CodeRED Emergency Notification System

Tell a friend, tell a neighbor about Lexington's community notification system for keeping residents informed! 

Sign Up for CodeRED Alerts!

CodeREDCodeRED Purpose

To send critical communications to residents and businesses in Lexington. The system provides the ability to quickly deliver messages to targeted areas or the entire town.

The system will be activated for emergency public safety messages and important public notifications. Alerts may include, but are not limited to:

  • Extreme weather
  • Missing and endangered persons
  • Evacuations and lockdowns
  • Water emergencies
  • Chemical spills or release
  • Security alerts

Caller ID

A CodeRED Emergency message will have a caller ID of 866-419-5000. A CodeRED General message will have a caller ID 855-969-4636.

We suggest you program both numbers in your cell phone as a "new contact" and use "CodeRED Emergency" and "CodeRED General" as the contact name. Unfortunately, we are unable to program the numbers to come up as "Town of Lexington".

If you need to replay the emergency notification message again, simply dial this number and you will be able to hear the message again.


Your contact information is linked to your street address to ensure emergency notification calls are received by the proper individuals in a given situation.

To Stop Receiving CodeRED Messages, or Change What You Receive

To stop receiving some or all of the CodeRED messages, or change your email address or phone number, go the CodeRED webpage.

About CodeRED

CodeRED® uses telephone, text and email to quickly provide instructions to residents and businesses on how to prepare for, or otherwise deal with, an emergency situation.

This high-speed telephone and text messaging system can contact the entire Lexington database in less than 30 minutes. If you are not home, CodeRED® will leave a message on most answering devices. The system allows Lexington to contact all residents and businesses or limit the notification to a small geographic area.

The database used by CodeRED® is a combination of published white page listings, Enhanced 911 data and information provided by residents or business owners. To ensure that your phone number is registered (or to add text, email or additional phone numbers), please go to the CodeRED website and check your information.

The system is easy to use, but ask a friend or neighbor if you are having difficulty entering your emergency contact information. Internet access is available at the Cary Memorial Library (1874 Mass. Avenue) and volunteers at the Lexington Community Center (39 Marrett Road) are available to assist.