800-926-5052

Call then hang up.

Called multiple times in last few days. Did not leave a message.

has called multiple times in past few days... never leaves a message... does anyone know who this is?

calls a few times a day, no message left

Has called multiple time in past few weeks.  Never anyone on the line.

Has called 3 times today and left no message.  Then I received phone calls from an anonymous phone number with a 770 area code

has called twice on my cell phone so far today and has yet to leave a message

Rang briefly on my cell, and hung up before I could answer.

They called again, and I answered in time. It's Delta airlines automated notification system when flight schedules are changed. So if you get this call, you should have an upcoming flight with Delta.

called today at 9:11 am. I didn't answer and they left no message

Called 4 times without message.

Called at 9am EDT but left no message

This number called my cell phone today at 12:23 PM.  I did not answer, and they left no message.  My cell phone is registered with the Federal Do Not Call list.

Definitely Delta. Have flight coming up, which we know has schedule changes.

Called my cell phone at 12:08 PM Pacific... no message left.

It's Delta.  they called and left not message.  I called them back and told me of a schedule change.

Called 3 times yesterday and did not leave a message and once today

yo this number is from delta airlines. if you had recently bought a plane ticket they are calling you about a change in their schedule. the reason why there is no answer when you answer is because their automated system is messed up.

I have received phone calls from this number for the last 3 days, sometimes two or three times a day, always in sets of two, 2 minutes apart.  No messages left.  I am also on "Do Not Call" list.  If it's Delta, I would prefer an email about an itinerary change, not these annoying phone calls.

calling every 2 hours on my cell phone