Are 800 # not available when calling from Canada?
Depends on the 800 number, some block from different area codes or countries.
Some 800 numbers go to different companies when calling from the US vs Canada.
(If you call ING's 800 number when you are in the US, it goes to Capital One instead).
Some toll-free providers charge much higher rates for calls from US or Canada, so the companies block them, or have a different one from a different telecom provider
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