Who called from 3123400577

Called my cell phone - I did not answer - they did not leave a message.

Just received a call from this number while at work. I didn't answer and no message left.

Received a call from this number on my cell today, but it only rang 3 times before they apparently hung up. No voicemail.

These nuts call 2-4 times a week. They've called 2 times in a day.
I didn't answer and they didn't leave a message.
Annoying jerks.

Called twice around 4 pm, phone rang twice, no message