agentleman27 said:
Any chances the number called was an 800 number?
FYI, agentleman27's point is that whenever you call an 800 number, they get your phone number, regardless of ID block. (I know, I have several 800 numbers.
)
You could also try using a calling card from your cell phone. That usually returns the calling card company number as the ID rather than your phone.
(Hell, for lots of international calls, I have my cell programmed to use a calling card to avoid the high direct-dial rates. In some cases, my cell won't even make the international call.)