| Pos | Name | Country | stamps | Since |
|---|---|---|---|---|
| 1019 | Magaz Jose | España | 4 | 01/01/2010 |
| 202 | Magariños Juan Manuel | Argentina | 42 | 22/10/2009 |
| 576 | Madriz Marcos | Nicaragua | 7 | 02/03/2011 |
| 250 | Madaula Merce | España | 67 | 05/09/2015 |
| 230 | Macías Hortensia | España | 100 | 15/02/2011 |
| 589 | Machado Marcello | Brasil | 6 | 28/12/2010 |
| 866 | Macena Mauricio | Argentina | 1 | 16/06/2012 |
| 153 | Luna Espinoza Patricia | Venezuela | 402 | 11/05/2017 |
| 139 | Lugo Higuera Carlos Humberto | México | 503 | 17/11/2009 |
| 402 | Lucrecio Rudiño | Colombia | 10 | 27/01/2011 |
| 758 | Lucas Antonio | España | 1 | 18/01/2012 |
| 607 | Lozano Luis | España | 3 | 11/10/2009 |
| 157 | Lozano Joserra | España | 266 | 02/02/2012 |
| 98 | Lorenzo Maria Antonia | España | 1836 | 29/05/2010 |
| 373 | Lopez Postigo Jose David | España | 30 | 19/04/2010 |
| 690 | Lopez Gutierrez Nacho | España | 2 | 12/11/2010 |
| 770 | Lopez Garcia Victor M. | España | 2 | 03/02/2012 |
| 313 | Lopez Daniel | España | 20 | 31/12/2008 |
| 582 | Lopez Victor Bruno | Puerto Rico | 4 | 10/03/2009 |
| 378 | Lopez Oscar | España | 33 | 29/01/2010 |