Any LTA Advantage members in the Play, Play+ or Compete categories, who wants to play or compete at any level, will be able to get their own ITF World Tennis Number for free.
If you have an LTA Rating but have not competed since 2016 you will need to activate your Number by completing the Questionnaire which can be found in the 'MyGame' area of your Advantage profile.
To activate your WTN, please log into your LTA Advantage account, visit your 'MyGame' dashboard, select the Activate your WTN button and complete the 5 simple questions. Your ITF World Tennis Number will be allocated in 5-10 minutes.
A WTN that has not yet been activated will show as 40.9.
If you would like more information on the ITF World Tennis Number or the principles behind it you can find out more here.