役職
Role:Executive Board Member (RIPE NCC)未評価
Role:Co-chair (RIPE Address Policy Working Group)· 2007 – 2018未評価履歴情報
Role:Founding board member (Netherlands IPv6 Foundation)未評価履歴情報
Role:Founding board member (NLNOG)未評価履歴情報
Role:Founding board member (Global NOG Alliance)未評価履歴情報
Role:Independent consultant· 2010未評価
