Wildcard number blocking

Hi,
I'm looking for a method to apply the "blacklist" to a group of numbers. Specifically the CID of 800, 866, 867. It appears that those nonsense telemarketer calls use a toll free number to get around the anonymous block.

The government could save a lot of money by doing away with the "DO NOT Call" list and its staffing cost. Telemarketers do not abide and placing a complaint results in a nice reply that they have no authority, referring to the state for enforcement. The state then replies they are too busy to go after telemarketing.

In call routes enter the area code and 7 asterisks, example - 800******* 866******* - I don't blacklist them, I select disconnect which will reply with "this number has been disconnected . . ."

I occasionally get a legitimate call with a toll free CID, so I've routed the toll-free numbers (with wildcards) to voicemail. I've found that telemarketers never leave voicemail messages, but this arrangement allows legitimate callers to leave a message.

Thanks for taking the time to reply and for the information.