Transfer Agents who are not gagged are able to provide the current share structure, including the float.
Some OTC companies gag their TAs with some gagging both the O/S and the float and some gagging only the release of the updated float. Companies that gag their TA in either way are usually trying to hide ongoing dilution from my many years of experience. Gagging the release of the current float can be evidence that increases in the O/S may indicat that shares are being sold onto the public market without required registration or exemption from registration. Such action can cause regulatory action.