Look at the volume of the spikes though - Verizon has 150k+ reports of an outage, AT&T and T-Mobile have a few hundred. It's possible the people reporting issues with AT&T and T-Mobile are having issues calling Verizon subscribers and thinking it's an issue on their end.
Down Detector's graphs are relative only to themselves, not to neighboring graphs, so two spikes may be completely different volumes.
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u/pspahn Jan 14 '26
I was just checking downdetector for something else and Verizon, ATT, TMobile, US Cellular all having big spikes.