AT&T to Sunset 2G Network by 2017
AT&T plans to shutter its GSM and EDGE wireless networks by 2017. The information, which comes from an SEC filing made by AT&T, reveals that only 12% of the company's current subscribers are using 2G-only devices. AT&T believes it can coax those users to switch to more advanced devices that use its 3G or 4G networks between now and 2017. The company doesn't expect the transition will present any problems. AT&T will refarm its 2G spectrum for use with faster networks.
Don't know what's involved but my hats off to tower workers!