So I'm receiving these odd calls...

Question

So recently (the past couple of months), I've been receiving calls from some odd phone numbers.  Usually they call at the same time of the day (around 9:30am-10am EST) and they're numbers I've never seen before.  Today, the first call came from {edited for privacy} and the 3 subsequent calls came from {edited for privacy} (according to the caller ID on my phone).  Past calls have been from numbers similar to this but not always the same.
Usually when I pick up, I hear some static but can hear someone talking in the background (like they butt-dialed me or something).  On the 4th call today I received, I asked "Hello? Is anyone there? Can you hear me?" and I heard a woman say "Okay" and then there was static and she hung up or we got disconnected. 
I googled and found that 707 is the area code for northern California but the 82 number doesn't make any sense to me.  All signs point to South Korea (+82 is the country code for South Korea).
Has anyone else received these phone calls or something similar?

Answer 1

Since both numbers have 707, I suspect the 82 is a code for something.
Which I did find this explanation."When you have a permanent block on your cell phone number you will need to dial *82 before dialing the number you are calling."  So it is a cell number in the 707 area code calling you. Basically it is a code for some cell companies to block the name of the caller but not the number.
Why not do a block on those two numbers for a short time using the blocking option via Verizon.(Do not include the 82 for the second number)
Log into you account, click on the HOME tab and choose Block and unblock numbers.