Who called from 2609200000

Received a call from this number claiming to be the Internal Revenue Service (IRS) saying that they have been trying to reach me and a law suit was pending. I was to call (206) 855-5833. I did not call the number given. I'm sure the IRS does not make threatening phone calls and this web address (800Notes) shows no listing for the (260) 920-0000 number,

There is a widespread IRS (or CRA) or "tax scam" being  practiced by scammers on both USA and Canadian residents.

USA tax payers should read this:
http://www.irs.gov/uac/Newsroom/IRS-Reiterate ... -Telephone-Scam

Canadian tax payers should read this:
http://www.cra-arc.gc.ca/nwsrm/lrts/2013/l131210-eng.html

Short answer:
The IRS never initiates a contact via phone.
They always send a snailmail first.

Educational post:
This scam is also described as scam #11, here:
http://phonehelp.2truth.com/facts_rev.html

If you were contacted by an IRS impostor, you may file a report, after clicking on this link:
http://www.treasury.gov/tigta/contact_report_scam.shtml