Trace back private phone numbers?

Question

some1 prank called me at 11:30 last night using obscene language and they probly dialed *67 to make it private but i want to no how to trace it back or at least getc the # thanx

Answer 1

its too late now, but you can use *77 so they cant get thru....!

*77 which is ACR....anonymous call rejection....but you can call your phone provider and add the caller trace feature to your line....!

Note that the "Call Trace" feature, 11-57 or *57, which is intended

only for serious harrassment threats (i.e., death threats and the like),

where a report is sent to telco and/or law enforcement for further

investigation -- and the person using the feature also has to "follow

up" with telco (usually by calling an automated reporting line)...