Why would Verizon use an AT&T landline, they are their own phone company. All of my Verizon "collection calls" are from the Seattle area, the WEST Coast! In my area there is a HUGE phone scam going on.
And to make my point-- I do not have an overdue Verizon Bill.

We live in Oklahoma and don't have a Verizon phone or service from them and yet we still get calls from this #.

I had an account overdue almost a week -although I'd called and gave them  the date it would be brought current- I still received various calls every few hours.  

Some calls left messages, others did not.  The only option available to the phone messages was an immediate credit card payment.  No possibility of speaking to anyone.  Just your nose pushed into their PAY US! blood funnel.

We got a call from this number and they just said they were Verizon but they hung up 1/4 of the way through on our voice mail. We called 611 and our verizon bill is just fine! What a scamm number!

Stop calling me! I have no idea the whereabouts of Michael CosgroveMichael. And stop using different numbers!