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Regulations last checked for updates: May 14, 2025
Title 47 - Telecommunication last revised: May 05, 2025
All Titles
Title 47
Chapter I
Part 52 - PART 52—NUMBERING
Subpart A [§ 52.1 - § 52.5] - Subpart A—Scope and Authority
Subpart B [§ 52.7 - § 52.19] - Subpart B—Administration
Subpart C [§ 52.20 - § 52.99] - Subpart C—Number Portability
Subpart D [§ 52.101 - § 52.111] - Subpart D—Toll Free Numbers
Subpart E [§ 52.200 - § 52.202] - Subpart E—Universal Dialing Code for National Suicide Prevention and Mental Health Crisis Hotline System
authority:
47 U.S.C. 151
,
152
,
153
,
154
,
155
,
201
,
207
,
218
,
225
,
251
,
271
,
303
,
332
,
unless
source:
61 FR 38637, July 25, 1996, unless otherwise noted.
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