Q: How do I block my phone number

Contact your carrier

Settings > Phone > Show My Caller ID = "off"

I have it on my iPhone 5S running iOS 7.0.2 with AT&T in the U.S.  It may be related to your carrier, and/or GSM.

The above is confirmed here:

http://support.apple.com/kb/HT4515

If you're using Verizon and making calls within the U.S., there's another way to conceal your caller ID:

Simply dial *67 before the phone number.

For example, if you're dialing (415) 555-1212, dial *674155551212

.

Your turn

do you think it is the great point god (or goddess) looking over all to make sure it all comes out in the wash (as it were)?

We make a great tag team, buddy!

GB

I've always been able to do it through my phone?

At the moment I go to Settings > Phone > Show My Caller ID >

And it looks like with the new settings if the button is green your number IS showing.

And if it's grey/ that it's NOT showing your number.

But when in doubt I always check by calling another phone to test it