Get out the crying towels. Chicago is finally catching up to the burbs, which is anathema to city residents who derive some status from their residential area code or even their ZIP codes. Beginning ...

So, like, the 312 area code was created back in 1947. It was part of the original North American area codes. Not really sure why this matters, but it’s kind of cool, I guess. Like, back in the day, ...

Get ready to dial a new area code in Chicago this fall: 872. It’s been almost 13 years since 773 went into service for Chicago’s northern, western and southern neighborhoods, and in July that area ...

Today marks the 50th anniversary of the Zone Improvement Plan, the network of ZIP codes we use for everything from mail delivery to credit card security. The U.S. Postal Service began using the ...