will the number you called from (not the calling card number) show up on their phone bill? I know that when I am actually making the call the caller id does not show my number, it shows privacy manager or unknown call, but when they get their bill at the end of the month will they be able to see the actual number I called from?

Normally received call numbers are not mentioned in the bill.
Anyway, it depends upon ther telephone service provider.

if you used calling card – probably not.
the will see number pre-programmed into the provider switch – not yours

if your number is blocked then no it wont show up… however more and more calling card companies are passing the caller id from the originating telephone number, you used to be able to call from a calling card and remain some what anonymous, but that is no longer the case… unless you use a spoofcard or something similar..
if your number is blocked it will still be blocked..

A phonebill won’t tell you which numbers called them, but only numbers they themselves called.
It should also come up as unknown on caller ID. I’ve phoned the US quite a few times using a phonecard and the number has never appeared on bill or called ID.

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