called stated they were from Experian credit bureau wanting to qualify us to lower our credit card interest rates.
When I asked for more information about the offer, and mentioned identity theft and credit card phishing, the gentleman I was talking to, Josh,became angry and said "Don't you read your contract with your credit card?.  At this time, I hung up and called Experian and reported this number.
Experian told me "We do not call you or give out your number.  You have to contact us."

Keeps calling my 9 year old sons cell phone! We gave him a phone to be safe but these asshats keep calling during the school day and getting him in trouble

want to low my interest rate on credit card....no way...hung up on the recorded voice message.
406-426-3277

Yes, I too have received calls from this number, it is alleged fraud, they claim your on a preferred marketing list, but when you ask them how you got on that list, they either hand up or they tell you an alleged lie.

Report this phone number to the FTC and or other law enforcement agencies

No it does not I am on the no call list and I still get calls.