CF1763754278598-tsm20251116095642

MXLIST.NET - 121.4.9.18.in-addr.arpa

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121.4.9.18.in-addr.arpa checked at 2025-11-21T19:44:38.300Z 4061ms 16/16/16 100% R:10 allDone:true timedOut:false

121.4.9.18.in-addr.arpa

PTRoc11exdirsync1.exchange.mit.edu
A18.9.4.121🇺🇸 Massachusetts Institute of Technology
PTRoc11exdirsync1.exchange.mit.edu

4.9.18.in-addr.arpa

Starts with same word

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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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