Received call at 726am.  No caller name provided.  When I returned the call I was connected to an automated answer machine asking me to provide a name or extension number which I didn't have.  I hung up.

They say there are tech dept. for your computer....BLock them - up to no good.

Have had 4 calls from different fake tech support organizations (in different states) this morning.
My online blocker allowed only one ring, and the frequent single rings from all these fools remind us we are under telemarketer seige.
It started when a child here almost gave them access to a laptop, until I overheard her say on telephone - "If you are from Microsoft I guess I have to give you control."  Since then multiple calls every day from various cities and states all over the USA and Canada.  Likely all spoofed international fakery, they are predatory liars cheating the gullible.

I have received numerous calls from this number; out of Boulder, Colorado, which claim my email activity has been flagged, and they would like remote access to my computer to correct the problem. However, when they are told we have on staff tech support, they hang up on me. DO NOT EVER GIVE THEM ACCESS TO YOUR COMPUTER, they will lock it out and blackmail you to pay them some amount of money, before they give you access to your computer again. ALWAYS call your email provider if you suspect a problem, and NEVER trust some third party who just calls you up.

These guys have called me for months from various numbers, even pirated numbers of legitimate businesses. Want to perform "follow up computer maintenance" I've "already paid for" just allow them control of my computer.  I suggest report and block their number.