Claimed to be from Sprint, but my phone listed the call as coming from British Columbia, no company name listed.  Wanted my address and PIN number (!) -- refused and called Sprint directly -- they don't know anything about this number, and said I was right to refuse to give info.  It's definitely suspicious

I have had four calls from them.  Good thing I did not answer them.  I had already called nextel directly.

These are people calling from British Amerrica, so do not pick up thenumber because sprint will charge u 39cents a minute and DO NOT GIVE THEM ANY OF YOUR INFORMATION!!! Luckily, i never picked up for this number, so don't didn't get charged, but from what I heard from others that they got charge.

called to ask for last 4 digits of my ssn

I answered, Said it was Sprint.  Advised me my account was stolen.  People are buying phones using my account.