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 Sudan in 2009

The 2009 issuing programme is not available.
  1. Sd001.09-80
    Wns Number
    SD001.09
    Country / Post
    Sudan
    Date of Issue
    February 19, 2009
    Subject
    Bilateral Relations with China
  2. Sd002.09-80
    Wns Number
    SD002.09
    Country / Post
    Sudan
    Date of Issue
    February 19, 2009
    Subject
    Bilateral Relations with China
  3. Sd003.09-80
    Wns Number
    SD003.09
    Country / Post
    Sudan
    Date of Issue
    February 19, 2009
    Subject
    Bilateral Relations with China