number calls multiple times a day and just hangs up

http://whocallsme.com/Phone-Number.aspx/7704150638#p673978570644891277
I put the annoyance call on the above site too.
I haven't got anything else to do but get up and down and answer the idiot robo call from 770-415-0638 and no one answers. If it is AT&T I've told them before "several" times - bother me again and I'll get rid of the land line and internet.  Morons.  Caller ID says Unassigned.  They called 2 x today.  If I harassed my customers like they do - but my company doesn't get government assistance like theirs does.   I'd like to go back to the days where there was no dial on the phone and you had to wait your turn on the party line.  Kids that's a black desk phone, no rotary dial, no push buttons, no walking around the room or driving your car with it in your hands and you didn't bother people and you didn't use the phone unless it was important and it also didn't cost $100+ a month for their "service" either.   Come to think of it I will drop AT &T anyway now that Comcast and Xfinity and cell phones and cable companies exist.  Good bye dirtbags you bothered me for the last time.

I haven't got anything else to do but get up and down and answer the idiot robo call from 770-415-0638 and no one answers. If it is AT&T I've told them before "several" times - bother me again and I'll get rid of the land line and internet.  Morons.  Caller ID says Unassigned.  They called 2 x today.  If I harassed my customers like they do - but my company doesn't get government assistance like theirs does.   I'd like to go back to the days where there was no dial on the phone and you had to wait your turn on the party line.  Kids that's a black desk phone, no rotary dial, no push buttons, no walking around the room or driving your car with it in your hands and you didn't bother people and you didn't use the phone unless it was important and it also didn't cost $100+ a month for their "service" either.   Come to think of it I will drop AT &T anyway now that Comcast and Xfinity and cell phones and cable companies exist.  Good bye dirtbags you bothered me for the last time.

HAS CALLED 2 TIMES SO FAR TODAY-- NO MESSAGE

constant harassment with hang up calls

Just got a call at my workplace from this number.  Identified himself as being from AT&T and needed to upgrade us and he'd be sending us something in the mail.  I told him we were not  interested and I hung up the phone.  They call from this number every so often.  Really bothersome.

This number calls 2-3 times daily & at night. I have called them back & left messages to stop calling,but they dont care!! I am on the Do Not Call register.

I have been getting from 10 to 20 of this number over a two week- on caller id and have now tried to put a caller block on it!

This is about upgrading AT&T internet. Called 4 times today and hung up. Must be an autodialer. What a nuisance!

This number calls all the time........No one ever says anything.......silence!!!!  frustrating : (

These guys are bad news at best!  I put their number in my caller I.D.; once they wanted to sell me a mortgage and once they said they were AT&T!

I received numerous calls over the last 4 days from this number.  I say hello 3-4 times and then they hang up.  I have called this number and a recording came on and said  "the person at extension #196379 is not available and to leave a message."  I asked them to remove our company number from their list.  We will see.  I just now received another phone call from this number, it has been probably 20 minutes from the last one.  I answered and told them to "please remove our number from your calling list"  

These morons called me this morning as early as 5:30 AM in California!  The caller ID shows as "Unassigned".  When they called for a FOURTH TIME this morning just now, I picked up the phone to try to find out who they were.  They said they were from AT&T and that they were going to soon upgrade my DSL service to U-Verse.  I already have U-Verse, and AT&T's business hours start at 8:00 AM, so I've concluded this call is bogus.  I tried to call back to investigate further, but the call went to a useless message "the person at extension nnnn is not available ..."  There was no company name or individual name specified.

I told them (and I quote) -- "I already have U-Verse.  Some moron from this number began calling me at 5:30 AM today.  This is the fourth call I've received today from this number and I never, ever want to see this number on my call list EVER AGAIN."  They agreed.  We shall see, I guess.

Repeated calls from this number started today.

THESE PEOPLE CALL REPEATEDLY EVEN AFTER I TOLD THEM TO REMOVE OUR COMPANY FROM THEIR LIST.
TODAY THEY CALLED 4 TIMES BETWEEN 9AM TO NOON AND IT WAS DEAD AIR WHEN I SAID HELLO. WHEN THEY CALLED PREVIOUSLY THEY REPRESENTED THEMSELVES AS PARTNERS WITH AT&T TO UPDATE OUR SERVICES & I TOLD THEM I DEALT DIRECTLY WITH AT&T ONLY AND THEY WOULD HANG UP. WHEN I CALL THEM BACK THE LINE IS BUSY. I AM GETTING VERY ANNOYED.

they call all the time...representing ATT...I dont think so...I tell them they are NOT ATT and to stop calling.  We shall see if they stop.  I have them marked in my phone as spam!!

I am getting repeated calls from this number, when I answer they hang up. I have tried calling it back and it gives me a busy signal. This has happened at least five times this am between 7:30-10:00AM, very annoying.

These stupid people calledme this morning at 6:30!  "Good morning ma'am, I'm calling on behalf of (sounded like, 'ATMP'."  I was having trouble hearing them, and I was furious that ANYONE would call at that time of the morning, and when I asked (heatedly) for them repeat to me who they were, at that time of the morning, they hung up.  I called back, because I really wanted to know who to complain to.  What crust!

They call, i answer, they say nothing, i say goodbye and hang up.  Have them marked in my phone as spam now...I realize this is their livelihood and bottom of the fish tank it is, but god, if I tell you to stop calling, please do so...called ID comes accross as Unassigned...Real proud company, eh?

This number keeps calling...won't ID self and leaves threatening messages

This number called twice today.  I am on the Do Not Call register.