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 bands 2, 4, 5, and 12. Bands 2 and 5 are the PCS and Cellular bands. Band 4 is the newer AWS (1700 MHz) band. Band 12 is AT&T's Lower 700 MHz band, which is also identified as band 17. AT&T Mobility was known as Cingular until 2007.
Coverage Area: United States and Puerto Rico
Web Site: http://www.wireless.att.com/ »