go
static-ip-217-172-161-234.inaddr.intergenia.de has one IP number , but the reverse is ns6.nameserverservice.de. ns6.kreativ-webservice.de point to the same IP. inaddr.intergenia.de has one IP number. static-ip-217-172-161-234.inaddr.intergenia.de is hosted on a server in Germany.

static-ip-217-172-161-234.inaddr.intergenia.de
a records
 
+ 217.172.161.234 217.172.160.0/19 AS8972 ns6.nameserverservice.de
+ --- ns6.nameserverservice.de

inaddr.intergenia.de
a records
 
+ 127.0.0.1 AS?  
+ ---  
ns-soa records
 
+   AS?  
+ ---  
ip numbers of host
217.172.161.234
ptrs of ip numbers
ns6.nameserverservice.de
hostnames sharing ip with a-records
ns6.kreativ-webservice.de
domains using this as nameserver under another name
es-gibt-einen-weg.de