AT&T is the Carrier of Last Resort (COLR) in various areas of California. They have applied to the CPUC to have "targeted relief" from that telephone service o

AT&T is the Carrier of Last Resort (COLR) in various areas of California. They have applied to the CPUC to have "targeted relief" from that telephone service obligation. Currently, AT&T could provide telephone service via fiber, rather than copper, wherever they may choose to do so. So, currently, they can transition to fiber-to-the-premises wherever they want. Their COLR obligation does not require copper wires as the technology.