I too got a text to land of simply "hey". It was left on my voicemail so the phone number was cut off (just the last 2 digits got recorded) but fortunately the Caller ID captured that information.
I also got a call saying there was a text to landline message, and to press "1" to here it. My caller ID said "william David." Phone number was 305-742-8311. Since others have gotten the same call, I assume that it's a scam. There may be a charge incurred by pressing "1" AND for all we know it's a big charge generating revenue that he pockets. Or, maybe it's another kind of scam.
Got a text from this number saying "Hey." I made the mistake of texting back and asking who it was. Today, my phone company told me that someone had tried to gain access to my account via the internet.
I too got a text to land of simply "hey". It was left on my voicemail so the phone number was cut off (just the last 2 digits got recorded) but fortunately the Caller ID captured that information.