How to Call Back a No Caller ID Number

A No Caller ID call cannot be returned by tapping it in your recent calls list. The caller withheld the number before the call reached you, so there is nothing stored for your phone to dial back.

There are still two things worth trying: a call return code through your phone line, and a request to your carrier. Both have limits, and neither works the way the search results promise.

What does No Caller ID mean?

It means the caller instructed the network not to pass their number to you. That is a deliberate choice, made either per call with a dialling prefix or permanently as a setting on their line.

Your phone is not hiding the number from you and there is no setting on it that reveals one. The number was never sent.

Is No Caller ID the same as Unknown or Private?

No, and the difference tells you what you are dealing with.

• No Caller ID or Private means the number exists and was withheld on purpose.
• Unknown or Unavailable usually means the number never made it through the network, often on a call routed from overseas or through an older exchange.
• A number shown with no name attached is a normal call from a number that simply is not in any directory, and that one you can return.

Only the first is a withheld number. The second is a technical gap and there is nothing to retrieve.

What should you have ready before trying?

• The date and the time of the call, as close to the minute as you can manage. Everything a carrier can look up is looked up by time.
• Which of your lines received it, if you have more than one.
• Whether it rang through, went to voicemail, or was answered.
• Anything the caller said or left, including a voicemail you have not deleted.

Do not delete the voicemail. It is often the only piece of the call that survives.

How do I call back a no caller id call, step by step?

1. Do it immediately if you are going to do it. Call return works on the last incoming call, and every call that arrives afterwards replaces it.
2. Dial the call return code for your line. In the United States that is usually star six nine on a landline, and support for it on mobile lines varies by carrier.
3. Listen to what the recording says. Some lines announce the number before connecting, some connect without announcing it, and some state that the call cannot be returned.
4. If it connects, the person answering may not be the person who called you, so say why you are calling before assuming anything.
5. If it fails, stop. Repeating the code will not change the answer.

Call return normally does not display the withheld number to you even when it works. It places the call on your behalf, which is the point of it.

Why does the callback fail or reach the wrong person?

The usual reasons, in order of how often they happen:

• Another call came in after the one you wanted, so the code returned that one instead.
• The call came from a service that shows nothing to return, which covers most automated and internet-based calls.
• The number displayed was faked in the first place, so the callback reaches whoever really owns it. This is why strangers sometimes get angry callbacks for calls they never made.
• Your line does not carry the call return feature, which is common on mobile plans.

What can my carrier tell me that my phone cannot?

Carriers hold call records that include calls your handset displays as withheld. What they will do with them depends on the situation and on the law they operate under.

Ask them directly: whether the line supports call return, whether anonymous call rejection can be switched on so withheld numbers are refused before they ring, and what their process is for repeated unwanted calls. Some carriers run a formal call trace that you start by dialling a code straight after the call, and the result goes to the carrier or to law enforcement rather than to you.

Have your account details ready before you contact them: the name on the account, the billing address on file, and the account PIN if one is set.

Should I call back at all?

Often not. Answering or returning an unwanted automated call confirms that a real person is on the line, and confirmed numbers get called more, not less.

Return the call when you are genuinely expecting one that could be withheld, such as a call from a clinic, a school, or an office that hides its outbound numbers. Leave it alone when it fits the pattern of nuisance calls: repeated short rings, calls at odd hours, or a silent line when you answer.

What do I do if the calls keep coming?

1. Write down the date and time of each one. A list of times is what any complaint or trace request is built from.
2. Ask your carrier to enable rejection of withheld numbers on the line, if the feature exists on your plan.
3. Use your phone's own setting to silence unknown callers, so they go to voicemail without ringing. Legitimate callers usually leave a message.
4. File a complaint with the national regulator that handles unwanted calls in your country if the calls continue.
5. Contact local police if the calls are threatening, and tell them you have a log of times, because that is what makes a trace request possible.

Do not give any information to a withheld caller who asks for it, including confirming your name. A company that already deals with you does not need to establish who you are by asking you first.