I believe someone is "Spoofing" this number.
Thats why, when you call back, the number doesn't exist.
An old trick but still useful.

Oh, and to the poster who mentioned Padre Vavra... thats a jeweler in california... but thats not his number according to his website.

It was Network Solutions (www.networksolutions.com) following up on a trouble ticket i submitted on their site for my web server..  not a sales call.   Tech support to fix the problem i had.

Yes, it was Network Solutions. I also submitted a ticket to them. It was a survey on their service

Network Solutions (domain name registrar). They've become aggressive in the last few months even toward existing customers. Every time you renew or purchase a new domain, they try up-selling the hell out of it and repeatedly calling you to take a survey. They don't stop until you take the survey or blast the hell out of a telephone attendant ... until the next time you purchase something from them. Because they seem not to get the point (or don't care), they've just lost a long-time customer who's never used another registrar since his first domain purchase in the 90s. I'm actively looking for a new registrar to which I can transfer all my web properties.