Hologram incident

Partial Global-2 Outage affecting SIMs with prefix 8935*

Hologram experienced a minor incident on March 20, 2026 affecting Global Cellular Data Network and SMS over cellular - Device Terminated and 1 more component, lasting 4h 20m. The incident has been resolved; the full update timeline is below.

Started: Mar 20, 2026, 07:57 PM UTC
Resolved: Mar 21, 2026, 12:17 AM UTC
Duration: 4h 20m
Detected by Pingoru: Mar 20, 2026, 07:57 PM UTC

Affected components

Global Cellular Data NetworkSMS over cellular - Device TerminatedSMS over cellular - Device Originated

Update timeline

investigating Mar 20, 2026, 07:57 PM UTC

One of our upstream network partners is experiencing an outage affecting new registrations on their 2G, 3G, and 4G/LTE networks. We have notified the partner and are working with them to resolve this issue. This outage only affects SIM cards with the ICCID prefix 8935*.
monitoring Mar 20, 2026, 10:54 PM UTC

A fix has been implemented and we are monitoring the results. We are seeing traffic starting to return to normal levels.
resolved Mar 21, 2026, 12:17 AM UTC

This incident has been resolved.