Columbia, SC (WLTX) -- Starting today, May 15th, AT&T, Sprint, T-Mobile, and Verizon launch a Text-to-911 emergency messaging service.

It allows users to send a text to 911 to get help and chat with an operator.

This of course is helpful when you're in a situation where you're afraid to speak. However, it may not work everywhere.

It's up to local states and counties to implement a way to receive and dispatch your text messages.

At this time, text messaging 911 within South Carolina is available only for some Greenville County agencies, with the platform having been launched in October of last year.

You can find a list of all areas where text-to-911 service is available online here (http://on.wltx.com/1m7Cyfr) - or read below (on desktop computers)

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