go
195.47.113.23.adsl.nextra.cz has one IP record. gala.adslink.cz and gala.adsllink.cz point to the same IP. 195.47.113.23 reverses to this hostname.

195.47.113.23.adsl.nextra.cz
a records
 
+ 195.47.113.23 195.47.0.0/17 AS2819 -
+ --- -
+ --- gala.adslink.cz
+ --- gala.adsllink.cz

adsl.nextra.cz
+ 81.95.101.194 81.95.96.0/20 AS25234 gds39c.active24.cz
+ --- gds39c.active24.cz
ns records
sns.nextra.cz
+ 193.85.2.117 193.85.0.0/16 AS2819 -
+ --- -
dns.nextra.cz
+ 193.85.1.117 193.85.0.0/16 AS2819  
+ ---  
hostnames sharing ip with a-records
gala.adslink.cz
gala.adsllink.cz
ip:s using ptr to this host
195.47.113.23