My understanding(West Coast, please correct me if needed):
California--Only getting rid of some rural areas in extreme NW corner of state(Crescent City, Klamath area), and maybe some small territory bordering Nevada and Arizona. All other California Verizon (including LA and Inland Empire) kept by Verizon.
Washington--dumping rural areas and suburban Seattle areas. No more Washington Verizon landlines or FiOS, all to transfer over to Frontier.
Oregon--dumping rural areas and suburban Portland areas. No more Oregon Verizon landlines or FiOS, all to transfer over to Frontier.