Cal. Pub. Util. Code § 2891.1
(b) Notwithstanding Section 2891, a provider of mobile telephony services, or any direct or indirect affiliate or agent of a provider, providing the name and dialing number of a subscriber for inclusion in any directory of any form, or selling the contents of any directory database, or any portion or segment thereof, shall not include the dialing number of any subscriber without first obtaining the express consent of that subscriber. The express consent shall meet all of the following requirements:
(1) It shall be one of the following:
(f) This section does not apply to the provision of telephone numbers to the following parties for the purposes indicated:
(2)