CF1763160867138-tsm20251109205412

WWW.RTSAK.COM - 51.21.47.in-addr.arpa

Search for IP or hostnames:

51.21.47.in-addr.arpa checked at 2025-11-14T22:54:27.066Z 362ms 36/36/36 100% R:9 allDone:true timedOut:false

51.21.47.in-addr.arpa

NSauthns1.cvnet.com
A167.206.13.20🇺🇸 Cablevision Systems Corporation
PTRdns1.cvnet.com
NSauthns1.cv.net
A167.206.12.12🇺🇸 Cablevision Systems Corporation
PTRdns1.cv.net

21.47.in-addr.arpa

Up

Starts with same word

Starts similarily

AI analysis

51.21.47.in-addr.arpa is a parent of 234.51.21.47.in-addr.arpa and 165.51.21.47.in-addr.arpa.

Delegation for 51.21.47.in-addr.arpa rests with two name servers, authns1.cvnet.com and authns1.cv.net.

51.21.47.in-addr.arpa shares the same name server setup as other domains, including 63.157.24.in-addr.arpa, 228.187.24.in-addr.arpa, 213.44.174.in-addr.arpa, 220.56.96.in-addr.arpa and 189.247.63.in-addr.arpa.

Host names with one IP number: authns1.cvnet.com points to 167.206.13.20; authns1.cv.net points to 167.206.12.12.

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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