Robtex

Up: 185.38.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.38.40.0/23
Down right: 185.38.42.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.38.40.89	A	mail.js-soft.com
185.38.40.89	A	mail.js-soft.de
185.38.40.91	A	hcm-tools.com
185.38.40.91	A	js-soft.de
185.38.40.92	PTR	mx.lebenshilfe-wiesloch.de
185.38.40.119	A	vpn.cns-info.de
185.38.40.121	A	webaccess.dsag.de
185.38.40.127	A+PTR	remote.edp-germany.de
185.38.40.127	A+PTR	mail.edp-germany.de
185.38.40.144	PTR	mail.card.de
185.38.40.144	A	mail.card-plm.com
185.38.40.144	A	mail.card-america.com
185.38.40.150	A	london.card.de
185.38.40.150	A	ns1.card.de
185.38.40.217	A	mail.bscsolutions.org