281 305-3816 is a number in a group of numbers that call several times a day. The other numbers are 281 305-3814 and 281 305-3882, If you answer the call, no one responds. If you call the number back you get a message that the caller is someone conducting a survey on current events and you are offered you the option to opt out by pressing one. However, pressing one just results in more phone calls. I have had 12 calls from this group in the past week.
Called and left a very short garbled message. It was clear the robo caller started talking before the answering machine greeting finished. The CID said local call which should be a clue that this is a VOIP computer call. Suspect it's a political call.