My caller I.D. indicated "Deerfield, Illinois". Annoying as hell. I recently had a conversation with someone who claimed to be IRS, thinking I could tell him to stop calling me, but instead he told me not to F*&k with him and called me a tax evader and check writing scammer. These people are getting bolder by the minute.
Unwelcome call on my unlisted land line @6:37 p.m. on 5/19/2016, There was no message left.I hate running to see who is calling. This is very annoying. I will block it, but really I can only block 250 calls and I keep getting 5-10 calls a day. Sometimes I delete a number from months ago only to have to re-block it. Some of them are the similar exchanges. Thank you for this site that helps us identify these spam callers.
There is nothing technically special about your phone number, any person can dial it, including automatic dialers. And that is why you are getting so many calls every day. Your number might be in an exchange (the middle three digits) that has long been associated with high-income people, so the scammers are always trying to work the 10,000 possible numbers in that exchange.
What being unlisted means is that your personal information is not linked to that number, so the scammers are calling not knowing who might answer the phone.
Have you tried blocking specific area codes? Particularly the 876 area code?
You can get stand-alone call blockers that can add more numbers for your list of blocked calls, particularly specific area codes, so that your 250-capacity blocker can handle calls in area codes you cannot block.
Why spend the money on a call blocker? Seriously. It's not like these are important phone numbers used all the time. They're disposable phone numbers, likely from pre-paid, inexpensive phones or from online where a random phone # is generated. They're used a few times and then disposed of for another number. Call blockers are inventions designed to make the inventors very rich at the hands of ignorant people that feel they are a must-have like the toy you wanted at Christmas that you played with for a while and then forgot.