Blocked number Caller ID

Yes, unless you have chosen to not show your callerID. Blocking someone on your device makes no changes in their device. Your callerID will go through unless you’ve chosen to block your callerID.

Blocking an incoming callerID has no effect on your outgoing calls.

Yes your number will show on the recipient's caller ID even you blocked the recipient's phone number on your iPhone.

Short answer is YES.

Axel F.