Been getting these calls today, about 4 rings then it stops, about 10mins later it calls again 4 rings then stops 2-3 times so far this evening. Did not pick up, no messages.

Same thing is happening to me as Joejack above.  Hope someone can clue us in. They ring and hang up before answering machine starts.  I will not call back.

Getting this caller at my place of business. Caller ID reads "Irvine, CA". It's a robocall, and when you answer, there's a delay before a person gets on. They said they are from some chiropractor's office doing free consultations. There's probably a point where they pump you for information (which they can sell and use against you). Definitely a fly-by-night operation of low-lifers.

Got 4 calls so far today from this number.  One at 4:55 Caller ID- V21716555600002, 5:34 Caller ID- V21717345300002, 5:46 Caller ID- V21717465000002, and 5:59 Caller ID Irvine CA. If it's a chiropractor then I'll have a long drive cause I live in NJ LOL. I just wonder what all the first ID numbers mean... robocaller ID's? Spoofs?  Whatever, I'm not answering.

Answered call from 949-431-2600.  Foreign accent claiming a chiropractor by the name of Dr. Reen in my town is offering free scans and xrays in exchange for bringing one canned item to his office. Hung up on caller. They call repeatedly throughout the day and do not leave messages.