Robtex

Up: 12.145.188.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 12.145.188.0/25
Down right: 12.145.188.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
12.145.188.5	PTR	mail01.thrivent.com
12.145.188.30	A	service.aal.org
12.145.188.40	A	headbone.aal.org
12.145.188.47	PTR	twtreo0001.luthbro.com
12.145.188.61	PTR	css-d.thrivent.com
12.145.188.61	A+PTR	dnsh.thrivent.com
12.145.188.61	PTR	css-h.aal.org
12.145.188.135	A+PTR	citrix-w1.thrivent.com
12.145.188.136	PTR	fieldaccess.thrivent.com.thrivent.com
12.145.188.138	PTR	wseite.thrivent.com
12.145.188.140	A	gateway.thrivent.com
12.145.188.140	A	headbone.thrivent.com
12.145.188.140	A	dev.thrivent.com
12.145.188.148	PTR	lutheransonline.com
12.145.188.159	PTR	securemessagecenter.inttst.thrivent.com
12.145.188.159	PTR	securemessaging.inttst.thrivent.com
12.145.188.166	A	thriventstg.com
12.145.188.251	A+PTR	pllowas001.lutheransonline.com
12.145.188.251	A+PTR	www1.lutheransonline.com
12.145.188.251	A+PTR	pllowas001.thrivent.com
12.145.188.252	A	www2.lutheransonline.com
12.145.188.252	A	pllowas002.lutheransonline.com