Additional numbers In 1983, a hyphen and four-digit code were added to some of the ZIP codes. The ZIP+4 code was implemented when it became difficult to sort mail based only on traditional ZIP ...

Those numbers and letters in your DeWalt tool's model number do have meaning, though deciphering them might take the skill of ...

Often, travellers will only glance at their boarding pass to see which seat they're in - but it's worth knowing the meaning behind the other codes these passes contain ...

FLIGHT secrets have revealed there is a secret code behind flight names and numbers. Here’s how to crack your code and decipher its meaning.

IRS codes refer to steps the agency has taken on taxpayer accounts. 826, 846 and 570 are related to overpayments and credit holds.

Or soaring interest rates mean you earned more on your savings and might have to now pay tax on the interest. The code is made up of several numbers followed by letters.

Want the 411 on the bartending world’s secret codes? Loose-lipped mixologists are pouring out that confidential information.

The Louisville region is getting a new area code to go along with Kentucky's existing five area codes.

The new code will overlay the entire geographic area of the current 202 area code, meaning all new phone numbers that go into service after the 202 numbers are depleted will have the new area code.