Received call 12:00 Thur 17 Jul 2014   Wanted to verify my date of birth and Social Security number.
When asked who was calling irritable lady identified herself as Laura and company as Celeco. I was not sure what this was about lady hung up on me before I could respond.

Same thing happened to me this morning.

A woman wanted me to verify my date of birth, last 4 of my social or billing address. Irritable woman said she couldn't give me any information about the call or the company 'celco' and the call was from my own security. She said she had all the information pulled up in front of her but I needed to give her my info for her to continue the call.

I hung up.

Same as previous posters, woman asked me to verify DOB, SSN, and address. Said she was calling from Cellco. I said I didn't know what the call was about or what Cellco is and she said I had an account but she could not share any other info with my verification. She got upset that I wouldn't give my info and I hung up.