Allison, you are so funny.....I can't stop laughing after reading your post. You go girl!LOL I love it!

I just got a call and called back.  It says "Thank you for calling our office is currently closed.  Please call back during our normal business hours M-F 7-4PST" it's 8:47 PST.  And you just called me.  
Anyway adding to blocked number list

This number is from suburban Colorado - Hudson, CO - according to Google Voice. Calls me once each day starting this week and leaves no messages and my phone never rings on my end that I can hear.

I've just added them to my block list.

(720) 358-3916 - Hudson, CO

It is from REC Solar

Fax tone 5 times a day!  I don't own a fax but seriously considering buying one so I can see what they are trying to fax!

I believe it EZ MONEY payday loan.

i think all these numbers are the from the same persob
reporting all of them too the police and the fcc

NCS
NATIONAL COLLECTION SERVICES
They are rude and use harassment tactics.

Anyone involved in making unsolicited phone calls should be hunted and summarily executed.

These guys now call every day, no message, still get "this call is being recorded" when you call back without any identification. Complete crap.

Received a call from 720-358-5236, message left was "Hey this is Chad Cook, I want to do some business with you". On calling back, received message "This call is being recorded." Hung up right away.

These people call several times a day. I've never answered but they never leave any messages. They call early mornings, late nights. On Sundays and holidays too. Which I'm sure violates some kind of regulation.

These guys are Telemarketers. Call your cell company and BLOCK their calls. They give you the opportunity to Opt Out of future call but they sitll call.

Got a call today at 7:45pm. My husband and I listened to on-hold muzak, waited about 30 seconds and hung up. No actual person ever came to the phone.

I read above that there is a chance that these folks are trying to hack the phones of whomever they dial. How is that done? Should I worry?

Got a call from this number today at noon, it rang twice and stopped. Whoever it was did not leave a voice mail. I called back and it didn't even go through to anyone, just beeped once and disconnected. Weird...

I am having the same problem! I just don't pick it up anymore, they don't even wait for Voicemail, let alone leave one. They just hang up halfway through ringing...it's really beginning to freak me out. How long did it last for you guys?

Getting calls at all hours, no message is ever left. I am in Colorado at area code 720. From what research I have done, sounds like a telemarketer that advises you about a complimentary magazine subscription since you are a credit card holder.... very annoying.. lets put this number out of business..

I have been getting calls from 720-358-3132 to my cell every day as well. If you answer they hang up and if you call back it is a busy signal, every time.
I would think if you are trying to sell me something, you would speak up.

They call, I answer, they hang up. :(

Yes, I too have been getting these phone calls. They started yesterday, so far they call me twice a day. Once between (9:30-10:00) and again around (7:30). I haven't been able to answer cause it seems they call at inconvenient times. But this has been going on for two days now so I decided to call them back, I must of tried a dozen times and I kept getting a busy signal. So I waited and tried again from my house number and it started to ring so i was like wtf? Used my cell phone once more to call them back and it rang twice and then they disconnected me. Frustrating.... I looked it up and it did say it was a landline but it wont tell me the owners name or anything. So I'll see if i can catch their next call I suppose....

PS - I noticed from the range of comments that this "mysterious caller" has been harrassing us all recently... really freaky.

they have called me twice today and hang up.. i can not find anything on this caller..if anyone knows anything it would help.. i did get as far as it is from hudson colorado

They have called and hung up on me as well, and when you try to call back it goes straight to a busy signal. I am just going to ignore the call each time it pops up and hope that they will eventually get the hint that they are idiots and should stop calling all of us! HAHAHA!

Same thing started yesterday

Got one today, Called back and call did not go through

Colorado Area Code

I just started getting calls this morning. I answer and they hang up. Then I try to call back and it give a busy signal. I don't really know who this is my only thought is that I have recently applied for jobs on Craig's List and have been applying for school online as well. Anyone else done anything similar?

I just started getting calls from this place today.  One in the morning, then again at 12:30 and just now at 1:30.  This is annoying...they dont leave messages and I'm not going to bother calling them back since everybody on here says they can't get threw.

I supposedly was in the drawing for a 25k prize but i had to receive 4 magazines for free and pay 4.99 for the rolling stone mag..... I told him not gonna give out my credit card number and told him to bite me..

This person or person(s) are calling peoples phones because they are trying to hack your phone.  If they call more than once it is because they are having problems hacking your phone.  I know this because they have been trying to hack my phone but are unable too.

what can they do if they are able to hack your phone

I got one too.  Dex Knows phone website says it is not a land line, it is a cell phone number and there is no information, no results found, only said it is from Denver, not Hudson.