AT&T's Chicago hotzone was launched today, the third in its pilot for offloading 3G data to Wi-Fi for subscribers: AT&T said its Chicago hotzone covers "Wrigleyville," the area around Wrigley Field. AT&T's first hotzone was installed in Times Square (Manhattan), and second in Charlotte, NC. The zones are entirely for its own customers, a way for the company to keep high data rates at a lower cost while conserving 3G spectrum use.
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