These people keep calling my house while I am at work.  They call at the same time every other day and speak to my wife.  she tells them I am at work....

I want them to stop!

These people call every day 3 or 4 times.  I have answered and tell them to stop calling and they hang up.  I don't know who it is as they will not say.  When I ask, they hang up.

Yes, they keep calling my Dad. he has told them several times he is not interested, but apparently, they won't take "No" for an answer!

They call 4-6 times a day. They hang up when I answer the phone. I want them to STOP CALLING!!! This is ANNOYING!!!!

I get calls from (800)256-1536 constantly.  They appear to be an Exxon/Mobile third-party marketer.  I have told them to stop calling me for months now, and they won't stop.  I don't answer their call any more, and they never leave a message.  This is extremely annoying.

Whoever has this number has got to stop! When you call the number back, it says the number is out of service. Very annoying@!

Just called the number back and it said it was an offer from Exxon/Mobil!!!!!

Do not call this number any more.  My husband is disabled and cannot get to that phone.  If you cause him to fall or something you WILL be responsible.

We receive a call from this number 2 3 times a day.  We don't answer toll free numbers and if they can't leave a message on the answering machine, it just must not be that important.  We are also supposedly on the do not call list, but not sure it works.

This # calls 4-5 times a day, never a message either. I called this # back on my cell phone & got a message saying (not in service). They just called my home phone not 10 min. ago. how do we stop this??

my caller id said unavailable also,  so i dont answer those, if they cant put their name on id i dont talk   wish these people would stop calling

get calls from this # alot. Never leaves a message. Not sure who they are or what they want but until they leave a message I'm not answering. We're on all the do not call list too but I guess this # isn't paying any attention to the list.

800 256 1536 comes up Watchgaurd   dont know who they are

lefty no message who are they ? we are on do not call list.

call a couple of times a day 2-3 times a week leave no messagfes on ans service. if I ans they ask for my wife.called number back automated operator(male) states number no longer in existence. I am on the wonderful governments brainstorm   "DO NOT CALL LIST" It works like everything else they do.

Someone called from this number.  When the machine picked it up, they hung up.  Why bother to call if your not going to leave a message.  Must not be that important!

offering a deal. Said they had to talk to my husband.

Why do they continue to call when my number is on the "Do Not call List"

Got a call around 9:00 this morning. I let it go to voice mail. It was a prerecorded call. A woman's voice was asking for my husband and she said there was an issue with his exxon mobile credit card. I thought prerecorded phone calls like this were illegal. I refuse to talk to these people and I am not sure whether to give him the number or not. They want him to call them back. They probably just want his personal information so they can clean us out just the same as the rest of this latest trend of scam artists do.
It's so hard to know who to trust.

I am getting calls from this number 3 to 4 times a day, for the past couple of months.  When the machine answers they just hang up.  I've signed up for every do not call list possible, but it doesn't seem to help much.

1-800-256-1536 calls two or three times a day for my husband.  They refuse to leave a message.  I got fed up and told them I was going to report them.

It is from exxon/mobile and you can call back to request being on the do not call list from them but it takes up to 30 days for it to take affect so in the mean time they continue calling. I do not answer when it's 1-800 number and they have been calling us for over a month 2 or 3 times a day! VERY FRUSTRATING, we have been on the national do not call list for almost 4 years, IT DOES NOT WORK, WASTE OF TIME!

How can they be rude if they did not leave a message ?  So your phone rang and that is rude ?

Same here....I called it back and it states "Exxon Mobile Credit Cards...we were attempting to contact you for a marketing offer".  They give you an option to be taken off their list.

My phone number is register with the Federal DO NO CALL, and I keep receiving calls from this number. The phone rings and as soon as I pick up they hang up. I called back and a recording informed me that I had just received a promotion call from Exxon-Mobile.

Getting calls from this number every day for the last week.  We never answer  1-800 calls and we are also on the do not call list - they never leave a message - if it were important a message would be left.

I got a call and they refused to identify themselves. I asked who was calling before I acknowledged I was the person they wanted. They replied they would call back later. I told them not to bother, I am on the do not call list.

I got a call...I did not answer...what/who is this?

Today I got a call from this number. They didn't leave a message. Very rude!