I had registered a new domain name just days before - this caller apparently monitors new DNS entries and spams the registrant, hoping to con a n00b by selling them overpriced SEO "services" (which anyone able to "google" could do themselves for free). Not a total scam, yet somewhat predatory in nature. They did ignore the DNC, however.
These Scammers keep calling all the time,laughing then hanging up when answered. Master Scammers : -Level 3 Communications C.O
-Onvoy Communications C.O & -Peerless Network C.O. have over 10000 public complains of spoofing,spamming,cloning and still going strong ! They will be reported to FTC for electronic communications harassment!