They are "riding the wave" as many communities are having or had Koman races and events.
Just like the spike of police/fire scam calls around 9/11. These scammers really deserve a very sound thrashing. But we'll get back at them by shutting them down by not answering and blocking their calls.
Thats a bit weird on its own unless your using one from the phone company. If that is the case, then generally will not block such spoof numbers. If you have a newer device hooked up and it has area code blocking, that is the better way to block.. by the area code! I have found that some of these places will continually use the same area and prefix codes but change the last 4 digits to keep getting past the block.
And Charities are supposed to keep a internal DNC list BTW. So they can get into trouble for not doing so.If your in Oregon, it also breaks state laws as Oregon does not allow charity calls period.
I have gotten calls from these frauds at least 6 or 7 times. They use several different numbers. I suggest that you Google United Breast Cancer. They have a history of fraud that goes back years. Because they are a charity, they are not bound by the Do not call rules. Just block their phone numbers. They are persistent. Don't contribute. Eventually they may stop. They also use CCI, a collection agency for their attempt to get your money. Don't get sucked in.