Robtex

Up: 192.189.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.189.28.0/25
Down right: 192.189.28.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.189.28.8	PTR	bar1.exit3.com
192.189.28.8	A+PTR	bar1.smarthomes-llc.com
192.189.28.8	PTR	bar1.mastroianni.net
192.189.28.9	PTR	bar2.bee-line.com
192.189.28.9	PTR	bar2.whipcityfiber.com
192.189.28.9	A+PTR	bar2.pv.net
192.189.28.10	A	mail.pv.net
192.189.28.10	A	mail10.wgeld.org
192.189.28.11	A	mail.mastroianni.net
192.189.28.12	A	mail.welchbarba.com
192.189.28.13	A	net.mastroianni.net
192.189.28.13	A	mail.smarthomes-llc.com
192.189.28.14	A	mail.wgeldmlb.org
192.189.28.15	A	mail.exit3.com
192.189.28.17	A	mail.wcfmail.com
192.189.28.18	A	mail.otisfiber.com
192.189.28.18	A	mail1.otisfiber.com
192.189.28.21	PTR	www.smarthomes-llc.com
192.189.28.21	A	www.mastroianni.net
192.189.28.24	A+PTR	ftp.wcfengineering.com
192.189.28.24	A+PTR	www.wcfengineering.com
192.189.28.24	A+PTR	*.wcfengineering.com
192.189.28.25	A+PTR	s2.wgeld.org
192.189.28.28	A+PTR	ns4.wgeld.org
192.189.28.28	A+PTR	ns1.wgeld.org
192.189.28.31	A	mail.wgeld.org
192.189.28.130	A	mail.telltool.com
192.189.28.130	A	webmail.telltool.net
192.189.28.138	PTR	westfieldplating.com
192.189.28.138	A	www.westfieldplating.com
192.189.28.139	A+PTR	westfieldplating.com
192.189.28.139	A	mail.westfieldplating.com
192.189.28.139	A	mail1.westfieldplating.com
192.189.28.154	A+PTR	mail.noblehealth.org
192.189.28.154	A+PTR	nhftp.noblehealth.org
192.189.28.154	A+PTR	secure.noblehealth.org
192.189.28.196	A	mail1.sage-llc.com
192.189.28.196	A	mail.sage-llc.com