CF1762306599603-tsm20251104152717

MXLIST.NET - 21.251.221.in-addr.arpa

Search for IP or hostnames:

21.251.221.in-addr.arpa checked at 2025-11-05T01:36:39.586Z 354ms 42/42/42 100% R:15

21.251.221.in-addr.arpa

NSns01.usen.ad.jp
A61.122.116.130🇯🇵 ARTERIA Networks Corporation (UCOM)
PTRns01.usen.ad.jp
NSns02.usen.ad.jp
A61.122.116.162🇯🇵 ARTERIA Networks Corporation (UCOM)
PTRns02.usen.ad.jp
NSns03.usen.ad.jp
A61.122.116.163🇯🇵 ARTERIA Networks Corporation (UCOM)
PTRns03.usen.ad.jp

251.221.in-addr.arpa

Up

Starts with same word

Starts similarily

AI analysis

21.251.221.in-addr.arpa is a parent of 163.21.251.221.in-addr.arpa and 155.21.251.221.in-addr.arpa.

21.251.221.in-addr.arpa is delegated to three name servers ns01.usen.ad.jp, ns02.usen.ad.jp and ns03.usen.ad.jp.

21.251.221.in-addr.arpa at least partially shares name servers with other domains, for instance 45.220.122.in-addr.arpa, 80.35.113.in-addr.arpa, 211.43.113.in-addr.arpa, 80.117.221.in-addr.arpa and 33.36.124.in-addr.arpa.

Host names with one IP number: ns01.usen.ad.jp points to 61.122.116.130; ns02.usen.ad.jp points to 61.122.116.162; ns03.usen.ad.jp points to 61.122.116.163.

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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