Crazy John's was a mobile phone retail chain in Australia started by Turkish Australian businessman John Ilhan. Crazy John's was the largest independent phone retailer in Australia, employing more than 400 people with more than 600 retail stores. Following his death in 2007, Ilhan's wife Patricia sold her stake in the company to Vodafone Australia, now a part of TPG Telecom. Originally a dealer of Telstra Mobile, Crazy John's became a Mobile Virtual Network Operator through the Vodafone Australia network, dealing directly with customers and offering its own competitive mobile phone deals and plans.