What does *66 do to your phone?

Dialing *66 on a phone activates Busy Redial (or Automatic Callback), a service that continuously redials a busy number for up to 30 minutes, alerting you with a special ring when the line becomes free. It is commonly used on landlines and some business VoIP services to avoid manual redialing, though it is less common on personal mobile phones.
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What does *#62 do on a phone?

To check, dial *#62# to confirm if your calls are being forwarded to any particular number.
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Can anyone see my number if I use *67?

*67 is a calling feature that allows you to hide your phone number when making calls. When you dial *67 before a phone number, your caller ID is blocked, and the person you are calling will see "Blocked," "Private," or "Unknown" on their caller ID instead of your actual phone number.
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What does *82 do to your phone?

Dialing *82 before a phone number temporarily unblocks your caller ID on a per-call basis, allowing your name and number to be displayed to the recipient. This is used to bypass "private" or "blocked" caller settings, ensuring calls go through to recipients who use anonymous call rejection.
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What does *#002*# do on a phone?

It is the code ##002#, a feature built into most cell phones, whether Android or iPhone, which allows you to remove all active call forwarding on the line, just by dialing it from the call app.
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What is a 66 block

What is *# 0011 used for?

The data includes signal strength, network type, force network mode (forcing a phone to use only 4G or only 5G), and more. This code is usually disabled on Samsung phones, but you can try *#0011# for "Service Mode."
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What is the code *#9900?

The *#9900# code is a hidden Android system diagnostic tool, primarily used on Samsung devices to open the SysDump menu. It allows users to free up system memory by selecting "Delete dumpstate/logcat" to remove log files, and it can be used to monitor battery health via the "charge counter".
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What is *77 on cell phones?

Dialing *77 on a phone typically activates "Anonymous Call Rejection" or "Block No Caller ID" services to stop hidden or private numbers from ringing. While common on landlines and some specific carrier services (like AT&T), police warn against using it on cell phones because it may connect to emergency 911 services in some areas.
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What does *97 do on a phone?

*97 is a common "star code" (feature access code) used in VoIP and digital business phone systems to access your voicemail box directly. Dialing *97 typically bypasses the main greeting and prompts for your voicemail password immediately, acting as a shortcut to check messages. It may also be used for call pickup.
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What is the *31 *# code for?

`*31#` and `#31#` are codes related to caller ID and call blocking. Here's what they typically do: - `#31#` : This code is used to *hide your caller ID* for a specific call. When you dial `#31#` followed by the phone number, the recipient won't see your number.
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Can you tell if someone is tracking your phone number?

Strange texts or calls

Unexpected texts or calls can indicate that someone is tracking your phone. Spyware and malware sometimes use SMS messages to send and receive data, which means you might notice strange outgoing messages that you didn't send or incoming texts with random characters or symbols.
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What is *67 vs * 69?

*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.
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Can you find out who called you on *67?

Yes, it is possible to find out who used *67 to hide their number, although it often requires assistance from your phone carrier or law enforcement. While *67 blocks the caller ID on your screen, the carrier still logs the actual number.
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What is *# 0 *# test on my phone?

📱 What It Does: When you dial *#0*# on the phone's dialer it brings up a hardware test menu that lets you test various phone components. 🔧 Common Tests in the Menu Include: Display Test – Red, Green, Blue, Black, White, etc. Touch Screen Test – Check if all parts of the screen respond.
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What happens if you dial *#21 on your phone?

Dialing *#21# on your phone (GSM/iPhone/Android) acts as an "interrogation code" to check the status of your call forwarding settings. It tells you if your voice, data, SMS, or fax calls are being diverted to another number, showing "Enabled" or "Disabled" for each service.
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What does *#30 do to your phone?

Calling Line Presentation: Type *#30# to view whether your iPhone will display the caller's phone number when an incoming call arrives on your phone. You can also tell whether this is enabled by whether a phone number appears on your iPhone when someone calls you.
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What does *78 do on your phone?

*78 Do Not Disturb Activation Activates the Do Not Disturb feature. When Do Not Disturb is enabled, your phone does not ring and all calls go directly to voice mail.
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What are the * codes for AT&T?

AT&T provides several short codes ("star codes") for wireless and landline services to manage features like call forwarding, check usage, or view account information. Key wireless codes include *646# for minutes, *225# for balance, and *639# for upgrades. Call forwarding is enabled by pressing *72 (and deactivated with *73).
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What does *92 do on iPhone?

*92 Activates Call Forwarding No Answer. All calls to this phone will be forwarded to the designated 10 digit number when the call is not answered after 3 rings (default setting).
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What is *85 on a phone?

*79 Do Not Disturb - disable Disables DND and also disables selective call forwarding *85 Calling Name and Number Delivery – disable Disables Calling Number/Name for incoming calls. *86 Automatic Callback - cancel all attempts Deactivates Automatic Callback attempt.
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What is *57 on a cell phone?

Dialing *57 on a cell phone activates Call Trace, a service used to immediately trace the last incoming call for harassment or threats. It records the caller's information for law enforcement rather than revealing it to you. It is a pay-per-use feature, and the information is only released to police.
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What happens when you dial *35*0000?

*35*0000# : Activate incoming call barring. *331*0000# : Bar all international calls.
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What are 4636 Android secret codes?

The Android secret code *#*#4636#*#* (or *#*#INFO#*#*) opens a hidden "Testing" menu to access device, battery, Wi-Fi, and network stats. It enables troubleshooting of cellular connectivity (signal strength, IMS status) and displays detailed usage statistics for apps. It works primarily on stock Android, Pixel, and Motorola devices.
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What does *#899 do?

Dial *#899# and perform a check of your device on specific parameters. My device wasn't able to do 100% good job... I'm attaching screenshot of the following functionsin which my device didn't worked well. do check yours.
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What is *#2663 used for?

3️⃣ Dial *#2663# to refresh your Wi-Fi and boost internet speed. Click on TSP FW Update for touch screen firmware updates. 4️⃣ Dial *#12580*369# to check all hardware and software versions of your device. Stay tech-savvy and make the most of your Android!
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