If you have an android phone you get these on, then go to the app "Block Calls Get Cash" . This is a lawyer referral service that auto receives any calls you block and then they will analyze the calls and take the caller to court. It is free to you, but you can get up to $1500 for each lawsuit processed. I use them and I do well with extra money and blocked callers. If these calls are coming thru cable you could forward your calls to your mobile. Oh, and there is no limit to blocking.
We have caller ID at work and this number literally showed up as "Telemarketer." Picked it up and "accidentally" dropped it back on the hook. I wish more telemarketers' caller IDs were so honest.
SEO scammers.
This company uses hundreds of phone numbers so it's hard to put them all on ignore in my phone. Once I block from one number, they call from another.
Tell them to Fu%^%$ck off and the more people will do so, the less inclined these scammers will be to continue their spam and scam