I just reported on this number or 866-375-2366. As I thought they are also not allowed to contact a person prior to sending written consent. This next part is directly from the ftc website and the file of the FDCPA

§ 805. Communication in connection with debt collection
(a) COMMUNICATION WITH THE CONSUMER GENERALLY.
Without the prior consent of the consumer given
directly to the debt collector or the express permission of
a court of competent jurisdiction, a debt collector may not
communicate with a consumer in connection with the collection
of any debt—
(1) at any unusual time or place or a time or place known
or which should be known to be inconvenient to the consumer. In the absence of knowledge of circumstances
to the contrary, a debt collector shall assume that the
convenient time for communicating with a consumer
is after 8 o’clock antimeridian and before 9 o’clock
postmeridian, local time at the consumer’s location;