 07/06/2011 |
| 640 | Foncea Gabriel | Chile | 2 | 30/04/2011 |
| 533 | Forero Alejandro | Colombia | 4 | 23/01/2012 |
| 505 | Fornas Riera Esther | España | 13 | 01/09/2013 |
| 674 | Fraile Julio | España | 4 | 13/03/2011 |
| 409 | Franco Dabramo | Argentina | 7 | 13/07/2010 |
| 483 | Freire Vitta Carlos Augusto | Colombia | 4 | 24/05/2012 |
| 117 | Freud Sigmund | España | 378 | 26/06/2012 |
| 496 | Frias Morales J. Jesus | México | 28 | 26/01/2012 |
| 855 | Frs Assad | Marruecos | 1 | 20/04/2017 |
| 616 | Fuentes Pablo | Chile | 2 | 24/10/2009 |
| 702 | Fuentes Angel | España | 1 | 28/08/2010 |
| 623 | Fuentes Eduardo | Ecuador | 4 | 14/03/2017 |
| 306 | Fuertes Santiago | España | 32 | 06/10/2010 |
| 735 | Fürst Lydia | España | 4 | 13/08/2015 |
| 506 | G Adolfo | España | 8 | 14/11/2008 |
| 249 | G Eduardo | Argentina | 73 | 25/05/2011 |