I have Comcast; their customer service representative told me about a function where I can block specific phone numbers. Hope this works.

IALSO HAVE COMCAST, HOW CAN I BLOCK THESE #"S

This is extremely annoying!  I get calls from this number all the time, 4 calls just 2 days ago.  I don't speak Spanish and I don't have any children.  It always goes to my voicemail and I have to use my cell minutes to listen to and erase the stupid messages.  How did they even get my cell phone number?  I've only had this number a few months.

I had a few missed calls from 213-412-1170 & finally picked up the call. It was a recording from a High School counselor inviting parents to a parent night for sophmores & juniors regarding graduation requirements for our high school.

Here's how do deal with this... these numbers are owned by a company name Teleparent. I had to call the telco, LA Unified and two auto dial companies to track this down. It was a major pain, so hope this helps:

Keep a log of the numbers calling you and then call Teleparent:

800.6077