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 Ecuador in 2004

The 2004 issuing programme is not available.
  1. Ec001.04-80
    Wns Number
    EC001.04
    Country / Post
    Ecuador
    Date of Issue
    January 21, 2004
    Subject
    Homage to the Aviation of the Ecuadoran Army
  2. Ec002.04-80
    Wns Number
    EC002.04
    Country / Post
    Ecuador
    Date of Issue
    January 21, 2004
    Subject
    Homage to the Aviation of the Ecuadoran Army
  3. Ec003.04-80
    Wns Number
    EC003.04
    Country / Post
    Ecuador
    Date of Issue
    January 21, 2004
    Subject
    Homage to the Aviation of the Ecuadoran Army
  4. Ec004.04-80
    Wns Number
    EC004.04
    Country / Post
    Ecuador
    Date of Issue
    January 21, 2004
    Subject
    Homage to the Aviation of the Ecuadoran Army
  5. Ec005.04-80
    Wns Number
    EC005.04
    Country / Post
    Ecuador
    Date of Issue
    April 05, 2004
    Subject
    Centenary of the birth of Commander Rafael Moran Valverde
  6. Ec006.04-80
    Wns Number
    EC006.04
    Country / Post
    Ecuador
    Date of Issue
    April 14, 2004
    Subject
    Homage to the Military Geographic Institute
  7. Ec007.04-80
    Wns Number
    EC007.04
    Country / Post
    Ecuador
    Date of Issue
    May 06, 2004
    Subject
    International Day of Philately
  8. Ec008.04-80
    Wns Number
    EC008.04
    Country / Post
    Ecuador
    Date of Issue
    May 06, 2004
    Subject
    International Day of Philately
  9. Ec009.04-80
    Wns Number
    EC009.04
    Country / Post
    Ecuador
    Date of Issue
    May 06, 2004
    Subject
    International Day of Philately
  10. Ec010.04-80
    Wns Number
    EC010.04
    Country / Post
    Ecuador
    Date of Issue
    May 27, 2004
    Subject
    Ecuadoran Federation of Volleyball