406-931-3975

Has called many times. I hang up when they speak. I called number back without the 1 for long distance and some teenager's voice for his voice mail says to leave a message.

5 calls in 3 days.  They don't answer when I pick up and won't answer when I call back.

I have received three calls from this number to my cell phone within the past 24 hrs (No. California).  Both my home landline and cell phones are registered on the "do not call" lists.  I answered the first call, dead air.  I have not answered the last two, they do not leave a message.

Be sure to file a complaint at https://complaints.donotcall.gov/complaint/complaintcheck.aspx.  Also, be sure to register your number so if these inconsiderate individuals call you, they get in trouble.  Thanks!

Called me, no answer then hung up on me.

Received a missed call from them.  Called back and it is dead air.  I hope it isn't one of these where they use your number to call another country.

Also receiving repeated calls with no message.  Think I'm going to follow "Avid Student's" advice--pick up and leave line open till it disconnects---yes, let THEM be inconvenienced. (:-)

I would agree, except the FCC is no longer funded to enforce the DNC list.

It has been annoying me!

Calling and hanging up, twice so far today.

I got two missed calls today on my personal cell phone as well.

Keep getting these calls on my cell.  I don't answer and no message is left.

Keep getting calls from this number, twice a day!!  no message and have been hang-ups too!

they called and tried to convince me to put some security stuff in my backyard in exchange for some money. Where did they find their brain dead morons?

Received a call from 406-931-3975 at 9:40 a.m.   This is my work number.  I am allowed to not answer calls as I do not receive calls from anyone except interoffice personnel so I am able to monitor all the spam calls as they come in, however it is time consuming and it wastes company money when I receive calls.  I usually trace and delete them during my lunch hour.
Thanks folks for your imputs, it helps me track and log all the junk calls that come in on my line.

Keep calling my cell but do not leave a message.  When I tried to call back I just get dead air or a rapid busy signal.

I am also getting multiple calls from 406 931 3975 with no message left.

406-831-3975 I received the first  call at 9:40 a.m.(Per my earlier message).  Since then I have received 2 more calls at 11:49 a.m. and 1:56 p.m.  I am here until 3:45 p.m.  There may be some more calls before I leave.  It is time consuming and wastes money in more than one way.
I also put my number on the "no call list" about two weeks ago.  I don't think that does any good as we still get these calls.  The interesting thing here is that we have some 40 extentions, and my phone is the only one that gets these calls, not even our front desk gets them.

I've had 3 calls today in 6 hours from this number. No message left, super annoying. I am also on a don't call list.

They called me twice today... I went to Sprint's website and had a chat with a representative.  I asked them to block that number and they're doing it as I'm typing this message.  I also submitted a complaint via other people's links above me.