this post was submitted on 22 Feb 2024
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70,000 ATT customers are without service across the US (arstechnica.com)
submitted 10 months ago* (last edited 10 months ago) by TravisKelce to c/technology
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[–] [email protected] 21 points 10 months ago

It was BGP

"According to an industry source who spoke on the condition of anonymity, the root of the outage appeared to be related to how cellular services hand off calls from one network to the next, a process known as peering. "

https://www.cnn.com/2024/02/22/tech/att-cell-service-outage/index.html