Verizon (originally Bell Atlantic)'s history is much the same. There's even some back and forth between it and what is now AT&T over who gets what of the RBOCs

Verizon (originally Bell Atlantic)'s history is much the same. There's even some back and forth between it and what is now AT&T over who gets what of the RBOCs and their spinoffs/successors. Now, if Verizon and AT&T merge, then Ma Bell really will be back.