Robtex

Up: 216.106.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.106.208.0/23
Down right: 216.106.210.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.106.208.6	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.208.14	A	mail.heimanfire.com
216.106.208.14	A	mail.g3fire.com
216.106.208.16	A	remote.dakotalandtransportation.com
216.106.208.17	A	server.buildingsprinkler.net
216.106.208.29	A+PTR	mail.3dsec.com
216.106.208.33	PTR	33.208.106.216.static.sdncommunications.com
216.106.208.40	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.208.41	PTR	41.208.106.216.static.sdncommunications.com
216.106.208.41	A	mail.theancestrytree.com
216.106.208.41	A	mail.turfchirp.com
216.106.208.69	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.208.75	A+PTR	75.208.106.216.static.sdncommunications.com
216.106.208.81	A	81.208.106.216.static.sdncommunications.com
216.106.208.85	A	85.208.106.216.static.sdncommunications.com
216.106.208.89	A	89.208.106.216.static.sdncommunications.com
216.106.208.95	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.208.123	A	123.208.106.216.static.sdncommunications.com
216.106.208.138	PTR	138.208.106.216.static.sdncommunications.com
216.106.208.164	A	164.208.106.216.static.sdncommunications.com
216.106.208.165	A	thealthofflineliveson.com
216.106.208.174	A+PTR	174.208.106.216.static.sdncommunications.com
216.106.208.174	A	tomservo.org
216.106.208.179	A+PTR	179.208.106.216.static.sdncommunications.com
216.106.208.186	A	186.208.106.216.static.sdncommunications.com
216.106.208.196	A	196.208.106.216.static.sdncommunications.com
216.106.208.242	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.209.115	PTR	115.209.106.216.unassigned.sdncommunications.com
216.106.209.142	PTR	142.209.106.216.unassigned.sdncommunications.com
216.106.209.142	A	sodcity.com
216.106.210.1	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.1	A	1.210.106.216.unassigned.sdncommunications.com
216.106.210.6	A	mail.heftyseed.com
216.106.210.7	A+PTR	7.210.106.216.unassigned.sdncommunications.com
216.106.210.7	A	julsonkennel.com
216.106.210.7	A	annanorton.com
216.106.210.13	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.13	A	13.210.106.216.unassigned.sdncommunications.com
216.106.210.33	PTR	33.210.106.216.unassigned.sdncommunications.com
216.106.210.36	A	36.210.106.216.unassigned.sdncommunications.com
216.106.210.54	PTR	54.210.106.216.unassigned.sdncommunications.com
216.106.210.56	A	56.210.106.216.unassigned.sdncommunications.com
216.106.210.60	PTR	60.210.106.216.unassigned.sdncommunications.com
216.106.210.82	A+PTR	82.210.106.216.unassigned.sdncommunications.com
216.106.210.113	A	113.210.106.216.unassigned.sdncommunications.com
216.106.210.116	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.118	PTR	118.210.106.216.unassigned.sdncommunications.com
216.106.210.132	PTR	132.210.106.216.unassigned.sdncommunications.com
216.106.210.146	A+PTR	146.210.106.216.unassigned.sdncommunications.com
216.106.210.157	A+PTR	157.210.106.216.unassigned.sdncommunications.com
216.106.210.169	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.185	PTR	185.210.106.216.unassigned.sdncommunications.com
216.106.210.186	A	186.210.106.216.unassigned.sdncommunications.com
216.106.210.195	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.195	A	195.210.106.216.unassigned.sdncommunications.com
216.106.210.201	A+PTR	201.210.106.216.unassigned.sdncommunications.com
216.106.210.216	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.226	A	226.210.106.216.unassigned.sdncommunications.com
216.106.210.229	A+PTR	229.210.106.216.unassigned.sdncommunications.com
216.106.210.242	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.210.255	A	255.210.106.216.unassigned.sdncommunications.com
216.106.211.93	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.211.127	PTR	cust.114559.sxflsdch38r.sdnet.net
216.106.211.213	PTR	cust.114559.sxflsdch38r.sdnet.net