Provides that in obtaining a subscriber's consent, the radio communications service company or direct or indirect affiliate or agent of a radio communications service company shall unambiguously disclose that, by consenting, the subscriber agrees that the subscriber's express, opt-in consent will be construed as consent for the subsequent publication of the wireless phone number to and by third parties in other directories or databases.

Requires that a directory provider shall not include any phone number that belongs to a Washington state resident in any directory of any form, or sell the contents of any directory database, without first undertaking a reasonable ongoing investigation as to whether the phone number is a wireless phone number.

Directs that a radio communications service company or a directory provider, who has maintained a directory before the effective date of this act, must within thirty days either secure the express, opt-in consent of each subscriber listed in the directory or remove the wireless phone numbers of any subscribers who have not provided their express, opt-in consent.