Maryland Code, Criminal Law § 8-210

(a) In this section, “publish” means to communicate information to one or more persons:

(b) A person may not publish or cause to be published the number or code of an existing, canceled, revoked, expired, or nonexistent telephone credit card, or the numbering or coding system that is used in issuing telephone credit cards, with the intent that the number, code, or system be used or with knowledge that it may be used fraudulently to avoid paying a lawful toll charge.

(c) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 12 months or a fine not exceeding $500 or both.