CF1760772750646-tsm20251017082432

WWW.ROBTEX.COM - os21.co

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os21.co checked at 2025-10-18T07:32:30.587Z 1674ms 83/83/83 100% R:13

AI analysis

os21.co is the parent of mail.os21.co.

os21.co points to a single IP number: 122.199.230.204.

Other host names, for instance mail.os21.co, share IP numbers with os21.co.

os21.co is delegated to two name servers: ns1.vtopia.co.kr and ns2.vtopia.co.kr.

os21.co shares the same name server setup as other domains, for example vtopia.co.kr, os21.pro, os21.in, os21.net and os21.me.

os21.co at least partially shares name servers with other domains, for example 6.21.113.in-addr.arpa and 229.97.210.in-addr.arpa.

Host names with one IP number:

The host ns1.vtopia.co.kr points to 122.199.220.20 and the host ns2.vtopia.co.kr points to 122.199.221.20.

os21.co is handled by a single mail server, mail.os21.co.

Host name mail.os21.co points to IP address 122.199.230.204.

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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vSxGNuS CF johedugfp 2025-10-18