DNSWHOIS.INFO - challenge-21c.co.jp

Search for IP or hostnames:

challenge-21c.co.jp checked at 2025-10-07T18:50:22.778Z 562ms 86/86/86 100% R:18

`challenge-21c.co.jp`

MX	`mx-0.aams6.jp`
		A	101.102.238.130^{🇯🇵 SoftBank Corp.}
MX	`mx-1.aams6.jp`
		A	101.102.238.131^{🇯🇵 SoftBank Corp.}
MX	`mx.aams6.jp`
		A	101.102.238.129^{🇯🇵 SoftBank Corp.}
NS	`name.technowave.ad.jp`
		A	202.211.32.78^{🇯🇵 Equinix Legacy Network - TY9}
			PTR	`dns.waves.jp`
			PTR	`hpdnstest.technowave.ad.jp`
			PTR	`name.technowave.ad.jp`
			PTR	`ns.technowave.ne.jp`
		A	202.211.33.74^{🇯🇵 Equinix Legacy Network - TY9}
			PTR	`name.technowave.ad.jp`
			PTR	`ns.technowave.ne.jp`
NS	`ns.technowave.ne.jp`
		A	202.211.32.78^{🇯🇵 Equinix Legacy Network - TY9}
			PTR	`dns.waves.jp`
			PTR	`hpdnstest.technowave.ad.jp`
			PTR	`name.technowave.ad.jp`
			PTR	`ns.technowave.ne.jp`
		A	202.211.33.74^{🇯🇵 Equinix Legacy Network - TY9}
			PTR	`name.technowave.ad.jp`
			PTR	`ns.technowave.ne.jp`
A	180.55.189.143^{🇯🇵 NTT Communications Corporation (OCN)}
		PTR	`180-55-189-143-revip-jp7-default.189.55.180.in-addr.arpa`

origin.challenge-21c.co.jp

challenge-21c.co.jp

challenge-21c.com

challenge-21c.co.jp

challenge-21c.com

challenge-21c.co.jp is the parent of origin.challenge-21c.co.jp.

challenge-21c.co.jp resolves to a single IP address: 180.55.189.143.

Other host names including a-tect.net, k-r-c.co.jp, shimizu-kk.com, origin.jafs99.co.jp and t-c-i.jp share IP numbers with challenge-21c.co.jp.

challenge-21c.co.jp's delegation uses two name servers, name.technowave.ad.jp and ns.technowave.ne.jp.

challenge-21c.co.jp shares the same name server setup as other domains, for example aoca.jp, ss-create.com, i-s-k.com, sapporo-weekly.com and toniho.co.jp.

challenge-21c.co.jp at least partially shares name servers with other domains; for instance sanko-inc.co.jp.

Names with two IPs:

challenge-21c.co.jp is handled by three mail servers: mx-0.aams6.jp, mx-1.aams6.jp and mx.aams6.jp.

The mail servers for challenge-21c.co.jp are shared with other domains, for instance sd-wu.com, nishigen.jp, kazuki-inc.co.jp, cosmo-tec.co.jp and rvs.co.jp.

Hostnames with a single IP:

dbq