Elevated 2G/3G signaling failures on some networks in the Americas on Global-3 (G3) (ICCID Prefix 894642*)

Update timeline

1. investigating Aug 27, 2026, 10:02 PM UTC

   We are investigating an increase in signaling failures on 2G and 3G networks with our Global-3 carrier partner. Impact appears concentrated in North and South America and affects several operators across multiple countries. Affected devices may fail to attach or register or may see repeated attach retries on 2G/3G. Devices attaching over LTE, LTE-M, or NB-IoT are not currently affected. The disturbance began at 2026-08-27 20:30 UTC.

2. investigating Aug 27, 2026, 10:07 PM UTC

   We are seeing that traffic on the following networks may be impacted by this issue. This may not be an exhaustive list. Affected devices may fail to attach or register or may see repeated attach retries on 2G/3G. Devices attaching over LTE, LTE-M, or NB-IoT are not currently affected. Canada, Bell Canada, Rogers Canada, TELUS Mexico, Telcel Mexico, AT&T USA, Verizon USA, T-Mobile USA, AT&T Jamaica, Flow Thailand, AWN India, Vodafone

3. identified Aug 28, 2026, 12:50 AM UTC

   The carrier partner has traced this to an internal link failure affecting several roaming partners. One of the affected links has been restored, and signaling has returned to normal for devices on Vodafone India and AWN Thailand. Work continues on the remaining affected links. We can also confirm that SK Telecom in South Korea is impacted by this issue.

4. resolved Aug 28, 2026, 07:34 AM UTC

   This incident is resolved. Signaling has been stable across all affected operators since 2026-08-28 02:30 UTC, and extended monitoring has confirmed full recovery. The disruption ran from 2026-08-27 20:30 UTC to 2026-08-28 02:30 UTC, a total of 6 hours. The cause was an internal link failure at an upstream carrier used by several of Global-3 network roaming partners.