The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

All registered stamps issued by Mayotte in 2009

The 2009 issuing programme is not available.
  1. Yt011.09-80
    Wns Number
    YT011.09
    Country / Post
    Mayotte
    Date of Issue
    September 21, 2009
    Subject
    Jasmine
  2. Yt012.09-80
    Wns Number
    YT012.09
    Country / Post
    Mayotte
    Date of Issue
    November 16, 2009
    Subject
    Le Gaboussi