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 Kiribati in 2011

The 2011 issuing programme is not available.
  1. Ki001.11-80
    Wns Number
    KI001.11
    Country / Post
    Kiribati
    Date of Issue
    April 28, 2011
    Subject
    Royal Wedding - William & Catherine
  2. Ki002.11-80
    Wns Number
    KI002.11
    Country / Post
    Kiribati
    Date of Issue
    June 13, 2011
    Subject
    Pope John Paul II Beatification