Who called from 6052040531

I got a text from 1-605-204-0531 that said:
THE CREDIT UNION CENTER ALERT: Your CARD has been DEACTIVATED. Please call 605-655-8363


I am naturally suspicious and ignored it and did not call, I check my card online and nothing was out of the ordinary.

On 9/25/12 at 6:18PM all 5 phones on our group cellular plan got the same text at the same time, sent from 605-204-0531 saying:  "The Credit Union Center Alert -Your Card has been deactivated. Call 605-655-8363."  We don't even do business with any Credit Unions, so luckily I didn't call them. Likely a scam to get a credit card number.  BEWARE!!