The NoveSIM APN is data.esim. Most phones configure it automatically, so change the APN only when mobile data does not work and the field is empty or the supplied instructions require manual entry.
Quick answer: First confirm that the Czech Republic eSIM is enabled, selected for cellular data and allowed to roam when required. If manual APN entry is still needed, enter data.esim exactly, leave unspecified fields unchanged, save and refresh the connection once.
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Check it when the profile is installed, the phone can register on a network, but webpages do not load with WiFi off. An APN cannot repair an expired plan, exhausted allowance, disabled eSIM or unsupported network.
If data already works, do not edit the APN. Do not copy O2, T-Mobile or Vodafone settings into a travel eSIM; those values belong to different services.
NoveSIM APN values
| Field | Value |
|---|---|
| APN | data.esim |
| Username | Leave blank unless instructed |
| Password | Leave blank unless instructed |
| Proxy, port and authentication | Do not change unless supplied |
Take a screenshot before editing. Change only the necessary field so the previous configuration remains recoverable.
APN on iPhone
- Open Settings and Cellular or Mobile Data.
- Select the Czech Republic eSIM.
- Open Cellular Data Network when the menu is available.
- Enter
data.esimin the cellular-data APN field. - Return to save, then toggle Airplane Mode once.
The editable menu may be hidden when the profile manages settings automatically. A missing APN menu is not itself a fault; contact support rather than resetting the phone.
APN on Android
Menu names differ. On Pixel, use Network and internet, SIMs and Access Point Names. On Samsung, use Connections, Mobile networks and Access Point Names.
- Select the Czech Republic eSIM.
- Create or edit an APN only when required.
- Enter
data.esimand save. - Select the saved APN if Android does not do so automatically.
- Restart the data connection and test with WiFi off.
Test in the right order
- Confirm the travel eSIM is the cellular-data line.
- Keep automatic data switching off.
- Enable roaming on the eSIM when instructed.
- Verify validity and remaining allowance.
- Leave network selection automatic.
- Open a simple webpage and map.
Use the Czech Republic troubleshooting guide if the problem continues. The installation guide covers profile setup, while current plans appear on the Czech Republic eSIM page.
What not to do
Do not delete the installed eSIM, reset the entire phone or repeatedly select unsupported networks. Activation codes may be single-use. Send support screenshots of the selected data line, roaming setting and APN without exposing the QR code or order credentials.
Frequently asked questions
What is the NoveSIM APN?
When manual entry is required, use data.esim exactly.
Should I enter an O2, T-Mobile or Vodafone APN?
No. Domestic-operator APNs do not belong to the NoveSIM travel profile.
Why can’t I see the APN menu on iPhone?
The installed profile or carrier configuration may manage it automatically. Contact support instead of resetting the device.
Should I delete the eSIM if the APN does not work?
No. Preserve it and contact support because the activation code may not be reusable.
Final Recommendation
Change the Czech Republic eSIM APN only after verifying the data line, roaming, validity and allowance. Use data.esim exactly, make one controlled change and keep the installed profile intact.