Robtex

Up: 69.163.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 69.163.80.0/21
Down right: 69.163.88.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.163.80.20	A+PTR	ns2.mt-opticom.com
69.163.80.34	A	voice.mt-opticom.com
69.163.80.122	PTR	mail.mtopticom.net
69.163.80.122	A	mail.frank-products.com
69.163.80.122	A	mail.integratedweedcontrol.com
69.163.81.27	A	firmwareexpert.com
69.163.81.209	A	mail.montanaellison.com
69.163.81.209	A	montanaellison.com
69.163.82.62	A	speedtest.boz.mt-opticom.com
69.163.83.42	A	crd.me
69.163.83.240	A	samdavistranslations.com
69.163.83.240	A	mangomoons.com
69.163.85.89	A	smartsprocket.com
69.163.85.114	A	svend.bolmeier.net
69.163.85.114	A	bolmeier.net
69.163.85.114	A	farquar.bolmeier.net
69.163.85.212	A	bigskycommercial.com
69.163.86.9	A	mail.libertynickels.org
69.163.86.9	A	bschneider.net
69.163.86.9	A	libertynickels.org
69.163.86.234	A	xeviangaming.com
69.163.88.92	A	gawd.be
69.163.90.36	PTR	36-90-163-69.dynamic.mt-opticom.com
69.163.90.36	A	bobert.tech
69.163.90.75	A	mail.nosynancy.org
69.163.90.129	PTR	129-90-163-69.dynamic.mt-opticom.com
69.163.90.147	PTR	147-90-163-69.dynamic.mt-opticom.com
69.163.90.156	PTR	156-90-163-69.dynamic.mt-opticom.com
69.163.90.190	PTR	190-90-163-69.dynamic.mt-opticom.com
69.163.91.8	A	verwolf.net
69.163.91.8	A	tippmannx7.com
69.163.91.8	A	operatorgroup.com
69.163.92.66	PTR	66-92-163-69.dynamic.mt-opticom.com
69.163.92.80	PTR	80-92-163-69.dynamic.mt-opticom.com
69.163.92.99	PTR	99-92-163-69.dynamic.mt-opticom.com
69.163.92.163	A	cruxkey.net
69.163.92.175	A	benyork.com
69.163.92.175	A	srv2.benyork.com
69.163.92.175	A	benandricki.com