09/25/2025
Today’s 911 outage across Mississippi (and parts of Louisiana and Alabama) was pretty concerning, and understandably so. We’ve come to rely on the ease of access 911 gives us when we need help fast. Thankfully, things were restored fairly quickly. But a lot of folks are left wondering: how can one cut fiber optic line knock out 911 for an entire state?
We thought we’d use this gray cloud as a silver lining and explain how the 911 system works, and why outages like this are possible.
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A Quick History
Long ago, before 911, if you had an emergency you had to remember and dial a full 7-digit local number for police, fire, or ambulance. That number changed depending on where you were.
In the 1960s, a nationwide emergency system was proposed. In 1968 the very first 911 call was made in Haleyville, Alabama. Mississippi didn’t have widespread 911 coverage until the early 1990s.
Today, you can pick up a phone anywhere in the country and simply dial 911. But who actually answers?
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Who Picks Up
When you dial 911 in Mississippi, your call does not go to Washington D.C. or even Jackson. It usually rings right down the road at your local dispatch center (PSAP — Public Safety Answering Point).
That dispatcher might be handling police, fire, and ambulance calls all at once, sometimes with just one or two people on duty. Their job is to:
1. Confirm your location.
2. Identify the nature of the emergency.
3. Dispatch the right resources.
4. Stay on the line and guide you until help arrives (when needed).
So when a fiber line goes down, it is not “911” itself that breaks. The problem is the pathway between your phone carrier and your local dispatch center.
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Why Fiber Cuts Break 911
911 networks depend heavily on fiber optic cables to carry calls. In Mississippi, those lines run under highways, through rural areas, and between carriers.
When one line gets cut, calls are usually rerouted. But if multiple cuts happen at once (like we saw today), there may be no backup path. That is why people in MS, AL, and LA could not get through.
This is why local officials often share backup 10-digit numbers during outages. Those ring directly into the dispatch center without using the broken 911 network.
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The Hidden Highways of 911
Here is the part most people don’t know: your 911 call does not go straight from your house to the dispatcher. It first travels down special 911 trunk lines — bundles of hundreds or thousands of fiber strands that connect phone carriers (AT&T, C Spire, Verizon, rural co-ops, etc.) to the 911 service provider.
Think of these trunks like private highways built only for emergency calls. If one highway is damaged, traffic is rerouted. But if multiple highways go down, calls cannot reach the service provider at all.
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Why One Company Matters So Much
Almost every 911 call made in Mississippi (and most of the U.S.) is routed by a single service provider: Entrado (formerly West/Intrado).
Entrado runs the 911 call-routing backbone for most of the country from regional offices spread around the U.S. That is why when the Mississippi trunk lines feeding Entrado’s network were damaged, it did not just knock out one county. It disrupted entire states at once.
Dispatch centers were fully staffed and ready to answer calls. The problem was, the calls never made it to them.
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What YOU Can Do if 911 Goes Down
1. Save your local dispatch’s 10-digit number in your phone.
2. Follow your sheriff’s office, police, and emergency management on Facebook. That is where alternate numbers are posted fast.
3. Try both a cell and a landline. Sometimes only one system is down.
4. Stay calm and give your exact location first. If the call drops, responders still know where to go. The absolute most important piece of information you can give a dispatcher is the address of the emergency.
