Degraded authentication on 20416 IMSI range

Incident Report for Onomondo

Resolved

This incident has been resolved.
Posted Apr 07, 2026 - 15:21 CEST

Update

The incident has been resolved; our systems indicate that all SIMs are authenticating successfully.
Posted Apr 07, 2026 - 15:21 CEST

Monitoring

The authentication issues have now been resolved and we are seeing significant improvemnet with the devices successfully authenticating.

We will continue to monitor for an extended period and will provide further updates if more information becomes available.

In case you are still having issues, please reach out to our Support Team via our Help Center.
Posted Apr 07, 2026 - 14:43 CEST

Investigating

We are investigating an issue affecting a subset of SIMs from authenticating successfully.

This issue only affects devices attempting to authenticate, devices already connected will remain unaffected.

Our team is actively working to identify the root cause and mitigate the impact. We will provide further updates as more information becomes available.
Posted Apr 07, 2026 - 14:21 CEST
This incident affected: Network.