47 CFR Subpart B
Administration
February 16, 2021
§
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