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 British Indian Ocean Territories in 2011

The 2011 issuing programme is not available.
  1. Io011.11-80
    Wns Number
    IO011.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    August 01, 2011
    Subject
    Royal Wedding
  2. Io012.11-80
    Wns Number
    IO012.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  3. Io013.11-80
    Wns Number
    IO013.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  4. Io014.11-80
    Wns Number
    IO014.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  5. Io015.11-80
    Wns Number
    IO015.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  6. Io016.11-80
    Wns Number
    IO016.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  7. Io017.11-80
    Wns Number
    IO017.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  8. Io018.11-80
    Wns Number
    IO018.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  9. Io019.11-80
    Wns Number
    IO019.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion
  10. Io020.11-80
    Wns Number
    IO020.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    November 11, 2011
    Subject
    90th Anniversary of The British Legion