Apparently this number is a scam about saving money on your gas bill. When you press the various choice numbers to opt out or talk to someone it just lets you sit there. There are lots of feedback messages from lots of people that these jerks are targeting.
Called and left no message. I don't live in the state of Washington and we don't have a gas line that goes to our house so I guess "UTILITY SUPPLY" is out of luck. Out of luck too because I dont answer the phone unless I know the caller. Reporting to FCC.