Leap Wireless International, Inc. was a telecommunications operator that provided wireless services to approximately 4.6 million subscribers, the 5th largest, through its subsidiary, Cricket Communications, Inc. (Cricket Wireless). It was headquartered in San Diego, California. Leap Wireless and Cricket Wireless are now subsidiaries of AT&T. Leap has all-digital CDMA 1X, EV-DO and LTE networks that have expanded significantly in the past few years.