Police 11 Codes: Guide & Full List of Police Radio Eleven Code

Police eleven codes are an important tool that officers use to share information quickly over police radios. Unlike typical conversation, these police codes are short, specific phrases that allow officers to get straight to the point, especially in urgent situations. Eleven codes work alongside the more familiar ten codes, creating an expanded set of shorthand that keeps communication fast and effective when every second matters.

Unlike ten codes, which are more universal, eleven codes often vary by region and can be highly specialized. They cover everything from officer safety to specific types of incidents, ensuring that crucial information is relayed without delay.

In this article, we break down what these eleven codes are, how they’re used, full list of 11 codes and why they play such an important role in modern policing. Whether you’re a scanner hobbyist or someone with a deeper interest in law enforcement, understanding these codes provides valuable insights into police work.

For the full index, start with the Police Codes Guide.

For quick examples, compare 11-99 with the response pages for Code 3 and Code 4.

What Are Police Eleven Codes?

Police eleven codes are shorthand signals used primarily in some regions of the United States, notably in California and a few other states, as a complement to the standard ten codes. These eleven codes provide a streamlined way for officers to communicate without spelling out every detail, which is especially important during emergencies when every second counts. Eleven codes are generally less commonly used than ten codes, but they still play a vital role in keeping communications concise and clear.

These codes are designed to cover a wide range of situations—from mundane activities like signaling a traffic stop to more critical scenarios like indicating a need for emergency assistance. While ten codes tend to be more universally recognized, eleven codes are typically more region-specific, meaning they might be familiar to law enforcement in certain areas but not as standardized nationwide.

This specialization allows eleven codes to address the unique communication needs of different jurisdictions, making them a valuable part of regional law enforcement operations.

Police 11 Codes (Full List)

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How Many Eleven Codes Are There?

The number of police eleven codes can vary by department or jurisdiction. In places where they are in regular use, you may find a list containing around twenty to thirty distinct eleven codes.

Unlike ten codes, which have seen more widespread adoption across the country, eleven codes are often tailored to fit the specific operational needs of a particular police department. This means that while one department might use eleven codes to describe particular types of incidents, another department may have different uses for the same set of codes, or they might not use eleven codes at all.

This lack of standardization can be both an asset and a challenge. On one hand, the regional specificity of eleven codes allows them to be highly effective for the unique needs of each police department. On the other hand, this variability can create communication barriers when officers from different departments need to work together.

In situations that involve multiple jurisdictions, such as large-scale emergencies, the differences in eleven code usage could potentially lead to misunderstandings if everyone isn’t on the same page. For this reason, some departments are shifting towards plain language communication for certain operations, especially those involving multi-agency collaboration.

What Do Eleven Codes Cover?

Police eleven codes are designed to cover a broad range of situations that officers face while on duty. Their purpose, like that of ten codes, is to speed up communication, provide clarity, and ensure that important information is relayed quickly and accurately. Eleven codes tend to be used for more specific situations than ten codes and can include calls that relate to officer safety, vehicle stops, or certain types of criminal activity.

Here are some common categories covered by police eleven codes:

• Traffic Incidents: Eleven codes often relate to vehicle stops, traffic violations, and incidents involving cars on the roadway. They provide a way for officers to indicate that they are pulling over a driver or dealing with a specific type of traffic issue.
• Officer Status: Some eleven codes are used to communicate the status or needs of an officer. This can include situations where an officer requires backup or needs urgent assistance.
• Criminal Incidents: These codes can also cover specific types of criminal activities or incidents that require law enforcement intervention. For instance, a particular eleven code might indicate that there is a hazardous situation or that an officer needs immediate backup due to a potentially dangerous suspect.
• Administrative Updates: Eleven codes are also used for non-emergency communication, such as routine status updates. This allows dispatchers and other officers to stay informed about the progress of a particular activity or task without the need for lengthy explanations.

Because eleven codes can vary from one department to another, officers must be trained extensively in the codes used within their jurisdiction to avoid confusion. Training typically involves learning the entire set of eleven codes used by their department, as well as staying updated on any changes or additions that might occur over time.

Differences Between Eleven Codes and Ten Codes

Police eleven codes and ten codes both serve similar purposes: they provide a standardized method of communication that saves time and minimizes misunderstandings during police operations. However, there are key differences between the two sets of codes that are important to understand.

• Usage and Standardization: Ten codes are more widely recognized and are generally used by many law enforcement agencies across the country. They have become almost universal shorthand for key situations like acknowledgment (10-4) or location inquiry (10-20). Eleven codes, on the other hand, are more specific to certain regions and are not as standardized. This means that eleven codes might be completely different in one state compared to another, and the meanings can vary significantly based on the department.
• Regional Differences: Eleven codes are mostly used in states like California and a few others, making them far more regionally specific. This regional nature makes them ideal for dealing with local law enforcement issues but can lead to confusion when communicating with officers from outside that jurisdiction.
• Communication Context: Ten codes tend to be more general and applicable to a wide range of scenarios, while eleven codes are often more specific and geared towards particular types of incidents. This difference allows officers to communicate with a level of detail that might not be possible with the broader ten codes, but it also requires a deeper understanding of the particular set of eleven codes used by a given department.

The Role of Eleven Codes in Police Scanners

For scanner enthusiasts and those interested in law enforcement communications, police eleven codes provide an extra layer of insight into what officers are dealing with in the field. Listening to a police scanner without understanding the eleven codes would make it difficult to grasp the specifics of many situations.

Knowing these codes can give scanner users a better understanding of what is happening in their community, whether it’s a routine traffic stop or a more serious incident requiring multiple units to respond.

While ten codes might be more common on scanners due to their widespread usage, eleven codes offer a more detailed look into the specific actions and needs of officers, especially in areas where these codes are regularly employed.

Understanding eleven codes means that listeners can better follow along with the unfolding events, gaining a clearer picture of the challenges officers face daily. At Police Code For, our mission is to make these codes accessible, providing valuable information for anyone wanting to learn more about how law enforcement operates.

Why Some Departments Are Moving Away from Eleven Codes

In recent years, there has been a shift in some departments away from using eleven codes and even ten codes in favor of plain language. This change has been driven largely by the need for clearer communication during large-scale emergencies, where multiple agencies from different regions must work together.

During such situations, the lack of standardization in eleven codes can lead to misunderstandings, and plain language is often seen as the simplest way to ensure that everyone is on the same page.

However, despite this shift, many departments still prefer eleven codes for their brevity and the level of confidentiality they provide. Using codes allows officers to communicate information quickly without making every detail public, which can be particularly useful in sensitive situations.

While plain language is ideal for inter-agency operations, eleven codes remain popular for day-to-day use within individual departments where officers and dispatchers are all trained to understand them.

Conclusion

Police eleven codes are a vital part of law enforcement communication, providing a shorthand that officers can use to convey important information quickly and clearly. Though they may not be as widely recognized as ten codes, eleven codes play an important role in specific regions and provide an extra level of detail that helps officers respond effectively to the challenges they face.

Whether you’re a law enforcement professional, a scanner hobbyist, or someone with an interest in public safety, understanding these codes opens a window into the operations of law enforcement and the various situations they handle every day.

We aim to make police eleven codes understandable for everyone. Our comprehensive resources break down these codes, explain their meanings, and provide context for their use in real-world situations. Whether you want to know what an officer means by a particular eleven code or you’re just curious about how these codes differ from the ten codes, we’re here to provide the answers.

By understanding police eleven codes, you’ll gain valuable insight into how officers keep our communities safe, one call at a time.

More officer help questions

If you are looking for the urgent-assistance meaning, see Police Code for Officer Needs Help and compare it with the Police Codes Guide.