Ditto.  Interesting the two other posts from today already.  I don't think I"ll listen to my 2sec voicemail:

You have a new voicemail.

Message Details:
Status:    Normal
Extension: xxxxx
Caller:     <7778890803>
Time:      01:35:04 09/21/2011 (EDT)
Duration:  2 seconds

I also got 3 calls from this number at work early this morning, two of them just before 2am and the last around 5am. My number also requires dialing an extension. No idea what this is all about, but people need to find a better use of their time.

I see these posts are a year old.  I got one today at work, which means they'd have to also dial an extension, at 2:13am.    No message.  What kind of scammer would be stupid enough to call a work number when nobody's there and not even leave a message?

My husband and I both received a call from this number at 4 am.  No message was left.

I know this is relatively early to most of you, but as a new mom, calls coming in at 10:20 pm are not only disruptive to the little sleep I do manage to get, but disarming as well. I have elderly parents and anytime the phone rings this this late is very disturbing.

I received a call from this number at 4:15 am this morning.  I tried calling it back, but all I heard was "the number you reached cannot be completed at this time"  What the heck does that mean????  I have family that is very ill and a call at that time in the morning should be emergencies only!!!  This should be harassment if they can find out who is doing this!!!!!!!!!!!!!!!!

This number also called me at 4:40am this morning 7/16/2010. I tried to return the call but only received a "this call can not be complted as dialed" at the other end. I really want to yell at someone! Phone calls at that time in the morning are usually emergency calls.

Same here, except I received two back to back calls at 3:08am today.  I just changed my address and updated some phone numbers for a few online accounts yesterday.  It's possible that is how they got my number.

Aggravating...

Received a call at 9:47 p.m from this number.  I don't give out my cell number to anyone except friends and family.  They did not leave a mssg and couldn't get any info when doing a reverse search. Sounds like it's probably a scam!