We've been geeting calls from 402-223-2175 and doesn't leave a message. On the call ID it says Custom Response. I called the number back and asked why he was calling our number and he hung up.
Been getting these calls as well. Just decided to try a couple of strategies.
1. Take the call. Immediately say "can you hold on a second" then put the phone down and let them hang on as long as they like.
2. Pick up the call and repeatedly press the # key. Apparently, if this is an automated call, it will signal their system to delete. Not sure if actually works or not.