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On this page
  • Individual device
  • Block an operator
  • Remove an operator from the blocklist
  • Multiple devices in bulk
  • Block operators with the emnify REST API
Device management

Block operators on specific devices

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Last updated May 22, 2025

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Manage device tags

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emnify’s mobile core network manages the network selection from the network side in conjunction with the SIM settings. It has a global view of the available radio networks, their supported features, and live network status. This view helps temporarily or permanently steer SIMs away from ‘low signal quality’ networks and to the networks with the strongest signal.

The manual carrier switching can be done in two ways:

  • Select the preferred operator in the device’s menu.
  • Block other operators using the emnify Portal or emnify REST API.

Adding a network to the Blocked Operators list doesn’t prevent your devices from trying to connect to those networks. You still see the attempts in the Events tab, but emnify’s mobile core rejects any connection attempt. You should only use this feature to solve technical issues associated with specific operators.

Individual device

Block an operator

1

Log in to your emnify account.

2

Navigate to your Connected Devices.

3

Find the device where you wish to block an operator and click anywhere on the table row to open the device details.

4

Locate the Blocked Operators section and click Edit.

5

Select the operator you want to block. The following example blocks two operators, France - Orange and France - SFR.

Changes save automatically and the blocked operators are shown on the Device Details.

Remove an operator from the blocklist

1

Navigate to your Connected Devices.

2

Find the device with the blocked operator and click anywhere on the table row to open the device details.

3

Locate the Blocked Operators section and click Edit.

4

Click the X next to the blocked operator you wish to remove. The following example removes the France - Orange operator from the blocklist.

Changes save automatically and the updated blocked operators are shown on the Device Details.

Multiple devices in bulk

It’s also possible to select several devices on the Portal and update the blocked operators list for all of them simultaneously.

1

Navigate to your Connected Devices.

2

Search for the devices where you wish to block an operator and select the checkbox next to every relevant device.

3

A new menu at the top of the page provides bulk operations. Select More and then Block Networks.

4

Select the operators you want to block for these devices from the Networks blocklist dropdown menu. The following example blocks the operator France - Orange.

5

Review and click Save.

Block operators with the emnify REST API

You can also configure blocked operators using the following emnify REST API calls:

  • List Operator Blocklist for an Endpoint
  • Add an Operator to the Blocklist
  • Remove an Operator from the Blocklist