Utah credit card holders should not release their account numbers to callers claiming to represent the Salt Lake Credit Card Bureau, the state Consumer Protection Division says.

Callers are misrepresenting the connection to the bureau, the division said, in requesting credit card numbers and expiration dates "to verify accounts because of a massive computer failure."The Salt Lake Credit Card Bureau six months ago changed its name to TRW, division officials said, and has not experienced a computer failure or authorized the consumer calls.

"Anyone having received this type of telephone call is encouraged to call the Division of Consumer Protection," the state agency said.