Cal. Penal Code § 502.7

(a) Any person who, knowingly, willfully, and with intent to defraud a person providing telephone or telegraph service, avoids or attempts to avoid, or aids, abets or causes another to avoid the lawful charge, in whole or in part, for telephone or telegraph service by any of the following means is guilty of a misdemeanor or a felony, except as provided in subdivision (g):
1. (1) By charging the service to an existing telephone number or credit card number without the authority of the subscriber thereto or the lawful holder thereof.
2. (2) By charging the service to a nonexistent telephone number or credit card number, or to a number associated with telephone service which is suspended or terminated, or to a revoked or canceled (as distinguished from expired) credit card number, notice of the suspension, termination, revocation, or cancellation of the telephone service or credit card having been given to the subscriber thereto or the holder thereof.
3. (3) By use of a code, prearranged scheme, or other similar stratagem or device whereby the person, in effect, sends or receives information.
4. (4) By rearranging, tampering with, or making connection with telephone or telegraph facilities or equipment, whether physically, electrically, acoustically, inductively, or otherwise, or by using telephone or telegraph service with knowledge or reason to believe that the rearrangement, tampering, or connection existed at the time of the use.
5. (5) By using any other deception, false pretense, trick, scheme, device, conspiracy, or means, including the fraudulent use of false, altered, or stolen identification.
(b) Any person who does either of the following is guilty of a misdemeanor or a felony, except as provided in subdivision (g):
1. (1) Makes, possesses, sells, gives, or otherwise transfers to another, or offers or advertises any instrument, apparatus, or device with intent to use it or with knowledge or reason to believe it is intended to be used to avoid any lawful telephone or telegraph toll charge or to conceal the existence or place of origin or destination of any telephone or telegraph message.
2. (2) Sells, gives, or otherwise transfers to another or offers, or advertises plans or instructions for making or assembling an instrument, apparatus, or device described in paragraph (1) of this subdivision with knowledge or reason to believe that they may be used to make or assemble the instrument, apparatus, or device.
(c) Any person who publishes the number or code of an existing, canceled, revoked, expired, or nonexistent credit card, or the numbering or coding which is employed in the issuance of credit cards, with the intent that it be used or with knowledge or reason to believe that it will be used to avoid the payment of any lawful telephone or telegraph toll charge is guilty of a misdemeanor. Subdivision (g) shall not apply to this subdivision. As used in this section, “publishes” means the communication of information to any one or more persons, either orally, in person or by telephone, radio, or television, or electronic means, including, but not limited to, a bulletin board system, or in a writing of any kind, including without limitation a letter or memorandum, circular or handbill, newspaper, or magazine article, or book.
(d) Any person who is the issuee of a calling card, credit card, calling code, or any other means or device for the legal use of telecommunications services and who receives anything of value for knowingly allowing another person to use the means or device in order to fraudulently obtain telecommunications services is guilty of a misdemeanor or a felony, except as provided in subdivision (g).
(e) Subdivision (a) applies when the telephone or telegraph communication involved either originates or terminates, or both originates and terminates, in this state, or when the charges for service would have been billable, in normal course, by a person providing telephone or telegraph service in this state, but for the fact that the charge for service was avoided, or attempted to be avoided, by one or more of the means set forth in subdivision (a).
(f) Jurisdiction of an offense under this section is in the jurisdictional territory where the telephone call or telegram involved in the offense originates or where it terminates, or the jurisdictional territory to which the bill for the service is sent or would have been sent but for the fact that the service was obtained or attempted to be obtained by one or more of the means set forth in subdivision (a).
(g) Theft of any telephone or telegraph services under this section by a person who has a prior misdemeanor or felony conviction for theft of services under this section within the past five years, is a felony.
(h) Any person or telephone company defrauded by any acts prohibited under this section shall be entitled to restitution for the entire amount of the charges avoided from any person or persons convicted under this section.
(i) Any instrument, apparatus, device, plans, instructions, or written publication described in subdivision (b) or (c) may be seized under warrant or incident to a lawful arrest, and, upon the conviction of a person for a violation of subdivision (a), (b), or (c), the instrument, apparatus, device, plans, instructions, or written publication may be destroyed as contraband by the sheriff of the county in which the person was convicted or turned over to the person providing telephone or telegraph service in the territory in which it was seized.
(j) Any computer, computer system, computer network, or any software or data, owned by the defendant, which is used during the commission of any public offense described in this section or any computer, owned by the defendant, which is used as a repository for the storage of software or data illegally obtained in violation of this section shall be subject to forfeiture.