SBC became AT&T in 2005. Today, AT&T provides home phone primarily over IP alongside broadband (fiber and DSL) and wireless services; many customers now replace landlines with mobile, and AT&T offers bundled voice and internet plans.
Mobile broadband that began with brands like Cingular evolved into modern services - from tethered phone access to fixed wireless home internet - driven by 4G, 5G, and new service models.
Cingular Wireless built a strong reputation in the 2000s for GSM-based compatibility and international roaming. The brand was rebranded into AT&T Mobility in 2007, and its legacy continues in today's LTE/5G networks and roaming services.
After SBC acquired AT&T in 2005 and took on the AT&T name, the combined company became a national telecom provider. Today AT&T offers wireless, DSL and expanding fiber broadband, legacy voice, and business network services - with availability depending on local networks and ongoing deployments.