8664633021

Called me twice today.  I did not answer as I didn't recognize the number.  My cell phone has been registered with the DNC list, but my provider is Sprint.

Keeps calling me and saying "Hello hello hi hi there! How are you hi hi hi!" It's stupid, I know it's sprint, they keep calling my whole family's sprint cell phones.

Received calls from this number a few times. i never answered 1800 or 1866 numbers. Then i saved this number and named it "do not answer".

Marketing call from Sprint - the guy I talked to last Tuesday was very pushy.I told him Not interested in upping my cell minutes which would mean paying an additional $10 to my cell bill & that if I want to up my minutes I will call them.He said thank you then hung up.Since then, they've called 4/7,9th,10th & 11th.Everytime they call, I hit the decline button on my cell & immediately report them to the National Do Not Call Registry.Very annoying!!!

If your a customer they can call you even if your on they do not call list. You would have to tell them not to call you for promotions.

I've been getting calls most week days from 866-463-3021 for quite some time now.  I'm almost always at work and they never leave a message.  It's annoying.

received a call on my cell but did not pick up. I do not give out my cell phone to any vendor with which I do business. They all have my home phone number (12 years).

Called and hung up.  What do they want?

I've gotten 3 calls from this number in the last 24 hours. I know I'm eligible for a new phone, but I don't want to sign a new contract right now because I'm looking for a new job and will likely be moving by the end of the year. I haven't answered any of these calls, but if they call again, I'm going to answer and request that they stop contacting me. This isn't the first time in the last few months that I've been getting calls from Sprint, and I think it's obnoxious that they expect us to use our minutes to talk with them. If I want to change my plan or phone, I'll go to a Sprint store.

got call & heard gobbledygook words & hung up and googled the number and ended up here & I wouldn't have answered except I was in parking lot and couldn't see number display because of the sun

They have called six times from -3021 and -3019 for the past week.  I've never answered a single call, since I don't recognize the number and they never left a message.  

Once my contract is up, I'm planning on leaving them anyway.  Sheesh.

Sprint is my carrier.  I have never answered these unknown calls but they started this week at least twice a day.  I am going to put my number on the government do not call list.

After several daily calls, I answered. Woman said she was from Sprint/Nextel, I told her I wasn't interested and that I was hanging up. Since then, they've started calling from 877-671-1851.

After they called me several more times and I missed the calls, I finally answered one. As soon as the woman identified herself as being with Sprint, I told her that my call history showed over 10 calls from that number in the last week. I said that I'm not interested in changing my plan, and that if I received one more call from them, I'd cancel my service. I haven't received another call.

I have been getting calls in the early evening from this number but the caller does not leave a message.

You can email Sprint & ask to be put on the DO NOT CALL list:
officeofprivacy@sprint.com

I have received multiple missed calls without a message left ever since I purchased a new cell phone and renewed my contract with Sprint/Nextel.  This did not happen to me under the old contract with the old cell phone.  If it happened on my computer, I would simply click on "report as spam", but I do not have that option.

I've opted out of Sprint Marketing calls... and they continued.  I complained and now they are calling multiple times daily.  My Verizon phone arrives tomorrow and my phone number will switch to them -- maybe Verizon will be more helpful stopping these Sprint Marketing than Sprint Customer Service was.

we've been having very serious hacking problem at home. we believe it's from someone knows us, his wife works for cia and using the cia spying technology to spy on us. no only this number 866-463-3021 but also a lot others, also spy on our whole computer internet and whole phone line at home, cell phone, whatever

I'd get multiple calls per day from this Sprint number.  They ignored my requests not to call.  After more than a month of this I moved my phone number to another wireless carrier -- and the calls stopped.