Home
gpo.gov
govinfo.gov

e-CFR Navigation Aids

Browse

Simple Search

Advanced Search

 — Boolean

 — Proximity

 

Search History

Search Tips

Corrections

Latest Updates

User Info

FAQs

Agency List

Incorporation By Reference

eCFR logo

Related Resources

Electronic Code of Federal Regulations

We invite you to try out our new beta eCFR site at https://ecfr.federalregister.gov. We’ve made big changes to make the eCFR easier to use. Be sure to leave feedback using the Help button on the bottom right of each page!

e-CFR data is current as of August 4, 2020

Title 47Chapter ISubchapter BPart 52


TITLE 47—Telecommunication

CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION (CONTINUED)

SUBCHAPTER B—COMMON CARRIER SERVICES (CONTINUED)

PART 52—NUMBERING

rule

Subpart A—SCOPE AND AUTHORITY

§52.1
Basis and purpose.
§52.3
General.
§52.5
Definitions.
rule

Subpart B—ADMINISTRATION

§52.7
Definitions.
§52.9
General requirements.
§52.11
North American Numbering Council.
§52.12
North American Numbering Plan Administrator and B&C Agent.
§52.13
North American Numbering Plan Administrator.
§52.15
Central office code administration.
§52.16
Billing and Collection Agent.
§52.17
Costs of number administration.
§52.19
Area code relief.
rule

Subpart C—NUMBER PORTABILITY

§52.20
Thousands-block number pooling.
§52.21
Definitions.
§52.23
Deployment of long-term database methods for number portability by LECs.
§52.25
Database architecture and administration.
§52.26
NANC Recommendations on Local Number Portability Administration.
§52.31
Deployment of long-term database methods for number portability by CMRS providers.
§52.32
Allocation of the shared costs of long-term number portability.
§52.33
Recovery of carrier-specific costs directly related to providing long-term number portability.
§52.34
Obligations regarding local number porting to and from interconnected VoIP or Internet-based TRS providers.
§52.35
Porting Intervals.
§52.36
Standard data fields for simple port order processing.
§§52.37-52.99
[Reserved]
rule

Subpart D—TOLL FREE NUMBERS

§52.101
General definitions.
§52.103
Lag times.
§52.105
Warehousing.
§52.107
Hoarding.
§52.109
Permanent cap on number reservations.
§52.111
Toll free number assignment.
Appendix
Appendix to Part 52—Deployment Schedule for Long-Term Database Methods for Local Number Portability

Need assistance?