47 CFR § 52.111
Toll free number assignment
February 16, 2021
Toll free telephone numbers must be made available to Responsible Organizations and subscribers on an equitable basis. The Commission will assign toll free numbers by competitive bidding, on a first-come, first-served basis, by an alternative assignment methodology, or by a combination of the foregoing options.
[83 FR 53396, Oct. 23, 2018]