its Sprint calling for a rep. to "check in and see how things are....."

Sprint customer service rep.  Called back and hung up once I heard it was a customer service rep.

Received call after call and everytime I answered..nothing.

Got the call, just silence

Received the call again.  Did not leave a message (again).

called the first time and imediately hung up. Next time just sat on the phone but didn't say anything.
Not liking where this is going!!!!

Same here, answer the phone and all I get is a dial tone.

I called the number using a land line. "Hello, this is Sprint..." It was a customer satisfaction call so I just hung up.

Yep, Sprint.  

nobody talked, it just hung up after I answered.

It's Sprint. I got the call twice this week. When I called back an automated answer said they want to check my satisfaction with their service.

Many calls from this number...a recording and then I called back and it was some financial group.  Told them not to call again...they did.

From 877-354-1794.  Garbled recording.  I called back and got a Sprint recording saying something about them wanting to see if you were happy with your service... please call this OTHER number... most likely some kind of telemarketing scheme, as if we're not already spending enough $$$ on telecom.

I called back on a land line and it was a Sprint customer service rep.  I hung up and did not talk to them.  Sprint has really bad customer service.  I did not want to talk to them because they are crooks and might use this call to bait and switch my cell phone plan.

same as above, took no action

same thing called my phone and left no message, i didnt return call

Got call from same number answered and there was a delay then heard some foreigner... I hung up immediately

Answered on the third call after two no messages. It was Sprint, and they just asked me a few questions about coverage in my area and satisfaction with service and my phone.

Called back after about the 10th time they called me.  I seriously haven't got a clue what they want.  Maybe they wanted to sell me something?  

I told them not to call again and then they asked for my name.  When they said They needed my last name I refused.  I would suggest asking for a manager and keeping them on the phone and pestering them.  Make it so it's not profitable to be calling you.

called today at 4:40 pm. left no message. if sprint, i better not be charged for this.

Call is coming from Sprint/Nextel.  It is probably someone calling about your service but needs to log the call but doesn't want to do the work.

I get a call from this number every morning around 9:30! Then sometimes they call in the afternoon as well. I have not answered, and hey leave no message.

Left no message.

Same as above.  I get a call from this number, at least, once a week.  Sometimes, they leave a message regarding a pyramid scheme, but most times, they leave nothing.

Same story as above.

Left no message.  I called back and was immediately connected to a Sprint/Nextel representative.

Left no message