Tons of calls from my area code 520 with various phone numbers in the last 4 weeks. No message ever. No name on caller ID, just "out of area". usually (520) with prefix 338,265,277,428,261,232,480,210,231,471,290,277,271, etc
Probably fake CID numbers with local 520 area code to try and get me to answer the phone. Using different numbers to make it hard to use call blocking. 38 calls from different numbers in 4 weeks.
I'm on the do not call list so these are most likely illegal spam/scam calls.