U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 07, 2025

All TitlesTitle 47Chapter IPart 51Subpart C - Subpart C—Obligations of All Local Exchange Carriers
View all text of Subpart C [§ 51.201 - § 51.233]
§ 51.203 - Number portability.

The rules governing number portability are set forth in part 52, subpart C of this chapter.

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