Our landline number has been hacked. Got a call from our own number that was an Amazon customer service scam.
It's called caller ID spoofing. Scammers can set their caller ID to anything: the White House, the FBI, SSA, the number they are calling, anything at all. Never trust caller ID.
For more information on this version of caller ID spoofing, see any of the many article links at https://www.google.com/search?q=caller+id+my+own+number, for example, https://www.consumer.ftc.gov/blog/getting-calls-your-own-number.
