I receive a phone call a few times a month from this or a similar number. When I pick up that is dead air for around ten seconds then it hangs up.
Other
4
Dec 1, 2015
Called me on my Verizon wireless line at 11AM EST. I picked up the phone but did not speak. The person or computer at the other end was silent and eventually ended the call.
Other
5
Dec 1, 2015
I received a phone call from this at 10:25 AM. When I pick up that is silent for around ten seconds then it hangs up...
Interestingly, 2 minutes later I received a silent call from 203-580-3521.