Received 3 calls from this number in one hour. The first time I picked up but said nothing & it disconnected. The second time I said Hello & there was no reply then diconnected. I called the number back & there was an option to Press 1 to be on a No Call List so I pressed I. Was called again within 10 minutes, I answered with a scream, they disconnected.
Received several calls from 404-400-7380 over past two days. Never left a message. CallerID shows only "Atlanta GA". Probably a spoofed number as are so many these days. Blocked future calls from this number with call blocker device.
Please don't answer the call with the intent to 'tell them off'. They won't remove your phone number from their list no matter what the person on the other end tells you. In fact, by answering the call you have verified that your number is a known good number and it's possible that lists are made with such phone numbers and sold to other telemarketing firms.