Regulations last checked for updates: Feb 11, 2026

Title 47 - Telecommunication last revised: Feb 05, 2026
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.

authority: 47 U.S.C. 151-55,201,207,218,225,251,271,332
source: 61 FR 45619, Aug. 29, 1996, unless otherwise noted.
cite as: 47 CFR 51.203
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