With rapidly changing technology, Checker Yellow Cab introduced an APP in 2014 providing the quickest ride (Checker Yellow Cab Calgary). You can also TEXT 4 Taxi @ 403.299.9999 with your pick up address. Before our 1,300 drivers are allowed to driver for Checker Yellow Cabs, they take customer services and AMA Evaluation courses. Al Enders, a pioneer in the industry, didn’t invent the taxi business but he made it better. Thanks Calgary for the 4.5 million trips we provide, each and every year.