Called 6 times with same intent as stated below.  With caller ID, we just ignored them.

Like you, I have too gotten repeat phone calls.  It is indeed a company based out in Sugar Land.  Good news, if you call that number, it goes directly to them.  I implore everyone who has been bothered by these tools to create craigslist ads with their phone number.  It can be simple fake ads like offering cell phones for cheap, or gay sex.  They make money by cold calling.  I figure if just half the people here make ads on craigslist with these people's number, they'll be getting so many calls, they'll have to change their number.  
Good hunting.

this number call and don't talk, what is it? what they whant?

Called six times in short amount of time..picked up and it was about some state run program that gives away money for energy conservation...wanted to make an appointment to come to the house.  Needless to say that was declined.  This occurred on Labor Day, looks like they target holidays.  SCAMMERS

Got 6 calls from 713-234-5296 within 15 mnutes

This horrible number just keeps calling 8x in a 10 min timeframe
What a pain!!

I guess I'll be plugging in my fax for the next week.  It iwll eventually be deemed as a fax number.  If they want to call my house and not answer when I pick up... then I hope they enjoy my "hold music"!  friggin idiots!!

bi*** name jackie called my # 7 times in 5 minutes, everytime i answer they would'nt talk. then she had balls enough to argue with me that she did not call her computer dials random numbers
!!  I have all calls on my caller ID, all 7 of them.....she said she was with energy conservation group i told her to f*** off she started cussing so i had to get hateful, stupid bi***, call me again i dare you !!!!!

Same as all the other posters:  calling right now 6 times in a row.  No message left.  The caller isn't even waiting for the call to roll to vmail.

This number called EIGHT times in a 10-minute period, twice leaving 2-second "empty" voicemails.  They show up on caller ID as "unavailable."  Well, so am I (to them)!!!  Blocked.

Caller said the government was giving 5% back for energy usage.  Did not give company name.  I cut her off asking to be removed from her list.  I bet I will get called again though.

I've received several calls from this ph# in the last few weeks.  They keep asking for someone named Centanni, which isn't us.  I've told them they have a wrong #, they said they'd remove mine from their data base, but they haven't.  They just keep on calling.  They haven't given any sales pitches & when I called the #, it sounded like a kid answering, but whomever is calling sounds like an adult, black person.  I just want them to stop, whatever it is they are attempting to do.  Is there any way that someone can have that # disconnected?  Just curious.

(281) 557?698?4, (281) 557?698?5, (713) 234?529?6, (281) 915?299?7, and maybe (281) 940?148?4, (713) 496?381?5

I don't know if these are all from the same company, but I get about 4 calls per day and each day it's a different phone number. No message left.

These vermin called my momma's house over and over, scaring her to death.  I am heading down there to take care of some legal business with them.  They will never bother her again.

Received 10 calls in 21 minutes from this number.  Didn't answer the first three or four times, and the person did not leave a message.  On the fourth or fifth call, I answered and the woman called me by name and started her sales pitch--about an energy conservation service.  I cut her off and told her I was not interested and to please remove my number from her call list.  My phone rang five or six more times immediately following that conversation.  I answered the tenth time and didn't even give the person an opportunity to speak.  I said, "Do you realize that you have called my house TEN times in the past TWENTY minutes?!!?"  They hung up and I haven't had another call-back...yet.  That was twenty minutes ago.  Hopefully that's the end of it...if not, I intend to call my phone company and see what they can do.  Very aggravating!!!

Talked with "Ashley" who claimed she worked for Global Green. Asked why calling multiple times on weekends and said she was working and that the calls were being routed out of Dallas. I am on DNC list and filing complaint with FCC: https://esupport.fcc.gov/ccmsforms/form1088!createConsumer.action

Highly recommend taking 5 minutes to do the same -- it's up to 5k for each call I believe so should help stop scammers.

The people claim to be with an energy conservation company.  They visited my home stating there is governmental assistance up to 5000 to make your home more energy efficient. Then the representative a male asked to see our utility bill (never showed it to him) then asked about our credit saying we have to qualify by our credit (I don't use any credit) then asked if his company can check my credit score (umm no you can't) then said they have to qualify us so they need out driver's license number( umm no way).  The guy was completely nervous.  I escorted him immediately out of my home.  My husband said he was creepy. I did not trust these people. It looks like and feels like a scam.

Called 10 times in a roll  on my cell phone. No message. Very annoying.

same as others ..Called 6 times today. Sometimes a few minutes apart. No message left. And many times during the week.  I will not answer.

The same thing happened to me called 3 times same number but different caller id. Scammers, and they did not leave a message.

Called back to back 5 times within 10 minutes.  Didn't answer.  Others have said the call is from some "energy conservation" company wanting to do an audit.  Sounds shady to me.  Didn't ever leave a message.

Called 8 times within a 13-minute period. My number is on the no-call list, and I NEVER answer if I don't recognize the name or number. Wish being on the no-call list did some good.

it's telemarketing branch of Green Monster USA selling radiant barrier for attics at super inflated prices. They call out of Euless TX and use spoofed numbers.SCAMMERS

Telemarketer crap. DON'T ANSWER AND REPORT NUMBER

They called 5 times in a row an when I finally answered she asked for me or my husband an I asked why she called 5 times in a row. She stated it was her first time an I said no it wasn't an that we are on the do not call list. She stated she wasn't selling anything an with the energy conservation an I said not interested an hung up

Got a call this evening 7/11/2013 and the caller ID read Sugarland.  The lady said she was with an energy conservation service and calling homes in Spring, Tx to see if they qualified for the "free stimulus". Wanted me to answer some questions.  I explained the government was broke, and there is no such thing as "FREE", taxpayers would be paying for this.

Called my mobile phone 6 times in a row. I also thought it would go to voice mail but never did. I finally answered and she said she was with the Energy conservation company. Told her not interested and hung up.
Very nuisance and pestering

Called back to back. After the 4th time I answered, thinking it might be an emergency. I was told it was the energy conservation program. Like a dummy I took the bait and scheduled an appt. I called 1-800 number to cxl and got some dude's vm. He did, however, state in his vm that he was with the Energy Conservation program. Called the 713 number back and cxled there as well. I asked the girl if she needed my confirmation number and she stated that she had all my info already. Yes, I am a dork for having listened to them in the first place.

Whatever happened to the Do Not Call list anyway?  What a joke. This number keeps calling and hanging up on our answering machine.  So ANNOYING.

This number called not leaving a message then called back asking for "Mr. or Mrs. " of the house. I did not answer the phone. They just hung up not stating who they were.