Robtex

Up: 40.143.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 40.143.36.0/23
Down right: 40.143.38.0/23

IP	Type	Hostname
40.143.36.14	PTR	h14.36.143.40.ip.windstream.net
40.143.36.31	A+PTR	h31.36.143.40.ip.windstream.net
40.143.36.112	A+PTR	h112.36.143.40.ip.windstream.net
40.143.36.145	A+PTR	h145.36.143.40.ip.windstream.net
40.143.36.192	PTR	h192.36.143.40.ip.windstream.net
40.143.36.200	A	h200.36.143.40.ip.windstream.net
40.143.36.200	A	securelink.allscripts.com
40.143.36.220	A+PTR	h220.36.143.40.ip.windstream.net
40.143.36.220	A	avmr-ral-grid1-util.assure.allscriptscloud.com
40.143.37.24	A	brontodev.com
40.143.37.25	A	bm22dev.com
40.143.37.114	A	brontolabs3.com
40.143.37.116	A	brontolabs4.com
40.143.37.119	A	bm23labs5.com
40.143.37.120	A	brontolabs6.com
40.143.37.121	A+PTR	h121.37.143.40.ip.windstream.net
40.143.37.121	A	bm23labs6.com
40.143.37.126	A	brontolabs9.com
40.143.37.131	A+PTR	h131.37.143.40.ip.windstream.net
40.143.37.133	A	bm23labs12.com
40.143.37.135	A	bm23labs7.com
40.143.37.149	A	bm23labs19.com
40.143.37.162	A	brontolabs26.com
40.143.37.163	A	bm23labs26.com
40.143.37.164	A+PTR	h164.37.143.40.ip.windstream.net
40.143.37.166	A	brontolabs28.com
40.143.37.167	A	bm23labs28.com
40.143.37.168	A	brontolabs29.com
40.143.37.169	A	bm23labs29.com
40.143.37.170	A+PTR	h170.37.143.40.ip.windstream.net
40.143.37.171	A+PTR	h171.37.143.40.ip.windstream.net
40.143.37.176	PTR	h176.37.143.40.ip.windstream.net
40.143.37.179	A	bm23labs34.com
40.143.37.189	A	bm23labs38.com
40.143.37.192	A+PTR	h192.37.143.40.ip.windstream.net
40.143.37.211	A	dc-c68fc8fd.brontostaging.com
40.143.37.212	A	bm23staging.com
40.143.37.235	A	bm23labs43.com
40.143.38.0	PTR	h0.38.143.40.ip.windstream.net
40.143.38.3	PTR	h3.38.143.40.ip.windstream.net
40.143.38.13	A+PTR	h13.38.143.40.ip.windstream.net