On March 27, 2006, the operation of the line constructed between Ikoma Station and Gakken-Nara-Tomigaoka Station, having been temporarily called the 'New Keihanna Line,' started, and at this time the line between Nagata Station and Ikoma Station, having been operated as the Higashi-Osaka Line, was renamed as the Keihanna Line as well.
2006年3月27日に「京阪奈新線」の仮称で建設されていた生駒駅から学研奈良登美ヶ丘駅までが開業し、それと同時にすでに東大阪線として開業していた長田～生駒間もけいはんな線に改称された。