There's a hidden language that's part of the GSM standard that can unlock hidden features on your smartphone. You can dial codes to check your bill, data usage, forward calls, hide your caller ID, and ...

Coders have a storied tradition of creating back doors in programs (or sometimes just fun little Easter eggs) that can only be accessed with a special "key." This has happened for almost as long as ...

Although you’ll get Reed’s phone number from President Myers, other secret codes can be found on the pieces of paper pasted around the old telephone. Here is the list of all known phone codes: Image ...

By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...

You may need to find out what is the international code of the country you are calling in case you want to make an international call. Here is the exhaustive list of the country code.

(Stacker) - These days it can seem as though “spam likely” calls pop up on your phone almost every day. Not only is it incredibly annoying, but it can get in the way of work and life if you’re ...