| Pos | Name | Country | stamps | Since |
|---|---|---|---|---|
| 348 | Lopez Guillermo | Paraguay | 46 | 02/05/2012 |
| 831 | Lopez Wosbel Alberto | Guatemala | 1 | 06/02/2012 |
| 210 | Lopez Jose | España | 268 | 13/03/2012 |
| 716 | Lopez Pablo | Venezuela | 2 | 27/06/2014 |
| 803 | Lopez Jesus | Venezuela | 1 | 01/05/2018 |
| 772 | Lopez Garcia Victor M. | España | 2 | 03/02/2012 |
| 687 | Lopez Gutierrez Nacho | España | 2 | 12/11/2010 |
| 373 | Lopez Postigo Jose David | España | 30 | 19/04/2010 |
| 100 | Lorenzo Maria Antonia | España | 1836 | 29/05/2010 |
| 606 | Lozano Luis | España | 3 | 11/10/2009 |
| 157 | Lozano Joserra | España | 266 | 02/02/2012 |
| 761 | Lucas Antonio | España | 1 | 18/01/2012 |
| 401 | Lucrecio Rudiño | Colombia | 10 | 27/01/2011 |
| 138 | Lugo Higuera Carlos Humberto | México | 503 | 17/11/2009 |
| 153 | Luna Espinoza Patricia | Venezuela | 402 | 11/05/2017 |
| 864 | Macena Mauricio | Argentina | 1 | 16/06/2012 |
| 584 | Machado Marcello | Brasil | 6 | 28/12/2010 |
| 229 | Macías Hortensia | España | 100 | 15/02/2011 |
| 251 | Madaula Merce | España | 67 | 05/09/2015 |
| 582 | Madriz Marcos | Nicaragua | 7 | 02/03/2011 |