Phone numbers never go to voice message

[Paul DoCampo]

Hello everyone, I recently had a VA skip trace a list of about 100 NODs to find the phone numbers. I verified with a couple of the numbers to make sure the VA wasn't ripping me off, and they do match my skip trace. However, I just got done calling about 20 of them and all except one, never went to voice mail. It rang about 5-7 times and then the call ended. Anyone now why the majority would do this? Or just a coincidence ? Do I possibly have old/bad numbers FYI, I used been verified , and I believe he used the whitepages, and spokeo