877-842-7339

It might be Constellation Energy, according to some other posts I saw about this number. I have my gas account with them. On Sept. 24 this number called me 4 times in 1 hr. 15 mins. Same number called me every 30 minutes for 4 hours on August 27. I didn't answer. I assume  Constellation is trying to get me to lock in a new gas price, because they have a notice on the bill about it. Not interested.

I received an automated message threatening that I was delinquent and they would turn me over to collections!  I have never even heard of this company, don't have an account with them and never have.  I certainly would never have one after this call!  It's a scam for sure.  They wanted me to input a credit card number.....yeah right!

It's Constellation Energy. If you are late on your bill they will call you multiple times a day. However, they aren't always in the right. They have called me 5 times already today (I didn't answer) even though the bank paid my check to them YESTERDAY.

Same experience here

They keep calling saying or leaving a message to call back and speak to constellation energy’s credit dept.  when I do it is all answer machine when I select 3 phone goes dead. I called CE after googling their baltimore office number They say my account is fine as I knew it was; they opened a ticket with security that was two weeks ago. I am still getting these calls.