Robtex

Up: 206.51.142.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 206.51.143.0/25
Down right: 206.51.143.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.51.143.2	PTR	www.nktelco.net
206.51.143.2	A	mail.nktelco.com
206.51.143.2	A	173-224-206-54.nktelco.net
206.51.143.3	PTR	mailserver.nktelco.net
206.51.143.3	A	mail.nktelco.com
206.51.143.3	A	mail.holyredeemercatholicchurch.org
206.51.143.8	A+PTR	206-51-143-8.nktelco.net
206.51.143.10	A+PTR	206-51-143-10.nktelco.net
206.51.143.16	A+PTR	206-51-143-16.nktelco.net
206.51.143.17	A+PTR	206-51-143-17.nktelco.net
206.51.143.18	PTR	exchange.nktelco.biz
206.51.143.18	A	nktelco.biz
206.51.143.21	A+PTR	206-51-143-21.nktelco.net
206.51.143.25	A+PTR	206-51-143-25.nktelco.net
206.51.143.28	A+PTR	206-51-143-28.nktelco.net
206.51.143.33	A+PTR	206-51-143-33.nktelco.net
206.51.143.41	A+PTR	206-51-143-41.nktelco.net
206.51.143.43	A+PTR	206-51-143-43.nktelco.net
206.51.143.44	A+PTR	206-51-143-44.nktelco.net
206.51.143.45	A+PTR	206-51-143-45.nktelco.net
206.51.143.48	A+PTR	206-51-143-48.nktelco.net
206.51.143.51	A+PTR	206-51-143-51.nktelco.net
206.51.143.55	A+PTR	ns2.nktelco.net
206.51.143.56	A+PTR	206-51-143-56.nktelco.net
206.51.143.57	A+PTR	206-51-143-57.nktelco.net
206.51.143.61	A+PTR	206-51-143-61.nktelco.net
206.51.143.63	A+PTR	206-51-143-63.nktelco.net
206.51.143.70	A+PTR	206-51-143-70.nktelco.net
206.51.143.72	PTR	ftp.nktelco.net
206.51.143.72	A	www.nkfire.net
206.51.143.72	A	www.vmnameplate.com
206.51.143.73	A+PTR	206-51-143-73.nktelco.net
206.51.143.75	PTR	www.hometowncable.net
206.51.143.76	A+PTR	206-51-143-76.nktelco.net
206.51.143.79	PTR	www.gldstr.com
206.51.143.79	A	gldstr.net
206.51.143.80	A+PTR	206-51-143-80.nktelco.net
206.51.143.82	PTR	www.kinningerwelding.com
206.51.143.83	PTR	www.burkepetroleum.com
206.51.143.86	PTR	www.safewaypkg.com
206.51.143.88	A+PTR	206-51-143-88.nktelco.net
206.51.143.90	A+PTR	206-51-143-90.nktelco.net
206.51.143.91	A+PTR	206-51-143-91.nktelco.net
206.51.143.96	A+PTR	206-51-143-96.nktelco.net
206.51.143.97	PTR	www.bremenfest.com
206.51.143.102	A	206-51-143-102.nktelco.net
206.51.143.104	PTR	www.djaxe.com
206.51.143.112	A+PTR	206-51-143-112.nktelco.net
206.51.143.116	A+PTR	206-51-143-116.nktelco.net
206.51.143.124	A+PTR	206-51-143-124.nktelco.net
206.51.143.125	PTR	206-51-143-125.nktelco.net
206.51.143.129	A+PTR	206-51-143-129.nktelco.net
206.51.143.131	A+PTR	206-51-143-131.nktelco.net
206.51.143.133	A+PTR	206-51-143-133.nktelco.net
206.51.143.138	A+PTR	206-51-143-138.nktelco.net
206.51.143.140	A+PTR	206-51-143-140.nktelco.net
206.51.143.141	PTR	206-51-143-141.nktelco.net
206.51.143.141	A	*.botkinsohio.com
206.51.143.141	A	www.botkinsohio.com
206.51.143.144	A+PTR	206-51-143-144.nktelco.net
206.51.143.151	A+PTR	206-51-143-151.nktelco.net
206.51.143.152	A+PTR	206-51-143-152.nktelco.net
206.51.143.158	A+PTR	206-51-143-158.nktelco.net
206.51.143.161	A+PTR	206-51-143-161.nktelco.net
206.51.143.170	A+PTR	206-51-143-170.nktelco.net
206.51.143.184	A+PTR	206-51-143-184.nktelco.net
206.51.143.185	A+PTR	206-51-143-185.nktelco.net
206.51.143.186	A+PTR	206-51-143-186.nktelco.net
206.51.143.195	A+PTR	206-51-143-195.nktelco.net
206.51.143.196	A+PTR	206-51-143-196.nktelco.net
206.51.143.198	A+PTR	206-51-143-198.nktelco.net
206.51.143.200	A	206-51-143-200.nktelco.net
206.51.143.207	A+PTR	206-51-143-207.nktelco.net
206.51.143.208	A+PTR	206-51-143-208.nktelco.net
206.51.143.209	A+PTR	206-51-143-209.nktelco.net
206.51.143.211	A+PTR	206-51-143-211.nktelco.net
206.51.143.215	A+PTR	206-51-143-215.nktelco.net
206.51.143.224	A+PTR	206-51-143-224.nktelco.net
206.51.143.225	A+PTR	206-51-143-225.nktelco.net
206.51.143.230	A+PTR	206-51-143-230.nktelco.net
206.51.143.232	A+PTR	206-51-143-232.nktelco.net
206.51.143.236	A+PTR	206-51-143-236.nktelco.net
206.51.143.237	A+PTR	206-51-143-237.nktelco.net
206.51.143.238	A+PTR	206-51-143-238.nktelco.net
206.51.143.241	A+PTR	206-51-143-241.nktelco.net
206.51.143.248	A+PTR	206-51-143-248.nktelco.net
206.51.143.249	A+PTR	206-51-143-249.nktelco.net