Emergency Codes You Hear Over Loudspeakers And What They Mean


Have you ever heard the voice of an official in law enforcement, on board a cruise, or in an airport come over the loudspeaker and ramble some random words and numbers? Have you ever wondered what those seemingly random combinations of letters, numbers, and words mean?

Each code means something completely different and, for the most part, people have absolutely no clue what they mean. The veil has been lifted and we will present you with 10 emergency codes you were probably never meant to know. The next time you hear them in public you will be able to share with your fellow citizens some information about what is happening.

10. Walmart Codes

Walmart was one of the first retailers to develop a system of codes in their stores. It’s important to distinguish the difference between a bomb threat “Code Blue” and a wet spill “Code 10” to ensure you’re in panic mode at the right time. If you meet people on Tinder or Match.com you should probably head over to #9!

9. Run If You See “437737” On A Dating Profile

Are you looking for your soulmate online? You’ll want to write this one down. If you see “437737” on a potential partner’s profile, they are trying to let you know they have herpes. Kids, we used to have telephones that contained letters on the keypad associated with each number. For your information, 4-3-7-7-3-7 spells out “herpes” on an old-fashioned landline.

8. Yep, You’re An “ID 10 T”

The code “ID 10 T” is something you don’t want on any service record associated with computer repairs. It doesn’t mean your computer is unfixable. It does mean that you did something to mess up your computer and won’t admit fault. It means user error, ID 10 T! Get it?

7. Code Bravo!

Most people may have heard authorities yell “Code Bravo!” at an airport. This usually signifies there is a threat in the airport and “Bravo” is meant to scare non-threatening passengers into submission so they can locate the actual threat. Head over to #6 for a code you need to remember.


This code was created as part of a campaign against sexual violence. If someone is on a date and begins to feel threatened, they will approach the bar or restaurant staff and ask to “speak to Angela.” If the staff has been informed, they will discreetly call you a cab and help you escape the uncomfortable situation.

5. The Infamous Ten Codes

The elusive Ten Codes are an essential tool for most United States law enforcement agencies. They were first implemented in 1937 and underwent a drastic expansion by the 1970s. If dispatch signals a “10-double zero” it means an officer is down and all available patrols must respond.

In addition:

10 – 31 = Man with Gun

10 – 35 = Major Crime Alert

10 – 80 = Chase in Progress.

4. London Bridge Is (Falling) Down

Many governments have codes when a head of state has passed away or is under a direct threat. Many people have seen the movie Olympus Has Fallen to understand this concept. “London Bridge Is Down” is used strictly in the United Kingdom and means the Queen as died. God save the Queen!

3. 7500, 7600, and 7700
Hopefully, you’ll never hear one of these codes mentioned over the intercom to ruin your in-flight movie. A “7500” is the most serious and means your plane has been hijacked. A “7600” tells the flight crew that communications have been lost. And “7700” is the code for a general emergency and will probably be the last one you hear.
2. Doctor Brown!

You are likely to hear “Doctor Brown” if you spend a lot of time in hospitals. The term is to let security personnel know there is a direct threat to hospital staff even though it sounds like someone is calling an actual Dr. Brown. Not to be confused with “Code Brown” which means to prepare for mass casualties. We’ll go over some other color codes for hospitals in #1.

1. Additional Hospital Color Codes

Hospitals use a variety of other colors to let staff know of important happenings within the building. A “Code Pink” either means a patient is under the influence of illegal substances or a baby is about to be born without a gynecologist nearby and a “Code Yellow” means a patient is missing or a natural disaster is imminent.