A tag is a label you stick on a SIM card. SIMs can have any number of tags, and each tag can be applied to as many SIMs as you want. Tags don't change anything about how the SIM works. They're purely organisational, and they make every other dashboard feature (filtering, bulk actions, reporting) work better at scale.
This article covers how to create tags, apply them, filter by them, and delete them when they're no longer useful.
There's no fixed taxonomy. Pick whatever cuts your fleet usefully. Common patterns:
Customer: acme-corp, globex, initech
Project or product: tracker-v2, meter-rollout-2026
Location or region: germany, manchester-warehouse, route-66
Deployment phase: staging, production, field-test
Hardware: teltonika-rut240, quectel-bg96
Internal owner: ops-team-1, eng-fleet
From the SIM detail page
Open the SIM in the dashboard
Find the Tags box (usually top-right)
Click the three-dot menu in the Tags box
Pick an existing tag from the list, or Create new to make one on the fly
Click Apply
During SIM registration
When you register a SIM (individually or in a batch), there's an optional tags step. Add the relevant tags then. It saves a round-trip later.

In bulk from the SIM list
Open SIM cards
Filter or search to narrow down, then select the SIMs you want to tag
In the action bar, click Assign SIMs
Pick existing tags or create new ones
Apply
Bulk tagging is the fastest way to retro-fit a tagging scheme onto an existing fleet.
Once your SIMs are tagged, you can use tags to scope what you see:
Open the SIM overview page
In the Filter panel, find the tags section
Select one or more tags. The list updates to show only SIMs that match
Selecting two tags shows only SIMs that have both. To find SIMs with either tag, filter for each separately or use the API.
To export the filtered list:
Run your filter
Click Export in the action bar
The export contains every SIM matching the filter, with ICCID, status, plan, usage, and tags
Filtering by tag is the prelude to almost every bulk action. Common workflows:
Filter by tag → select all → Disable (for example, end-of-contract for a customer)
Filter by tag → select all → Change plan (for example, all eu-trucks move from USA to Europe coverage)
Filter by tag → select all → Send SMS (for example, command all firmware-v1.4 devices to reboot)
See SIM state, Coverage, and SMS for the individual bulk actions.
From the SIM detail page
Remove the tag from a single SIM without affecting other SIMs that have the same tag:
Open the SIM
In the Tags box, click the X next to the tag
From the bulk Assign menu
Permanently delete a tag from your account:
Select one or more SIMs in the SIM list
Click Assign SIMs in the action bar. Your selection only determines where the menu opens from. Deleting a tag here removes it from every SIM in the account
Hover over the tag you want to delete and click the bin icon next to it
Confirm
No practical limit. SIMs in large fleets routinely carry 5 to 10 tags.
Not directly. Workaround: create the new tag, apply it to everything that had the old one (filter + bulk assign), then delete the old tag.
Yes. Tag operations are available through the API. Useful for syncing tags with an external system of record (CRM, asset register, and so on).
Tags are private to your Simbase account. They don't appear on invoices or in any externally-visible output.


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