Every time I would get these calls, I would redial the number and still got the machine. I went back through my call history trying to call some other people that had called me with the same result, a machine telling me the number did not exist.
After they hung up, I went to my contacts and hit redial the answering machine said that number did not exist. One day, I got a call and, like usual, I said I didn't know Sarah. Sometimes, these calls came at three in the morning. For the next few months, I would get these calls asking for Sarah about once or twice a week, coming from different numbers and different-sounding people.
I told them they had the wrong number and they hung up. One day, I got a random call asking for some girl named Sarah. "Until a few years ago, I still had a flip phone.