No I'm from Minnesota and no I did not Google the number I did call the guy back but apparently they're updating the system to make sure the addresses they have on hand are current 4 pension information.
If this happened out here I would call the Teamsters Benefit Trust , a number that I know is good and ask them. you should call your pension trust administrator to see if this is legit.
we get emails all the time from ebay, paypal, amazon , and others to update info which is a scam to get personal info. I know you got a letter but I would check with people and numbers you know before I gave out any personal info especially over the phone.
we got a letter asking if any of our info has CHANGED like mailing address, phone number etc and was told to ignore the letter if everything was the same. also asked if I had worked during the past year and needed to list places of employment if applicable.