How to Private Call Someone: the Complete Guide for Every Device
By James H. Sterling
Q1: Does dialing *67 hide my phone number when sending SMS or MMS text messages?
A1: No. Vertical service codes like *67 only function on voice channels within the public switched telephone network. If you prepend a text message with *67, the message will fail to deliver or your carrier will send the text alongside your visible number. To send private text messages, you must use a secondary VoIP application like Google Voice or Hushed.
Q2: Can a recipient use a third-party app to unmask my private call?
A2: Commercial consumer services like TrapCall can unmask restricted calls on mobile devices. They accomplish this by rejecting the incoming private call and instantly redirecting the signaling data through an enterprise toll-free routing proxy, which forces the network to expose the underlying Automatic Number Identification (ANI) before ringing the phone back.
Q3: Is it illegal to hide my caller ID when calling someone?
A3: Hiding your caller ID using standard prefixes (*67) or smartphone menu settings is entirely legal under federal regulations. Illegality only occurs under the Truth in Caller ID Act if you transmit deliberately altered or misleading display data with the intent to defraud, cause harm, or wrongfully obtain anything of value.
Q4: Why does my phone say "No Caller ID" instead of showing a spoofed number?
A4: "No Caller ID" indicates that the calling party invoked a standard network privacy flag to suppress their identity. Spoofed calls, by contrast, deliberately insert a fake sequence of digits into the presentation layer so the incoming call appears to originate from a local neighbor, bank, or government agency.
James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.
