Dialing *69 on a landline or mobile phone in North America activates the "Last Call Return" feature, automatically calling back the last number that called you, even if they blocked their Caller ID, allowing you to identify and potentially reach them. It's a handy tool for missed calls but has limitations, working best on landlines and potentially requiring a carrier subscription or per-use fee, with some modern smartphone services now using apps or built-in Caller ID instead.
The general public tends to refer to the service by the telephone feature code, the telephone number it has in their country; for example, in North America, this is *69, while in the UK, it is called 1471. The New York Times described Call Return in 1992 as a new service.
*67 hides your number from Caller ID by displaying "Private" or "Unknown," while *69 redials the last number that called you. -*67 blocks your number to make private calls. *69 tells you who previously called you and what their number was.
To block your number from being displayed temporarily for a specific call: Enter *67. Enter the number you wish to call (including area code).
Dialing *67 before a phone number blocks your caller ID for that specific call, making your number appear as "Private," "Blocked," or "No Caller ID" on the recipient's phone, a feature that works on most mobile and landline services but not for emergency or toll-free numbers. It's a per-call privacy tool, useful for business from a personal phone, but doesn't hide your number permanently unless set in your phone's carrier/settings.
Dialing *77 activates Anonymous Call Rejection, blocking incoming calls from private or blocked numbers on landlines and some mobile services, making anonymous callers hear a message that you don't accept their calls. To turn it off, dial *87, and remember that this feature only blocks intentionally hidden numbers, not calls marked as "Unavailable" or "Out of Area," and can sometimes route to emergency services in certain areas or for specific carriers, so check with your provider.
This Vertical Service Code, *82, enables calling line identification regardless of subscriber preference, dialed to unblock withheld numbers (private callers) in the U.S. on a per-call basis.
*69, a code widely available in North America, allows you to redial the last incoming call that you missed. The service is provided by most telephone service providers and operates by storing the caller's phone number, allowing you to quickly connect back to them.
Unlike No Caller ID, where the caller actively hides their number, Unknown Caller means the caller's information is not available or not transmitted properly and your phone service provider is unable to identify the caller.
Figure out an unknown number with *69
Here's how to trace an unknown number using the *69 service: Dial *69 on a mobile or landline. On some devices, you may then have to press the Call button. You will be told the number of the last person to call you.
What is BT 1471? BT 1471 tells you the last number that called - unless the caller withheld their number by dialling '141' before dialling your number, or the call came from a switchboard extension number. 1471 Call Return also lets you return the call straight away, by pressing '3'.
You can tell if someone blocked your number if your calls go straight to voicemail (after one ring), texts show as undelivered (like on WhatsApp), or you're blocked on social media; however, the surest way is to call from another phone: if your calls don't go through from your number but do from another, you're likely blocked, though consistent patterns over time are key to differentiate from normal DND/airplane mode.
You can trace a no caller ID by dialing *57, which automatically tracks the last call you received and alerts your phone service provider (and local law enforcement if necessary) to potential criminal activity along with a recording of the call.
Calls to 911, North America's emergency number, may be transferred to the 999 call system if the call is made within the United Kingdom from a mobile phone.
Withholding your telephone number means that it won't be available to the person you're calling. You can ask us to permanently withhold your number, or you can choose to withhold it yourself on a call-by-call basis. To withhold your number on individual calls, just dial 141 before the telephone number you want to call.
If you have been blocked by someone on Android, then it is likely that you would want to text them. Unfortunately, since you have been blocked, there is no way to get your texts delivered.
Can you unblock yourself from someone else's phone? If you have confirmation that someone has blocked your contact on their phone, there's no way to unblock yourself remotely using any of your devices.
The simplest and most common way to call someone who's blocked you is by hiding your caller ID. When you do this, your call appears as “Private,” “Unknown,” or “No Caller ID” on the recipient's screen. How to do it: In the U.S. and Canada, dial *67 before the number you're calling (for example, *67 555-123-4567).
The only way to see a call history from a blocked number is to unblock the number. They will be added to your regular call list, and you will be able to see any missed calls you receive from the number.
The easiest way to hide your number when calling on your Android phone is to enter *67 on your keypad before typing in the area code and phone number. If you do this, your number will show up on the phone you're calling as “Private” or “Blocked”.
Missed Call Dialing (*69) can return some long distance calls. If you use this service to return a long distance call, you'll be charged a long distance rate and the telephone number will appear on your bill.
Dialing *77 activates Anonymous Call Rejection, blocking incoming calls from private or blocked numbers on landlines and some mobile services, making anonymous callers hear a message that you don't accept their calls. To turn it off, dial *87, and remember that this feature only blocks intentionally hidden numbers, not calls marked as "Unavailable" or "Out of Area," and can sometimes route to emergency services in certain areas or for specific carriers, so check with your provider.
Method 1: Using caller ID restriction. Method 2: contacting through a different phone number. Method 3: Sending text messages or emails.
Access the personal IMEI number by keying *#06# the 15 digit serial number will appear on the screen. Make a note of the number and register the details with your operator, in the event that your phone is stolen you report it to you operator who should then be able to bar the SIM card.