Definitely a bad player. This number called my cell. When called back I received a recording asking for date of birth, social security number and full name under the guise of the "opt out" program. I hadn't called the "do not call" number for over a year. Very slick recorded voice but I believe it's a more sophisticated version of Phishing.
here is the partial message they left (since the computer-voice was mid-sentence when Google Voice started transcribing it for me):
. . . advocacy group. If you or a loved one has suffered from blood clots, Deep Vein Thrombosis or even a stroke after taking the medication YAZ. Yasmin, or Ocella press one now. You may be entitled to financial compensation. Press 1 now to speak with a representative or press 9 to be removed.
i have no idea whether they are legitimate, so i just told Google Voice to block any further calls from them. EOS !