I got a couple of calls from (253) 292-2704, I picked up the phone without saying anything waiting for the other end to say something, but no one say anything. I hangup. Later I decided to call back that number, then I got message saying "press one to remove from calling list". I pressed 1. But within two hours, another call from 253-292-3383 called. Both displayed ID as Tacoma, WA. I blocked both numbers from my end.
call at 6pm PST. Caller did not identify himself or company, asked for my wife by first name. I said she wasn't available and asked for a message, he said he'd call back later and hung up. Calling back gives you a message that says you can unsubscribe from future calls by pressing 1.
Earlier in the day got a call from (253) 292-2704 with the same message when you call it back, so I believe both are related.