Whois results:

inetnum:        212.91.251.192 - 212.91.251.223
netname:        DNSNET-JUNGHANNS-NET1
descr:          Junghanns.NET
descr:          Gesellschaft für Internet-Services und Software-Development mb
descr:          Breite Str. 13a
descr:          12167 Berlin
country:        DE
admin-c:        DNET-RIPE
tech-c:         DNET-RIPE
status:         ASSIGNED PA
mnt-by:         DNSNET-MNT
source:         RIPE # Filtered

role:         DNS NET NETWORK OPERATION CENTER
address:      DNS:NET Internet Service GmbH
address:      Ostseestrasse 111
address:      D-10409 Berlin
address:      Germany
phone:        +49 30 420278 0
fax-no:       +49 30 420278 78
admin-c:      LUCK-RIPE
tech-c:       LUCK-RIPE
tech-c:       ELEK-RIPE
nic-hdl:      DNET-RIPE
mnt-by:       DNSNET-MNT
remarks:      ---------------------------------------------------------
remarks:      A 24/7 phone number is known to customers and peering
remarks:      partners. In case of any trouble you can also send an
remarks:      email to dns-net.de.
remarks:      ---------------------------------------------------------
source:       RIPE # Filtered


route:        212.91.248.0/22
descr:        DE-1STCOM-200206
origin:       AS15366
mnt-by:       DNSNET-MNT
mnt-lower:    DNSNET-MNT
source:       RIPE # Filtered