How To Block Caller ID
Information on blocking and un-blocking your Caller ID Number when dialing out
o Permanently Block Caller ID
* Federal Legislations
* Permanently Blocking Caller ID
* Blocked Caller ID and Toll-Free Numbers
* Software to block calls on caller id information
* USA: Dial *67 before you dial the number. If you have Caller ID blocked permanently, dial *82 to unblock for a given call.
There are many software products on the market that can block certain calls depending on their Caller ID information. We have information about around ten such products, some of which are free. Click here to see the list.