From reporting, it impacts only AT&T. Thanks
@Annie_M for confirming that it affects T911 (9-1-1 over SMS).
I was texting former coworkers, and they're on other carriers - namely T-Mobile in Atlanta, USA. And I'm not impacted by being in Canada, although I did lose 5G/5G SA service last night (I had 4G and full service is restored this morning).
A large-scale AT&T outage across the US has been acknowledged by the carrier, which says it is investigating. Issues have...
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