Official City of London service

Get emergency alerts for your address.

Already registered? Sign in to update your details.

Ways to receive alerts

Text message
A short message to your mobile phone that explains what is happening and what to do.
Phone call
A recorded message to your landline or mobile phone that reads the alert aloud.
Email
The full alert, sent to your email address, so you have a written copy.

You only need to register once. You can update your details at any time.

Create your account

Register with your name and a way to contact you.
Add your address

Alerts are sent to the areas an emergency affects. We use your address to include you.
Choose how to receive alerts

Select one or more, and the order in which we contact you.

Call or email us and we'll help.

Alert London sends alerts to residents. It can't be used to report an emergency.

Learn more about Alert London and how it works.