Robtex

Up: 66.173.130.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.173.130.0/25
Down right: 66.173.130.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.173.130.11	A	ssl.patientfirst.com
66.173.130.12	A	mail1.patientfirst.com
66.173.130.50	A+PTR	activesync.patientfirst.com
66.173.130.51	A+PTR	zixvpm01.patientfirst.com
66.173.130.51	PTR	securemail.patientfirst.com
66.173.130.52	A	zixvpm02.patientfirst.com
66.173.130.60	A+PTR	smtp.patientfirst.com
66.173.130.61	A	erx.patientfirst.com
66.173.130.61	A	groucho.patientfirst.com
66.173.130.62	A	harpo.patientfirst.com
66.173.130.64	PTR	gateway.patientfirst.com
66.173.130.64	A	direct.patientfirst.com
66.173.130.66	A	uds.patientfirst.com
66.173.130.70	A+PTR	secure1.patientfirst.com
66.173.130.70	A+PTR	vpn.patientfirst.com
66.173.130.73	A	dns.patientfirst.com
66.173.130.73	A	dmzdns1.patientfirst.com
66.173.130.75	A+PTR	pfap.patientfirst.com
66.173.130.76	A+PTR	dmzdns2.patientfirst.com
66.173.130.76	A	pfvc.patientfirst.com
66.173.130.82	PTR	www.patientfirst.com
66.173.130.82	A	patientfirst.com
66.173.130.82	A	centerlocations.patientfirst.com
66.173.130.85	A	urgentcarerichmondva.com
66.173.130.85	A	primarycarerichmond.com
66.173.130.85	A	urgentcareyorkpa.com
66.173.130.89	A	centerlocations.patientfirst.com
66.173.130.89	A	webapi.patientfirst.com
66.173.130.89	A	www.patientfirst.cc
66.173.130.90	A+PTR	careers.patientfirst.com
66.173.130.91	A	cyberrecruiter.patientfirst.com
66.173.130.92	A	patientfirst.com
66.173.130.130	A+PTR	sms.patientfirst.com
66.173.130.130	A+PTR	smsreceive.patientfirst.com
66.173.130.229	A	lloyd.bestpatientfirst.us