I've been getting several calls from the 484 area code, though they are not all the same number. They did not leave a message, and I'm not sure that they ever have. The exchange is for a town called Conshohocken in Pennsylvania and serviced by Level 3 Communications. Two things I know from these facts: One, I have been through Conshohocken on my way to Reading from Philadelphia about ten years ago, and I can attest that it is not really a hub of industry that would cause some resident there to call my business 2,000 miles away (no offense to the residence of Conshohocken). And two, Level 3 Communications, at least in my area, is an expensive, large-bandwidth, high-speed business internet and data provider, which tells me that this number is likely spoofed and dialed via a computer. Too bad, because that will make it very hard to stop. Highly likely this is spam.