Ary Boender is a shortwave listener from Spijkenisse in the Netherlands. He specializes in HF utility radio communications. Ary was a president and columnist of the defunct World Utility News club (WUN). He currently runs the Utility DXers Forum (UDXF), a utility DX oriented online community, and also continues to publish his regular "Numbers & Oddities" newsletter on his website.
- http://home.luna.nl/~ary/ : Ary Boender's website, with all issues of "Numbers & Oddities" newsletter
- http://www.udxf.nl : Utility DX Forum website