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 Sri Lanka in 2006

The 2006 issuing programme is not available.
  1. Lk001.06-80
    Wns Number
    LK001.06
    Country / Post
    Sri Lanka
    Date of Issue
    January 04, 2006
    Subject
    National Parks of Sri Lanka - Wilpattu National Park - Barking Deer
  2. Lk002.06-80
    Wns Number
    LK002.06
    Country / Post
    Sri Lanka
    Date of Issue
    January 04, 2006
    Subject
    National Parks of Sri Lanka - Wilpattu National Park - White Bellied Sea Eagle
  3. Lk003.06-80
    Wns Number
    LK003.06
    Country / Post
    Sri Lanka
    Date of Issue
    January 04, 2006
    Subject
    National Parks of Sri Lanka - Wilpattu National Park - Sloth Bear
  4. Lk004.06-80
    Wns Number
    LK004.06
    Country / Post
    Sri Lanka
    Date of Issue
    January 04, 2006
    Subject
    National Parks of Sri Lanka - Wilpattu National Park - Leopard
  5. Lk005.06-80
    Wns Number
    LK005.06
    Country / Post
    Sri Lanka
    Date of Issue
    January 06, 2006
    Subject
    100th Anniversary of The Institution of Engineers
  6. Lk064.06-80
    Wns Number
    LK064.06
    Country / Post
    Sri Lanka
    Date of Issue
    February 02, 2006
    Subject
    50th Anniversary of the First Europa stamp
  7. Lk065.06-80
    Wns Number
    LK065.06
    Country / Post
    Sri Lanka
    Date of Issue
    February 02, 2006
    Subject
    50th Anniversary of the First Europa stamp
  8. Lk006.06-80
    Wns Number
    LK006.06
    Country / Post
    Sri Lanka
    Date of Issue
    March 05, 2006
    Subject
    Most Ven. Madithiyawala Wijithasena Anunayaka Thero
  9. Lk007.06-80
    Wns Number
    LK007.06
    Country / Post
    Sri Lanka
    Date of Issue
    March 24, 2006
    Subject
    Kingswood-Dharmaraja 100th Cricket Match
  10. Lk008.06-80
    Wns Number
    LK008.06
    Country / Post
    Sri Lanka
    Date of Issue
    May 05, 2006
    Subject
    2550 Years of Buddhist Era