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AT&T/Lumen interconnection disruption in ATL


From: nanog--- via NANOG <nanog () lists nanog org>
Date: Tue, 16 Dec 2025 16:32:33 -0000

I lost access to the Lumen network from AT&T in Atlanta for 27 minutes (12-16-2025 15:50 to 12-16-2025 16:17 - times 
UTC) and wanted to check if anyone else saw this from other networks/locations? It restored on it's own and from the 
traceroutes I was able to perform while it was down vs. now it seemed to be stuck making the jump between AT&T and 
Lumen @ 76.239.207.188 (AT&T per ARIN whois). Once things restored it progressed onto 4.68.62.225 
(ae8.edge4.atl2.sp.lumen.tech) and then to the final destination. There was one instance where there was another hop in 
between those 2 @ 32.130.89.13 (AT&T per ARIN whois), but it is no longer showing up on retries.
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