The ussd codes allows you to get admission to hidden functions you failed to know approximately right out of your telephone's dialer. however there may be a few trickiness you may need to realize. Hope you know what ussd codes means? If not go an use your Google app.

1, show your IMEI: *#06#
Note that is code does not work with some Verizon on an iPhone, however I could make it work after switching to a T-cell SIM. It also worked on my Android AT&T device as well. To get entry to it, type in the above code, and then press send button to set off your IMEI wide variety (or your global cellular Station gadget identity number, but you already knew that).
The IMEI is particular to your tool. amongst other matters, the number can assist "blacklist" stolen gadgets or assist with customer service. ,

2,How to test Your call Forwarding: *#67#
This code allows you to check which range your cellphone is presently forwarding calls to whilst you're busy or reject a call.
with the aid of default, this might be your provider's voicemail carrier, however you may change it to ahead to a exclusive number (a domestic quantity, office wide variety, or 0.33-birthday party answering provider for instance). On an iPhone, you may change this wide variety by using going to Settings > smartphone > name Forwarding. On Android (varies from system to gadget), faucet the phone app > hamburger icon > Settings > call > extra Settings > call forwarding,

3, how to Activate Call Waiting: *43#
Though this call waiting is not That important. This code will activate call waiting; you can deactivate it by entering #43# .

4,You can view your general test mode with *#0*#
I may want to simplest get this to paintings on Android. however this prompts a library of different cellphone operations, which could be operated with a single push (e.g. Sleep, the front Cam, Vibration).
5,Check Your Billing Cycle: *3282#
This code is not for every phone, I could only get this to work on Android. It prompted an SMS message with my billing info.

6, They ar still many codes available. This one's I stated here are t ones I hav use and a working well.
You can drop the code in the comment box

source : http://www.aboutspec.com/2017/08/6-secrets-codes-that-can-unlock-some.html?m=1

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seun

nice one but does this code works with our service providers

Thanks for sharing this information.

uchia1982:
Thanks for sharing this information.

welcome dear

Vicboi1:
nice one but does this code works with our service providers

yes. though not all