CF1760531178403-tsm20251015074336

MXLIST.NET - sos2.cs.columbia.edu

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sos2.cs.columbia.edu checked at 2025-10-15T12:26:18.392Z 164ms 22/22/22 100% R:9
Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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