If your phone number starts with 334, starting this month you'll need to add the area code to all local calls.

Sometime later this year, you may get a call from area code 531 and, when you do, don’t hang up — it’ll be a local call.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ST. LOUIS, Mo. – The deadline is Sunday to ...