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 in 2018 with theme "Winter Olympics"

  1. Sk003.18-80
    Wns Number
    SK003.18
    Country / Post
    Slovakia
    Date of Issue
    January 19, 2018
    Subject
    XXIII Winter Olympic Games in PyeongChang
  2. Cz004.18-80
    Wns Number
    CZ004.18
    Country / Post
    Czech Republic
    Date of Issue
    January 20, 2018
    Subject
    Czech Olympic Team 2018
  3. Ua006.18-80
    Wns Number
    UA006.18
    Country / Post
    Ukraine
    Date of Issue
    January 23, 2018
    Subject
    Olympic Team of Ukraine
  4. Si002.18-80
    Wns Number
    SI002.18
    Country / Post
    Slovenia
    Date of Issue
    January 26, 2018
    Subject
    The XXIII Olympic Winter Games - Ice hockey
  5. Si003.18-80
    Wns Number
    SI003.18
    Country / Post
    Slovenia
    Date of Issue
    January 26, 2018
    Subject
    The XXIII Olympic Winter Games - Skiing
  6. Hr001.18-80
    Wns Number
    HR001.18
    Country / Post
    Croatia
    Date of Issue
    February 07, 2018
    Subject
    Winter Olympic Games - PyeongChang 2018
  7. By006.18-80
    Wns Number
    BY006.18
    Country / Post
    Belarus
    Date of Issue
    February 09, 2018
    Subject
    XXIII Olympic Winter Games in PyeongChang
  8. Kr011.18-80
    Wns Number
    KR011.18
    Country / Post
    Korea Republic
    Date of Issue
    February 09, 2018
    Subject
    Celebrating the Opening of PyeongChang 2018
  9. Kr012.18-80
    Wns Number
    KR012.18
    Country / Post
    Korea Republic
    Date of Issue
    February 09, 2018
    Subject
    Celebrating the Opening of PyeongChang 2018
  10. Ro014.18-80
    Wns Number
    RO014.18
    Country / Post
    Romania
    Date of Issue
    February 09, 2018
    Subject
    Winter Olympic Games PyeongChang 2018 - Bobsleigh