Elastic Load Balancing
Network Load Balancers

Tags for Your Network Load Balancer

Tags help you to categorize your load balancers in different ways, for example, by purpose, owner, or environment.

You can add multiple tags to each load balancer. Tag keys must be unique for each load balancer. If you add a tag with a key that is already associated with the load balancer, it updates the value of that tag.

When you are finished with a tag, you can remove it from your load balancer.


  • Maximum number of tags per resource—50

  • Maximum key length—127 Unicode characters

  • Maximum value length—255 Unicode characters

  • Tag keys and values are case-sensitive. Allowed characters are letters, spaces, and numbers representable in UTF-8, plus the following special characters: + - = . _ : / @. Do not use leading or trailing spaces.

  • Do not use the aws: prefix in your tag names or values because it is reserved for AWS use. You can't edit or delete tag names or values with this prefix. Tags with this prefix do not count against your tags per resource limit.

To update the tags for a load balancer using the console

  1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

  2. In the navigation pane, under LOAD BALANCING, choose Load Balancers.

  3. Select the load balancer.

  4. Choose Tags, Add/Edit Tags, and then do one or more of the following:

    1. To update a tag, edit the values of Key and Value.

    2. To add a new tag, choose Create Tag. For Key and Value, type values.

    3. To delete a tag, choose the delete icon (X) next to the tag.

  5. When you have finished updating tags, choose Save.

To update the tags for a load balancer using the AWS CLI

Use the add-tags and remove-tags commands.