CFR /  Title 47  /  Part 52: Numbering

Section No.	Description
Section 52.1	General
Section 52.3	Definitions
Section 52.5	Definitions
Section 52.7	General requirements
Section 52.9	North American Numbering Council
Section 52.11	North American Numbering Plan Administrator and B&C; Agent
Section 52.12	North American Numbering Plan Administrator
Section 52.13	Central office code administration
Section 52.15	Billing and Collection Agent
Section 52.16	Costs of number administration
Section 52.17	Area code relief
Section 52.19	Thousands-block number pooling
Section 52.20	Definitions
Section 52.21	Deployment of long-term database methods for number portability by LECs
Section 52.23	Database architecture and administration
Section 52.25	NANC Recommendations on Local Number Portability Administration
Section 52.26	Deployment of long-term database methods for number portability by CMRS providers
Section 52.31	Allocation of the shared costs of long-term number portability
Section 52.32	Recovery of carrier-specific costs directly related to providing long-term number portability
Section 52.33	Obligations regarding local number porting to and from interconnected VoIP or Internet-based TRS providers
Section 52.34	Porting Intervals
Section 52.35	Standard data fields for simple port order processing
Section 52.36	General definitions
Section 52.101	Lag times
Section 52.103	Warehousing
Section 52.105	Hoarding
Section 52.107	Permanent cap on number reservations
Section 52.109	Toll free number assignment
Section 52.111	Basis and purpose