So I've received 2 calls from +63 63 884 399. I missed the 1st one on 2/17/10 but picked up the 2nd one. It was a man with a really thick accent asking for my DH. When I asked who was calling he said Discover. I told him that I already instructed them to take us off their call list as I had been getting several calls from another number 866-290-4961 where the person calling identified themselves as with Discover.
Based on the country code, these calls are coming from the Phillippines.
I did some googling of this type of call, and these are most likely scams. I have not found this specific number referenced anywhere so I'm putting it out here on the off chance someone else googles the same issue.
63 63 884 399