CFR›Title 47›Chapter I›Part 64›Subpart B ContainsSection 64.201CorpusDaily eCFRDisplayed edition2026-05-20Last updated2026-05-20 Subpart B—Restrictions on Indecent Telephone Message Services Sections 64.201 § 64.201 Restrictions on indecent telephone message services. Previous Appendix B to Part 64 Appendix B to Part 64—Wireless Priority Service (WPS) for National Security and Emergency Preparedness (NSEP) Next BB Subpart BB—Restrictions on Unwanted Mobile Service Commercial Messages