Question: When did frontier take over verizon in california?
qaPairs: question: When did frontier take over only part of Verizon California, Inc. in california?
answer: 2010
question: When did frontier officially take over of all of verizon's wired telecom operations in california?
answer: April 1, 2016
question: When did frontier's take over of all of verizon's wired telecom operations in california get announced?
answer: February 5, 2015