47 CFR 64.1601 : Telecommunication (§ 0.1 To Parts 401-499) — (Parts 40-41 To § 69.731) — Federal Communications Commission (Continued) (Parts 40-41 To § 69.731) — Common Carrier Services (Continued) (Parts 40-41 To § 69.731) — Miscellaneous Rules Relating To Common Carriers (§ 64.1 To Appendix B To Part 64) — Calling Party Telephone Number; Privacy (§ 64.1600 To § 64.1605) — Delivery requirements and privacy restrictions.