+2030063103
o2
Called back and told "Sorry but this mailbox is full and cannot accept messages" in an American accent. Hope I don't get charged for it.
So annoying
I received 2 calls from this number this evening trying to sell me Vonage VoIP services.
After transferring me to a supervisor because they could not accept I already get services cheaper than they provide, he hung up, twice, as it appears he did not believe me.
Didn't have chance to find out how they knew my number