Resolved - Disruption in the Tele2 GSM network

Jun 20, 2023


Tele2 confirms recent SIM outage has been resolved

Incident Solved

Tele2 have now confirmed that the recent SIM outage affecting their service has now been resolved. 
Monitoring, testing and customer feedback has shown that services are now restored and stable.

We will continue to closely monitor the service and support customers. A root cause investigation is now underway with Tele2, we will provide further updates as they become available.


Affected Service Areas

Tele2 2G and 3G services – Data and Voice Communication over 2G and 3G

Incident affects all GSM telecare hubs


Reported Date / Time

20/06/2023 00:25 (CEST)

Latest Update

20/06/2023 12:45 (CEST)

The configuration changes made by Tele2 are successful. 25% of Tele2 SIM cards are now back in operation including all the Estonian SIM cards (which are used for roaming in Sweden).


Tele2 has now started to un-block the rest of the SIM cards which is expected to take 1-2 hours to complete.


Tunstall will be among the prioritized customers to be un-blocked.



20/06/2023 11:12 (CEST)

Removing routing to bypass suspected nodes seems to have stabilized the failure rate for our subscribers.

Tele2 is now preparing to gradually unblock subscriber SIMs.



20/06/2023 10:46 (CEST)


Troubleshooting is ongoing and the issue is still affecting data and voice communication network sessions over 2G, 3G and 4G networks.


The supplier, Tele2, is working with its vendors to resolve the issue. They currently suspect a node routing issue which are currently bypassing which will restore service to their subscribers.


The case is escalated with urgency and updates will be provided in an hourly basis

We apologise for any inconvenience caused and thank you for your cooperation.