California Code, Public Utilities Code - PUC § 2889.3

(a)(1) Before a telephone corporation exits the business of providing interexchange services to all of its customers or to an entire class of its customers, the telephone corporation or any person, firm, or corporation representing the telephone corporation, shall provide those affected customers with a written notice at least 30 days prior to the proposed transfer of those customers to another telephone corporation. The notice shall include all of the following:

(2) Any transfer of customer services shall be effectuated without charge.