AT&T
AT&T's current wireless network uses GSM/EDGE 2G technology and WCDMA (UMTS) / HSPA+ 3G technology. Both technologies are deployed in both the Cellular (850 MHz) and PCS (1900 MHz) bands. The company's 4G network uses LTE technology in the lower 700 MHz band, with plans to expand to the AWS (1700 MHz) band. AT&T Mobility was known as Cingular until 2007. Cingular was formed by the merger of BellSouth Wireless and SBC Wireless in 2001. Cingular then acquired AT&T Wireless in 2004. Cingular's parent companies SBC and BellSouth then merged with each other, and with AT&T (not AT&T Wireless).
Coverage Area: United States and Puerto Rico
Web Site: http://www.wireless.att.com/ »
