Robtex

Up: 4.23.82.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 4.23.83.0/25
Down right: 4.23.83.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
4.23.83.30	A+PTR	mail.eastsidecardiology.com
4.23.83.32	PTR	mail.evergreensurgicalcenter.com
4.23.83.49	PTR	zixvpm01.evergreenhealthcare.org
4.23.83.49	A	mail1.halvorsoncancercare.info
4.23.83.49	A	mail1.evergreenhospital.org
4.23.83.50	A	mail.evergreenhealthcare.org
4.23.83.50	A	mail.evergreenhealthcare.net
4.23.83.50	A	mail.evgrn.com
4.23.83.60	A+PTR	autodiscover.evergreenhealthcare.org
4.23.83.60	A+PTR	legacy.evergreenhealthcare.org
4.23.83.60	A+PTR	webmail.evergreenhealthcare.org
4.23.83.64	A	md.evrgrn.org
4.23.83.64	A	evrgrn.org
4.23.83.64	A	mail.evrgrn.org
4.23.83.76	A+PTR	epv.evergreenhealthcare.org
4.23.83.78	A+PTR	compaud.evergreenhealth.com
4.23.83.78	PTR	compaud.evergreenhealthnavigator.com
4.23.83.79	A+PTR	test.evergreenhealthcare.org
4.23.83.81	PTR	fundats.evergreenhospital.org
4.23.83.85	A+PTR	csg.evergreenhealthcare.org
4.23.83.86	A+PTR	nfuse.evergreenhealthcare.org
4.23.83.91	A+PTR	weblink.healthlines.org
4.23.83.99	A+PTR	out1.evergreenhealthcare.org
4.23.83.100	A+PTR	out.evergreenhealthcare.org
4.23.83.101	PTR	mailserver1.echc.org
4.23.83.102	A+PTR	mailserver4.echc.org
4.23.83.105	PTR	physicians.evergreenhospital.org
4.23.83.108	A	employees.evergreenhealthcare.org
4.23.83.110	A	partners.evergreenhealthcare.org
4.23.83.116	A+PTR	awds.evergreenhealth.com
4.23.83.122	A+PTR	mybreasthealthrecord.evergreenhealthnavigator.com
4.23.83.200	A+PTR	hpuc.evergreenhealthcare.org
4.23.83.200	PTR	cerndbprod1.evergreenhealthcare.org
4.23.83.200	A+PTR	cerndbdev1.evergreenhealthcare.org
4.23.83.252	A+PTR	vpn.evergreenhealthcare.org