In the last year or two there's been an enormous uptick in telemarketers and scammers spoofing caller ID to some number in your area code....
The scumbags are spoofing more than local numbers. A recent scam here focussed on vulnerable elderly, with a conversation that suggested there is a problem with a bank account or credit card and that the victim should report it to the police. They say good-bye but don't hang up. Instead they send a spoofed dial tone down the line and wait for the victim to dial.
Then the scammers "answer" as if they are the police and suggest the victim needs to talk to a police specialist. With the victim thinking they are talking to the police their personal information is more easily acquired. As well, the "police" ask the victim to participate in a sting which involves providing money for bait.
You can guess the outcome.