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. Io001.11-80
    Wns Number
    IO001.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 01, 2011
    Subject
    HM Queen Elizabeth II - A Lifetime of Service
  2. Io002.11-80
    Wns Number
    IO002.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 01, 2011
    Subject
    HM Queen Elizabeth II - A Lifetime of Service
  3. Io003.11-80
    Wns Number
    IO003.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 01, 2011
    Subject
    HM Queen Elizabeth II - A Lifetime of Service
  4. Io004.11-80
    Wns Number
    IO004.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 01, 2011
    Subject
    HM Queen Elizabeth II - A Lifetime of Service
  5. Io005.11-80
    Wns Number
    IO005.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 01, 2011
    Subject
    HM Queen Elizabeth II - A Lifetime of Service
  6. Io006.11-80
    Wns Number
    IO006.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    March 01, 2011
    Subject
    HM Queen Elizabeth II - A Lifetime of Service
  7. Io007.11-80
    Wns Number
    IO007.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    August 01, 2011
    Subject
    Royal Wedding
  8. Io008.11-80
    Wns Number
    IO008.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    August 01, 2011
    Subject
    Royal Wedding
  9. Io009.11-80
    Wns Number
    IO009.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    August 01, 2011
    Subject
    Royal Wedding
  10. Io010.11-80
    Wns Number
    IO010.11
    Country / Post
    British Indian Ocean Territories
    Date of Issue
    August 01, 2011
    Subject
    Royal Wedding